Natural Selection Works in Fruit Flies 02/28/2002
Two papers in the
Feb 28 Nature, one by
Smith and Eyre-Walker,
another by Fay, Wyckoff and Wu
make a case that natural selection works in fruit flies.
They claim their evidence discredits the theory of neutral
evolution, that most mutations have no effect on the
fitness of the organism.
These papers are basically
evolutionists fighting among themselves which theory is
correct, when neither explains the origin of information and
new organs. The sample size is sufficiently small and the tweak space
sufficiently large to allow them to prove their a priori
assumptions. But they start with fruit flies and end up with
fruit flies; wheres the evolution?
Next headline on: Darwinism.
Intelligent Design Discussed in Missouri Newspaper 02/28/2002
The Feb 24 Digital Missourian
has a feature story by John Heys entitled, Deconstructing Darwin: A
new theory of evolution challenges conventional thought. It
gives approximately equal time to William Harris, proponent of Intelligent
Design, and Jan Weaver and Garland Allen, defenders of Darwinism.
As public consciousness of Intelligent
Design theory grows, it will become increasingly important to
recognize the types of rebuttals the Darwinists use. Unfortunately,
they often convey a tone of patronizing arrogance (These people
just dont understand evolution and dont understand science)
that comes from their long hegemony over the scientific institutions.
We want to take this opportunity to hunt, in their defense of Darwin, for
substance instead of propaganda tactics, logical fallacies,
and smokescreens (i.e., baloney). Consider these quotes from the
article, that amount to essentially their whole case:
- statements like the one advertised by the Discovery Institute
[e.g., biological information is the fingerprint of intelligence;
evolution is a philosophy that stifles consideration of all
but naturalistic causes]
show a lack of understanding of evolution, its mechanisms and the
calculation of probabilities. In particular, says Weaver, the statement
ignores several other mechanisms for evolution like symbiosis and
jumping genes.
Big lie and bluffing. I.D. proponents often know
more about evolution than the evolutionists do. Symbiosis and
jumping genes are not mechanisms of evolution. Neither of these
explain the origin of information, and evolutionists themselves rely
on traditional mutations plus natural selection as the mechanism,
almost all of the time.
Weaver also doubts the nature of the evidence cited by proponents of
intelligent design. There is no objective, independent
way to determine if something is designed, she says.
Big lie, or ignorance. William Dembskis book
The Design
Inference, widely known as
a key
I.D. text, defines an
objective explanatory
filter that can segregate design from chance or
natural causes. Design explanations are used routinely in other
sciences: cryptography, forensics, archaeology, and SETI.
The majority of her peers in the scientific community, Weaver
says, agree.
The old Bandwagon tactic.
A more troubling implication, Weaver says, is that intelligent
designs proponents attack the secular purposes of evolution science
but allegedly camouflage their educational and public policy motives.
Fear-mongering and hate-mongering. This argument
ignores any merit in I.D. arguments and just tries to speculate about
conspiracies and hidden agendas, as if Darwins defenders have
none (but the sole purpose of the NCSE is to keep evolution in the science
classroom and keep creation out).
Allen, sharing this concern, describes the theory as
watered down creationism.
Loaded words and ridicule. Again, no serious
response, just mudslinging with arrogance.
Weaver explains including a concept like intelligent design in
science curricula could lead to the introduction of other subjects that
lack the underpinnings of prior scholarship and evidence, which are the
hallmarks of Western education since the Renaissance.
More fear-mongering and association, and red herring.
Weaver associates Darwinism with the Renaissance, when history shows
it was creationists and believers in design who
gave us the scientific method in the first place, and made some of the
most important discoveries.
That could be a dangerous door to open, Weaver
said. Behind this door, Weaver says, lie other unverifiable
concepts like alien abductions, astrology, mind reading and
ghosts.
Oh, the bogeymen. This fear-mongering and negative-association
tactic is so absurd it need not be dignified with a response.
Allen says the Discovery Institutes dissent and the
ensuing debate underscores that science is always open to challenge.
Debates in science, he explains, often confuse many non-scientists because
they misunderstand that science always evolves.
Equivocation and association. Allen equates
evolution with science, when it is a philosophy: methodological
naturalism, a system of interpreting the observational facts that
both evolutionists and creationists accept.
Allen cites a Colorado effort, funded by the National Science
Foundation, to develop a science curriculum that teaches evolution as
an example of how the science process works. Efforts like these,
Allen says, can help raise awareness of how science is done.
Ignoring the opposition, indoctrination, non-sequitur.
How is teaching more evolution, and ignoring the controversy,
supposed to improve science education? Is that how science works?
- Every theory weve (science has) ever had has
changed over time, Allen says. We may someday have an
evolution theory that looks very different from what we have
now. But Allen does not believe that future refinements of
the theory will invoke a mystical part similar to ideas
advanced by intelligent design advocates.
Straw man argument. I.D. proponents are not
mystics. In fact, they are trying to get scientific discussions
of origins away from the mystical pantheism of evolution that treats
natural selection like a goddess, able to work miracles like creating
bat sonar and wings without leaving a trace in the fossil record.
If evolution evolves, maybe some day it will evolve into intelligent
design; is that a possibility in their thinking? Of course not;
evolution is a fact [dogma].
- This conventional wisdom [i.e., evolution] has guided work in
other scientific areas. Garland Allen, a biology professor at
Washington University in St. Louis, says many advances in plant science
have been based on evolutionary ideas. Some of these same ideas,
Allen says, have changed the way we practice medicine in
the fight against disease. Allen, who also studies the history,
philosophy and sociology of science, cites a thesis defended in his
department that applied models based on conventional evolutionary ideas
to HIV, the virus that causes AIDS. The virus can mutate rapidly,
requiring changes in medical treatment to match its evolution.
Here is the only attempt to supply a substantive idea
that evolution is good for science, but it is just bluffing with only
one questionable example cited. We have reported often
in Creation-Evolution Headlines that evolutionary
explanations in botany and zoology are forced and unnatural, leading
to conundrums and contradictions (wander through the
Chain Links on Darwin for many examples). This argument also begs the question
whether evolution is the best explanation, or the only one.
Regarding HIV, we reported on August 28
that some scientists feel HIV represents a stable quasi-species, and
that there is no evidence whatsoever it is evolving.
It could also be argued that evolution is bad for science;
look at the
old argument about vestigial organs that quelled research on tonsils,
the appendix, the pineal and pituitary glands, and other organs
assumed to be useless evolutionary leftovers. A belief these organs
were designed could have encouraged scientists to discover their
functions. Belief in intelligent design has often spurred
great scientists to make their discoveries.
Have Allen and Weaver made a good case for the exclusion of intelligent
design in science classes? Have they defended Darwinism as the
only contender? Sift their arguments through the
Baloney Detector and see what remains.
Next headline on: Darwinism and Evolutionary Theory.
Next headline on: Intelligent Design.
Tyrannosaurus Not a Sprinter 02/28/2002
A new analysis in the
Feb 28 Nature
claims that T. rex was too heavy-set to run, and probably only
managed a 12 mph walk. For summary, see
Nature
Science Update.
Sorry to ruin all your Jurassic Park
nightmares. Youd still have to run, though.
Next headline on: Dinosaurs.
Paper: Evolution of constants: has the speed of light or the
electric charge changed? a new analysis about how to discriminate
between which component has varied if the fine structure constant has
varied: the speed of light, or the electric charge. Paper by
Maguiejo, Barrow and Sandvik, in
arXiv preprint
server. (For background, see our Aug
15 headline on the possibility of varying physical constants.)
Next headline on: Physics.
Protein Folding an Olympic Event 02/27/2002 A news release from the
University of Pennsylvania puts biological molecules into the Winter Olympics:
Its a long-simmering debate in the
world of physical chemistry: Does the folding of proteins into
biologically active shapes better resemble a luge run - fast, linear
and predictable - or the more freeform trajectories of a ski
slope? New research from the University of Pennsylvania offers
the strongest evidence yet that proteins shimmy into their
characteristic shapes not via a single, unyielding route but by paths
as individualistic as those followed by skiers coursing from a mountain
summit down to the base lodge.
The researchers, who published in this weeks
Proceedings of
the National Academy of Sciences, found a great deal of variety in
the paths and rates of folding.
Only when a protein is folded correctly can it perform its function.
Misfolded proteins are the cause of many serious diseases. The
team explains that there are chaperones on hand to fix errors:
In the skiing analogy, chaperones
could be thought of as rescue helicopters that return wayward skiers to
the summit so they can try to make their way down the mountain
again, said [Feng] Gai, an assistant professor of chemistry at
Penn.
Protein folding is fiendishly intricate, yet crucial
to the chemistry of life - so much so that a small army of biologists
and chemists has devoted itself to better understanding the process.
Another article in another source describes just how fiendishly intricate
the process is. The March 12 issue of
PC
Magazine has a feature section on Technology in America. Alan
Cohen describes how supercomputers, after showing their skill in
deciphering the human genome, are trying to tackle the puzzle of
protein folding:
Problems like protein folding, where the number of possible shapes for
the average-size protein is greater than the number of atoms in the
universe, are far more complex. Thus, such problems require
a tighter, faster, parallel machine, where the processors of each
work in conjunction with the others, says Professor [David A.]
Bader [director of the High Performance Computer Lab at the University
of New Mexico].
... Advances like these require intense computation,
and as impressive as the clusters that sequenced the genome are,
theyre not enough for this new phase.
IBMs Blue Gene project, which will be able to
perform 1 quadrillion operations per second, sets out to tackle protein
folding. IBM scientists estimate that calculating the folding
process of even a very small protein on todays most powerful
computer would take 300 years. Even Blue Gene, once completed in
2005, will take a year to crunch the numbers.
In other words, the cell accomplishes with ease, thousands of times a
day, within milliseconds, what todays most powerful computers
would take 300 years to figure out.
Proteins are likely to overshadow DNA
as the hottest topic in biology. Most lay people think of meat or
poultry when they hear the word protein, thinking of one of the basic
ingredients of food, which of course, protein is. But on the molecular
level, proteins are a toolkit of staggering complexity and design.
Made up of chains of amino acids, all left-handed and often hundreds of
units long, their precise folded shapes allow them to perform thousands
of tasks in the cell. They are the Legos of molecular biology, but
not just toy tanks and planes and soldiers, but real ones made of the same 20
building blocks.
Proteins shuttle cargo around, they speed up
chemical reactions, they open and close gates into the cell and the
nucleus, they form structural scaffolds and roadways, they proofread DNA,
and much more. Perhaps most astonishing, they form actual
motors that can spin up to 100,000 RPM (in the case of the bacterial
flagellum). Modern biochemistry is pulling back the curtain on
a new universe of microminiature machines that keep us, and the
simplest bacteria, alive. In
Darwins day, such wonders could not have been imagined.
The time has come to cast off a paradigm far too simplistic to account
for a technology this advanced.
See also this May 3 headline about the
dynamic stresses affecting protein folding.
Next headline on: The Cell and Biochemistry.
Next amazing story.
Introns Found in Primitive Eukaryote 02/26/2002
Another evolutionary assumption needs revision.
Science
Now reports that introns have been found in Giardia, a primitive
eukaryotic single-celled organism. Sometimes considered junk
DNA, introns are pieces of genetic code that do not code for proteins,
that have to be cut out of the strand by genetic scissors called spliceosomes
before transcription can begin. Introns were thought to have evolved
later in the eukaryotic line, but here they were, scissors and all, in
an early primitive eukaryote. The original paper is in
the Feb 19 Proceedings
of the National Academy of Sciences.
Introns are a bit of a mystery as to their
function, but we have learned to question the assumption that anything in biology is
useless. The machinery to handle introns and move pieces of
genetic code around is very sophisticated and complex. Introns and
transposons are subjects of intense research; indications are that they will
prove to be vital for proper operation of the cell. This story
puts more pressure on evolutionists to explain how complex machinery
that cuts and splices DNA and knows just where to put it
could have evolved by chance in the earliest, simplest nucleated cells.
Next headline on: The Cell.
Alaskan Dinosaurs Cause Shivers for Meteor Impact Theory 02/26/2002
Everybody knows that a big
meteor
impact killed off all the dinosaurs
60 million years ago; thats what scientists have been telling us
for almost two decades now (and it was the dramatic ending of
Walking with Dinosaurs). But a cache of finely-preserved dinosaur
bones along the Colville River in Alaska, reported in the
Alaska
Daily News, is calling that theory into question.
The dinosaurs at this high latitude were too well adapted
to cold to have been knocked off by one nuclear winter
(which we reported on Jan 22 may not have
resulted from a big impact anyway; today,
National
Geographic released a summary of that story). Meanwhile,
scientists are drilling into the
Chicxulub
Crater in the Yucatan, so we shall have to wait and see what
becomes the next conventional wisdom.
The massive deposits along the Colville
River have the potential to upset a lot of theories. Creationists
claim to have found unfossilized bone and cartilage. This could
call into question the whole idea that dinosaurs went extinct millions
of years ago.
Let the impact theory be a lesson about how one
generations accepted truth might become the next generations
trash. The real impact was not from a meteorite, but from propaganda,
the power of a fictional story made real by artistic computer graphics
and doled out by authoritative-sounding experts.
Next headline on: Dinosaurs.
Scientists Harness Cells Machines as Robots 02/26/2002
Nano-robots have been designed to map out surfaces of materials
at 20-nanometer resolution, according to an article in
Nature
Science Update. The University of Washington team harnessed
cell scaffolding called microtubules that are ferried about by
cell motors called kinesins.
This underscores the fact that kinesins
are indeed true machines; we can get into the drivers seat and
drive them around. They are freely called motors
in the literature. The old argument by Scottish skeptical philosopher
David
Hume is dead, that living
tissue could not be compared to artificial machines, like wristwatches.
Enlightenment rationalists have used this argument to combat
William
Paleys Divine Watchmaker
argument for the existence of God. But now, in our time,
the discoveries in molecular cell biology have
resurrected Paleys argument and given it increased force.
Next headline on: The Cell and Biochemistry.
Next headline on: Intelligent Design.
PBS Clears the Air on Scopes Trial 02/25/2002
In his Weekly Wedge Update for Feb. 25,
Phillip
Johnson says that PBS has done a service to dispel myths about
the Scopes Trial in their recent airing of Monkey Trial,
Feb. 17. He states, You may assume on the basis of their
record that WGBH and PBS would present only Darwinist propaganda, but
you would be mistaken. Perhaps WGBH is trying to atone for its
sins. MT totally demolishes the Inherit The Wind myth of the
Scopes trial and tells all kinds of truth about the event and the
participants, truth that has long been suppressed or distorted.
Johnson also recommends an article by Barry Commoner in the
February 2002
Harpers, which,
he claims, inadvertently debunks neo-Darwinism while debunking myths about
DNA. Commoner seeks to dispel
the central dogma of molecular biology, that DNA alone is
the sole repository of the code of life, arguing that the proteome is
just as important.
The movie Inherit the Wind is
a classic propaganda piece geared to make evolutionists look respectable
and critics of evolution (particularly Bible-believing Christians) look
like bigoted obscurantists. Those familiar with what actually
took place in the Scopes Trial (1925 in Dayton, Tennessee) know that
William Jennings Bryan stuck to the issue while evolutionists held
a media circus with loaded words, ridicule, and other propaganda
flying fast and furious. Inherit the Wind did not claim
to be a re-enactment of the Scopes Trial (the names of characters were
changed, etc.), so that its producers were free to lie and invent
incidents out of thin air, but everybody knows the Scopes Trial was the
basis for the movie. Its good that some historical
facts are coming to light to clear the air, but caution is still advised
for any PBS treatment of such a heated subject. The old
Inherit the Wind, however,
should be viewed only as a case study in twisting history to advance a
point of view.
Next headline on: Movies.
Crabs Evolved Five Times 02/25/2002
A paper by Morrison et al in the Feb 22
Biological
Proceedings of the Royal Society claims that gene sequence studies show
that the crab-like form evolved five times independently, a
remarkable case of parallel evolution. Some crabs are so similar
that observers have a hard time telling they come from different
lineages. The authors explain that in convergent evolution, selective
forces in the environment produce similar structures (such as in
streamlining in sharks and in marine reptiles), but in parallel evolution
(such as crabs), no selective forces are known:
More enigmatic are cases in which a group of organisms seem to
have a tendency to produce the same form or structures repeatedly, but
in which the basis for selection is not so obvious. They
postulate that some developmental mechanism must lead to this body form,
and it appears to be irreversible. But they admit they cannot say
for certain why the crab body has evolved so many times independently.
Something is seriously wrong with
this hypothesis. How can anyone believe the highly unlikely crab
form appeared not once, not twice, but five times independently, with
some so similar that a casual observer would not be able to tell them
apart? Darwinists keep saying that evolution is directionless; that
it is unlikely that aliens would ever look like us, for instance.
But here you have them saying five different families of organisms are all
walking the same road. How can parallel evolution
even exist within a strict understanding of Darwinism?
The terms parallel evolution and
convergent evolution are vacuous terms; they are
merely equivocations designed to
save Darwinism from the evidence.
Here we have another serious case of molecular phylogeny
disagreeing with phenotypic phylogeny (see also this
Feb 6 headline about birds and many more
in the back issues). DNA comparisons are not proving to be the help to
Darwinism that was hoped. If chance is the author
of nature, why did it go to such lengths to make organisms look like
they were designed?
Next headline on: Bugs and arthropods.
Next headline on: Darwinism and evolutionary theory.
Meteorites Pose Puzzle for Solar System Age 02/22/2002
If their analysis of two major components is correct, the whole
idea about the chronology of the solar nebula can be wrong, said
Alexander Krot, associate researcher at the Hawaii Institute of Geophysics
and Planetology, reports the
Honolulu
Star Bulletin Feb 19. Whats the problem? Chondrules
and calcium-aluminum rich inclusions (CAIs) in two meteorites are hinting
that planets formed early on in the solar nebula: Originally, it was
thought the disk lasted 50 million years around the sun before planets
formed, he [Alexander Krot, associate researcher] said. That shrank
to 10 million years, and now people are talking about the solar nebula
lasting 1 million to 5 million years, he said. The researchers
suspect that the two types of materials, long thought to have formed at
different epochs, may have nothing to do with age, but with where they
were formed. The researchers dated the CAIs to 4.568 billion years,
published in the
Feb 8
issue of Science.
The thing to note in this story is not
the bluffing about ages, but the internal inconsistency of theories.
They cannot speak dogmatically about planet formation processes, because
their models are built on imagination. Planetary Scientist Edward
Scott at the HIG said, It has been a tough struggle, particularly
because we have to imagine whats happening. The
imagination is resting on philosophical assumptions about long ages and
evolutionary processes of planet formation. Alarm bells should
go off when they have to cram the process of planet formation into a timeline
one fiftieth what they were originally comfortable with. Planet
formation theory was already rife with problems of its own, and now
this makes it worse, similar to the
Cambrian explosion in biology and
the rapid formation of stars in the
early universe. Does this story give you any
confidence that the current imagination is any improvement?
Next headline on: Dating Methods.
Bacteria Survive a Big Squeeze 02/22/2002 Two kinds of bacteria continued to move and metabolize
while being squeezed between diamonds, according to a paper in the
Feb
22 issue of Science. The scientists watched them
wiggle and oxidize formate under 1.6 gigapascals of pressure, equivalent
to 50km deep in the earths crust, and act as if nothing happened
when returned to ambient pressure.
They conclude, Evidence of microbial viability and activity at
these extreme pressures expands by an order of magnitude the range of
conditions representing the habitable zone in the solar system. The
BBC News also reported this story.
In a related story from the
NASA
Astrobiology Institute, scientists found extremophiles living
two miles deep in a South African gold mine, munching on rocks without
benefit of photosynthesis. They estimate these bacilli divide
about once every thousand years and represent half the biomass of the earth.
While remarkable, these findings say
nothing about the origin of life on Europa or Mars, a subject which is
primarily the interest of the NASA Astrobiology Institute that supported
them. The authors in Science are within their bounds in
stating that
The pressures encountered at the depths of thick ice caps and
deep crustal subsurface may not be a limiting factor for the existence
of life. It would be a non
sequitur, however, to deduce that these locales have life,
or that life could originate there by chance. The capabilities of
life to deal with extreme environments require extreme engineering.
Time and chance are not engineers; they are the wrecking crew.
Next headline on: Origin of Life.
Plants Rate High in IQ 02/22/2002
According to Anthony Trewavas in the
Feb 21 issue of
Nature, plants deserve our respect: theyre pretty
darn smart.
For centuries, plants have been regarded as passive creatures.
Their development is thought to be predetermined, with only temporary
interruptions in response to stress. Because plants lack obvious
visible movement, they seem to be bereft of behaviour and
intelligence. Yet they dominate every landscape, representing 99%
of the biomass of the Earth. There is a clear conflict between
the commonly held view and the success of plant life. Only now
are we beginning to expose the remarkable complexity of plant
behaviour. A revolution is sweeping away the detritus of
passivity, replacing it with an exciting dynamic - the investigation of
plant intelligence is becoming a serious scientific endeavour.
Trewavas describes the many problems plants have had to solve
from their evolutionary beginnings. He provides examples
of plants that almost seem to be assessing their surroundings and
making decisions. He says that research into the field of plant
communication has exploded in recent years, then asks the question
if our concept of intelligence,
related as it is to movement, is adequate. Plants seem to
act smart in spite of the lack of a central nervous system.
How is such intelligent behaviour computed without a brain?
he asks. The challenge is set - remarkable years of discovery
lie ahead.
Is software intelligent?
Software applications in industrial robots and autonomous vehicles
can be pretty sophisticated. You could watch a pilotless
aircraft and conclude it was intelligent. Plants have some
of the most intricate hardware and software humans have ever
encountered, but that does not make them able to originate their
own code. The examples are interesting, but the author
honors
the creature rather than the Creator.
Next headline on: Plants.
Deep-Sea Extremophiles Eat Tungsten 02/22/2002
Bacteria found near deep-sea vents use tungsten instead of
molybdenum as a key metabolic nutrient, says the
NASA
Astrobiology Institute in an article From Lightbulbs
to Life. Tungsten has an extremely high melting
point (6192o F.). These organisms live at
temperatures at the sea-level boiling point of water.
A Princeton chemist comments about the substitute nutrient,
They have the capability of playing the same roles. What is
really interesting is that the rest of the proteins - which make up the
largest part of the entity - are not at all similar. Thus,
molybdenum and tungsten enzymes seem to point to a case of convergent
evolution. Nature picked related elements to perform similar
functions. ... Biology is very resourceful. You never know
exactly how Nature is going to compensate, how it is going to
replace one thing with something else
Evolutionists are magicians who are
experts at sleight-of-mind.
They invoke the spirit of Nature with a capital N, and wave their magic wand
of convergent evolution whenever Nature needs to do a trick.
Next headline on: Origin of Life.
Bewildering Complexity RNA Editing 02/21/2002
The Feb 22 issue of
Cell contains a paper by Alabama biochemist Stephen J. Hajduk
entitled Editing Machines: The Complexities of Trypanosome RNA
Editing. RNA editing is critical to the accurate building of
molecular machines like ATP synthase vital to cells. The author asks,
How many proteins does it take to edit an RNA?
Recent studies, using conventional protein
purification, homology modeling, and mass spectrometric analysis, have
focused on identifying the components of editing complexes. This
is an important yet somewhat bewildering exercise since at least a dozen
proteins have been identified that putatively contribute to RNA editing
in trypanosomes.
He describes how these proteins form editing complexes, and how RNA
strands pass through several iterations of editors on their way to the
protein assembly plant. In the last section, Increasing
complexities and unresolved issues, Hajduk states: As we begin
to understand the composition of the editing machinery, new
complexities emerge.
The author does not explain how evolution
could have built this machinery. He only notes that the machinery
is conserved (i.e., unchanged in many types of organisms),
suggesting that they had a common ancestor. Clearly, however, he
is bewildered by the complexity of the system. There is no need
to stuff the facts into an evolutionary box far too small for them.
Simply describe them and let people think.
Creationists, too, need to think about these issues.
This level of complexity is found in trypanosomes, which cause serious
blood diseases, including sleeping sickness. This fact is part of
the larger question of why there is disease, suffering and death in the
world today. Many organisms responsible for disease and suffering
show exquisite design.
Evolution explains everything as
competition for survival.
But why would a trypanosome
care whether it survives or not?
And how could such high levels of organization, involving
multiple interrelated parts (editing complexes; think about it),
arise without design?
On the other hand, if everything was designed,
did the designer intend for the suffering?
Intelligent design is sound science but incomplete philosophy; it needs
an answer to suffering.
We mortals may not understand all
the reasons, but Biblical creationism has a coherent answer. It
describes a world that was created perfect, but
was
cursed
temporarily because of sin. A
sovereign
Creator has the right to
punish and judge disobedience. The Bible clearly teaches God does so;
God
makes no apology for sending pestilence, disaster, and plague
according to His own will, though it grieves Him, and He desires all
people
to repent and be saved. The
original curse could have involved
modification of existing structures to become
agents of harm, as a constant reminder of the consequences of sin
and the imminence of death. Yet the Bible
also makes clear that God did not leave Himself without witness, showing
ample proof of His goodness (Acts 14).
What better proof than to send his only Son
to take the penalty we deserve? The mixed message
of creation beauty and suffering is deciphered in Christ.
You can
be reconciled
with your Creator at the foot of the cross.
Next headline on: The Cell.
Gene that Led to Insect Body Plan Alleged 02/21/2002
The Feb 21 issue of Nature contains two papers that speculate about how insect body plans,
with just three segments and six legs,
might have evolved from critters with lots of segments and legs.
Their experiments suggest that just a few DNA changes were sufficient to allow
early insects to lose limbs.
Evolutionary stories like this seem so
ridiculous in light of the emerging vistas of cellular complexity
coming to light (see next headline for example). This latest theory
is about a loss of structure, if anything (fewer limbs), not a
gain of information. What about all the other new structures that
characterize insects: wings, compound eyes, guidance and control systems,
and countless other autonomous robotic subsystems? Number of segments
and number of legs is nothing compared to these hurdles for evolution to
explain without design. The Hox genes studied in these
papers are interesting, but they are only like master control switches
during development. Like if-then routines in software, they do
not write code, but just direct how existing code functions.
Next headline on: Bugs.
Next headline on: Darwinism.
Presto! Prestin Wins the Gold in Molecular Motor Race 02/21/2002
A new type of molecular motor, which is likely to be of great
interest to molecular cell biologists has been discovered.
Named prestin,
this protein motor, made up of 744 amino acid units, is a speed demon,
ferrying negative ions across cell membranes in millionths of a second.
It appears to function as part of the mechanical amplifier in the cochlea,
helping the ear to achieve its remarkable sensitivity and frequency
selectivity.
Nature Molecular Biology Reviews describes the
unique features of this biological machine:
Prestin is a new type of biological motor. It is entirely
different from the well-known and much-studied classical cellular
motors in that its function is not based on enzymatic processes, but on
direct voltage-to-displacement conversion. The action of prestin
is also orders of magnitude faster than that of any other cellular
motor protein, as it functions at microsecond rates.
Prestin has an external voltage sensor that causes it
to respond. Its action apparently mediates changes in length of the
outer hair cells of the cochlea, greatly amplifying the responsiveness
of vibrations reaching the inner ear. The illustration in the article
shows how the cochlear amplifier works to provide variable, automatic,
amplitude-dependent response. The gain on
low-level signals can be 1000-fold, but intense signals are not
amplified. This allows the brain to hear very faint signals but not
get saturated by loud ones.
Update 02/26/2002: A paper in the
Proceedings of
the National Academy of Sciences describes prestin further and finds
that it is dependent on regulation by thyroid hormone.
Interesting that other cellular motors
are called classical: the whole field of molecular motors is
almost brand new. Every time a motor is found in living
cells is cause for astonishment. There are hundreds of them.
This one goes directly from voltage to force, without requiring other
enzymes. If it is true that prestin is crucial in the inner ear amplifier
system, it is another one of a host of finely-crafted parts that enable
us to hear, by converting mechanical waves in the air to
electrical signals sent to the brain.
Sound begins as miniscule
pressure waves in the air. These are first channeled by the outer ear
into a tunnel, where they
set up vibrations in the eardrum, then are transmitted mechanically
through three lever-action bones to the inner ear, then are amplified by hair
cells in the cochlea (each responding to its own characteristic frequency),
which open and
close ion channels that send electrical pulses down the auditory nerves.
The brain, then, sorts out all this information to determine frequency,
amplitude, direction, and meaning.
Delays in hearing could be dangerous.
The rapid response of prestin and all the other components of our amazing
sound system helps us to hear in real time.
Scientists are just now beginning to understand the details of operation
of the long-mysterious cochlea, with its keyboard-like rows of inner hair
cells and outer hair cells that expand and contract in perpendicular
directions. It is far more wondrous than we could have imagined; who
would have thought it included direct-drive motors with microsecond
response?
See also our Feb. 7 headline on this subject.
Next headline on: The Cell.
Next headline on: Human Body.
Next amazing story.
Human Brain Not Bigger than Ape Brain 02/20/2002 Its not the volume, but the wiring,
claims a new study in Nature Neuroscience, summarized by
Scientific
American. A team from the University of California at
San Diego studied MRI scans of 24 monkeys and apes and 10 humans, and
found that the frontal cortex, the supposed seat of human wisdom and
understanding, was not proportionally larger than expected for a
primate of our stature. This undermines evolutionary theories
that an enlargement of the frontal lobe is what gave early humans
the capacity for increased cognition and intelligence.
It is simplistic to assume that the size of
the bucket is a measure of the quality of the contents. None
other than evolutionist Stephen Jay Gould in The Mismeasure of Man
has berated early evolutionists for using brain size as a judge of
intelligence. Time to revise the TV documentaries (again):
A lot of the story is entirely unknown, and the
results of a
new study suggest that some of what scientists thought they knew may
actually require revision (emphasis added).
Well Ill be. Shazam.
Next headline on: Early Man.
Are Creationists a Small Minority Threatening School Science? 02/19/2002
Rodger Doyle in Scientific
American claims creationists are changing school standards although
being a small minority.
Answers in Genesis
responds that Scientific American is guilty of distortions and
perpetuation of myths in its story.
Doyles report has a color-coded map of
United States evolution-teaching standards that is interesting (interpret
with caution). Read both sides and think
critically.
Next headline on: Schools.
New Dinosaurs Raise New Questions 02/18/2002
Paul Sereno, dinosaur hunter, speaking at the
American
Association for the Advancement of Science last week, surprised
participants with descriptions of exotic new dinosaurs his team has
uncovered in Niger, including super-croc, tiny
duck
crocs, and a 45-foot fern-mowing
sauropod with 1000 needle-shaped teeth. He claims the fossil
record of dinosaurs has been transformed in the last decade, but
mysteries remain:
Why did it take 50 million years for dinosaurian
predators and herbivores to reach their maximum body size but mammals
only a handful? he asked. And, why is there so much
empty ecospace during the Mesozoic, in comparison to mammals during the
Cenozoic? Where are the burrowers, the climbers, the aquatic
specialists?
The answers, Sereno suggested, lie in the posture and
body size of early dinosaurs and the constraints these imposed on all
subsequent evolution. Computer simulation of the fragmenting
dinosaur world, Sereno says, will help us unravel the large-scale rules
at work.
Sereno also showed a wishbone from a primitive carnivore which he
claims establishes an evolutionary link between dinosaurs and birds,
even though the bone played a very different role between them.
The word primitive has embedded evolutionary assumptions.
The primitive carnivore, like every other creature, was a
highly complex animal well
adapted to its habitat. If it had a wishbone for a very different
role than used in birds, only faith makes it an evolutionary link to
birds.
Left unexplained are the many differences, such as scales v. feathers, and
the totally different lung design between reptiles and birds,
a difference that molecular biologist
Michael
Denton has described as an
unbridgeable gap for gradualistic evolution (each step needing to provide
more fitness than the prior model).
What Sereno has showcased is a variety of interacting,
well-adapted creatures with remarkable diversity. But there is more
diversity today between insects than between dinosaurs. Diversity
is not evolution. The fitting together of these bones into a
family tree is a belief imposed on the evidence, as illustrated by
Serenos unanswered questions. Sereno presumes they will be answered
by studies of body size and posture of early dinosaurs. But why
would body size or posture constrain evolution? There is a wide
diversity of sizes and postures in every group of animals today; if size
or posture were constraints, would not fitness favor extremes? If
not, does evolution explain anything at all? The idea is
self defeating.
The computer modeling Sereno advocates cannot substitute for
field observation. As we have seen before, such computer modeling
is usually built on a priori assumptions of evolution, then used
to demonstrate evolution. Thus it is a case of
petitio principii.
The observational facts of diversity and adaptation cannot be
claimed as exclusive properties of evolutionary theory.
Next headline on: Dinosaurs.
Window for Life is Narrow, Claims Astrobiologist 02/18/2002
Norman Pace at the
University
of Colorado at Boulder, renowned astrobiologist and recent winner of
a genius grant from the MacArthur Foundation, said at the
Boston AAAS meeting this week that the best chances to find life beyond
earth are outside our solar system. Neither Mars or Europa look
promising, he feels.
Pace knows a lot about organisms that can
survive extreme environments on earth, but no one knows that life exists
anywhere else. Like many astrobiologists, he defines life in terms
of evolution: he speaks of the intrinsic fragility and complex
organic systems coupled with the powerful force of natural
selection.... The fragility and complexity of life are
unquestionable.
Natural
selection, however, is not a powerful force. It is not a force
at all. Whoever believes natural selection can create life and
evolve it into sentient beings is engaging in the fallacy of
chance
of the gaps.
Next headline on: Origin of Life.
Next headline on: Solar System.
Renowned Inventor Calls Pastors to Preach Against Evolution from the Pulpit 02/17/2002
Exclusive
Dr. Raymond V. Damadian, our featured creation scientist
of the month, sharing his testimony at Frazier Park Evangelical Free
Church in California, described how prayer played an essential role in
the development of the MRI scanner. Founder and president of
Fonar Corporation,
Dr. Damadian told how he had grown
up convinced of evolution until he began reading creation evidences in books
such as those by Henry Morris. He
turned his final comments toward pastors:
The battle of the beginning, as
John MacArthur calls it and
our theologians cannot run from it. They need to learn this
evidence and preach it from the pulpit. The Battle for the
Beginning is not the property of the scientists.
The prior evening, Dr. Damadian was featured
speaker at the annual George F. Howe Creation Symposium at
The Masters College.
He described the development of Magnetic Resonance Imaging (MRI), the
invention that earned him entry into the National Inventors Hall of Fame.
He explained how it works, and shared the prospects for the near future, when
surgeons will be able to precisely target therapeutic agents directly
to cancers while working in
MRI Operating Rooms which
Fonar Corporation has recently developed. But Damadian spent a good
deal of time also describing creation evidences that have convinced him of
the absolute authority and trustworthiness of the Bible. He said that,
putting it gently, evolution is a fraud and that an
undevout scientist must be mad. He reprimanded
Christians who have never read the Bible cover to cover, stressing
that reading it all, without qualification, is essential to understanding
its true sense and full message.
Next headline on: The Bible.
Early Man (and Theory): Evolve or Perish 02/15/2002
Just as early man had to adapt to changing climates rapidly to survive,
theories of the evolution of early man are also evolving quickly, but
not in any particular direction. In two News Focus articles on
Becoming Human in the
Feb
15 issue of Science, Michael Balter discusses current controversies
about what
distinguishes humans from apes. The longer article,
What
Made Humans Modern? reaches no conclusions but just watches the
political football game that modern anthropology has become. Cambridge
anthropologist Daniel Lieberman thinks skull and face shape are the
defining characteristics of modern humanity, but others retort that the
first signs of culture and intelligence come tens of thousands of years
after anatomically modern humans appeared.
Some think a few genetic switches made the difference, others
argue that many changes had to take place. Some think changes had
to be slow and gradual (evolutionary), others propose human intelligence
experienced a big bang (revolutionary).
Some think modern man arose out of Africa, others think
humanness arose in different parts of the world simultaneously
(heres one
claiming Europe as the seat of human evolution.
Some trust the molecular clock, others dont. Some think
Neandertals were brutish, some think they were as smart as modern humans.
It seems every idea has its critics, every solution breeds new problems,
and each new discovery overturns previously sacred beliefs.
Balter covers the fruitcake with this frosting: There may be few
sure answers so far, but one thing seems certain: Sometime during the
last 200,000 years or so, evolution blessed us with the wisdom to ask
the questions.
Balters second article in the same issue,
Why
Get Smart? discusses the theory of some anthropologists that
intelligence evolved in response to rapid climate changes.
To us humans, it may seem that smarter is always better. But only
once in the history of life on Earth did natural selection favor the
evolution of brains sophisticated enough to send people to the moon,
paint the Mona Lisa, or wonder about their own origins. However
that evolution unfolded ... most anthropologists think that advanced
human cognition was no evolutionary accident but an adaptation to a
challenging environment.
Balter discusses Richard Potts theory of variability
selection, the emergence of capabilities to deal with rapidly
changing environments. He quotes Steven Pinker, The minds
of our ancestors were not hardwired with specific strategies for felling
mastodons but with more general categories....
Balters concluding line from the
first article easily qualifies for Stupid Evolution Quote of the Week:
There may be few sure answers so far [understatement], but one
thing seems certain [name anything that seems certain in the article; if
the observations are contradictory, how can the conclusion be certain?]:
Sometime during the last 200,000 years or so [plus or minus 195,000
years],
evolution blessed us with the wisdom to ask the questions.
Good grief; what is evolution, a
goddess?
Do you see what is going on here?
Lack of evidence is juxtaposed with authoritative pronouncements.
We spend some time on this News Focus series in Science (see also
next headline) to point out the contrast between the vacuum of evidence
and the almost ex cathedra authority with which these scientists speak.
Here we are, almost 150 years beyond Darwins Descent of Man,
and paleoanthropology is still at square one.
But in spite of this fact, evolutionary anthropologists speak out of
both sides of their mouths to mislead and confuse. On one side they
moan and groan over the paucity of evidence and all the contradictions.
On the other side, they speak with glib naïveté about how humans evolved,
assigning godlike powers to climate or skulls as if they can produce brains
capable of abstract reasoning and building rockets to the moon.
Evolutionists have something better than God to work their miracles:
chance!
So convinced are they that humans evolved from
animals, despite the utter lack of
evidence, that all this cognitive dissonance is viewed as normal.
It wouldnt occur to them in their wildest dreams to consider that
God created man for a purpose, even though that is what the majority of
Americans believe. No, that would not be scientific.
See our Baloney Detector on the Best-in-Field
Fallacy.
When creation has been ruled out from the starting gun, and all you have on
the track are the lame, the blind and the disoriented, then
any one of them that is ahead an inch at the moment is by default
the reigning world champion.
Next headline on: Early Man.
Next dumb story.
Into the Trash: Old Ideas About Early Man 02/15/2002
The Feb. 15 issue of
Science
Magazine has four articles on early man. One State of the
Disunion address by Ann Gibbons,
BECOMING
HUMAN: In Search of the First Hominids,
describes the disarray in which paleontologists find themselves because
of new findings that are challenging old views (emphasis added):
The first surprise is that more than one type of hominid may have been
living between 6 million and 5 million years ago and that these very
early hominids show diversity in their teeth and anatomy. That
suggests a period of hominid evolution even earlier than most
researchers have believed and also prompts questions about how reliably
the molecular clock is calibrated ...
Into the trash, in fact, may go
the very definition of what it means to be a hominid, as there is now
little agreement on what key traits identify an exclusively human
ancestor. Nor is there agreement on which species led to Homo, or
even whether the fossils represent different species or variation
within a single species. Preconceptions of a large-toothed,
fully bipedal, naked ape standing in the Serengeti 6 million years ago
are X-Files paleontology, says [Berkeley anthropologist Tim]
White. What were learning is we have to approach this
fossil record stripped of our preconceptions of what it means to be a
hominid.
Gibbons describes how the two-decade reign of Lucy as first
hominid is over, and how the origin of bipedalism may have to be
described as yo-yo evolution in the words of Martin
Pickford of France. The caption of a new proposed timeline
says, Who begat whom? Researchers have a new view of hominid
diversity through time, but the picture is full of question
marksindicating uncertainty about dates, classification, and
lines of descent. The spate of recent finds like
Kenyanthropus, Millennium Man, Chad Man, etc. (follow the
Chain Links on ApeMan) are either contradictory or describe not an
evolutionary tree but a branching bush. The diversity between
the putative ancestors appears from the very beginning.
Moreover, it appears
that some ancient apes may have been bipedal, removing a long-held
defining criterion of hominids. Bernard Wood of George
Washington University tells his students, Im sorry, but
I dont know how to distinguish the earliest hominid from the
earliest chimp ancestor anymore.
The article tries to keep
an optimistic tone about what might turn up, but clearly these
statements are damaging.
Anyone who has faith that paleoanthropologists have any credible story
of mans descent from ape-like ancestors should read this article by
Marvin Lubenow
who has followed reports of human evolution for over 20 years.
The situation is worse now. Todays article basically says,
(again), Everything you were taught in school and in
National Geographic and on the Discovery Channel is wrong.
Paleoanthropologists are
farther away from a solution than they were two years ago.
Heres our solution: turn around, and repent of this
thine evolutionary storytelling. Instead, look at recorded history,
and thou shalt find who begat whom.
Lukes
genealogy, derived from
Genesis
4 and
10 fits the observations perfectly
by omitting conjured-up speculations about ape in our ancestry:
... Enos, which was the son of Seth, which was the son of Adam,
which was the son of God.
Next headline on: Early Man. (See also
next headline.)
Evolutionary Anthropologists Stretch Their Dates 02/15/2002
A million here, a few million there, pretty soon it adds up to real
money, Senator Everett Dirksen used to say. Paleoanthropologists
seem to have the same flexibility with their timelines as politicians
do with our tax dollars, the way Ann Gibbons describes molecular dating
in the Feb
15 Science, in a news focus entitled,
BECOMING HUMAN:
New Fossils Raise Molecular Questions. Evolutionists have
clung to a theory that humans and chimpanzees last shared a common ancestor
about 5 to 7 million years ago (emphasis added):
But with paleontologists uncovering two or more hominids already on
different evolutionary paths by about 6 million years ago ... some
researchers say that the timing is getting too close for comfort.
By molecular reckoning, before 7 million years ago there shouldnt
even be a clear hominid lineage. That raises the
question: Has our molecular clock been correctly
calibrated? asks Phillip Tobias of the University of the
Witwatersrand in Johannesburg, South Africa. For now,
theres enough fudge in both kinds of data to make a consistent
scenario, but some geneticists are reviewing their calculations.
To help provide more time, Swedish geneticist Ulfur Arnason thinks he
can push back the ape-man divergence point to between 10.5 and 13.5
million years ago.
The key word here is fudge.
Its Skinners Constant in action: that quantity which, when
added to, subtracted from, multiplied or divided by the answer you got,
gives you the answer you should have gotten. Apparently
evolutionists have enough fudge ... to make a consistent
scenario which translates, enough pure faith to maintain
their a priori assumptions. This article makes it
clear that molecular clock dating is based squarely on evolutionary
assumptions of when animals diverged, making it a classic case of
circular reasoning, using evolution
to prove evolution. We reported a paper in the Proceedings
of the National Academy of Sciences on October 10 that
molecular dating is unreliable.
Next headline on: Dating Methods.
Animal Sex Is War, Not Love 02/14/2002
Just in time for Valentines Day
is a story to take the romance out of your relationship:
sex evolved as a battle. A press release at the
University
of Toronto, based on a paper in the
Feb 14
Nature by
Swedish
researchers, explains that the battle of the sexes led to
an evolutionary arms race, with males evolving means to subdue
the females, and females retaliating with means to resist the
males (has anything changed?). They use the example of
water striders whose males have hooks on their antennae to
hold onto the female, while the female has spines to hold him
at bay. One of the researchers explains,
Males of most animal species benefit from mating often with as many
partners as possible while females, who are already mated, lose from
mating too much. Males, therefore, seek to convince
females to mate while females evolve resistance measures to foil the
males mating attempts.
The press release admits, however, that Such arms races are,
however, very difficult to study. ... The fact that the male and
female adaptations counterbalance each other means that the underlying
conflicts often remain hidden. Thus, while both sexes may be
frantically battling in an evolutionary sense, their match essentially
remains at a standstill.
Lets stop putting human emotions
into insect heads, shall we? Water striders could not care less
about the benefits of sex, strategizing, or convincing potential
partners. They dont care about anything. They just
do what comes naturally, like little robots. Evolutionary theory
has a story for everything: sexual dimorphism and monomorphism,
brilliant colors and dull colors, struggle and acquiescence, selfishness
and altruism. Has it really explained anything at all?
Next dumb story.
Happy Valentines Day anyway. Practice some love and
altruism.
Another Dino-Bird Missing Link Found 02/14/2002
A news release from the
Field
Museum of Chicago claims that a small chicken-size dinosaur named
Sinovenator found in
China is the missing link between dinosaurs and birds. The fossilized
bird probably had feathers and is about the same age as
Archaeopteryx. The find is published in the
Feb 14
issue of Nature.
Update 03/07/2002: in the
March 7 Nature,
scientists claim to have found another Dromeosaur fossil with
pinnate feathers identical to those on birds. This came from
the same Liaoning area of China where similar finds have been
alleged. The authors claim this shows feathers evolved
before flight.
Always separate the facts from the
interpretations. The bones are the facts.
The dates and ancestries are interpretations. Note that word
probably about the feathers. Even though the artwork shows
them, none were found. The scientific paper is more cautious than the
press; it just states that a few bones are bird-like, and that it is the
oldest known troodontid dinosaur. The article admits the phylogeny
of the troodontids is hotly debated, and attributes some of the debatable
features to the evolutionary trick card convergent evolution.
What may be just as important about this story
as the claims, is what is not said, or what will be disputed, or
found out later. Evolutionists have been known to exaggerate.
Next headline on: Birds.
Next headline on: Dinosaurs.
Next headline on: Fossils.
State of the Evo-Devo Address 02/14/2002
Wallace Arthur in a review article in the
Feb 14 Nature
reports on The emerging conceptual framework of evolutionary
developmental biology (evo-devo for short). Evo-devo is
a hot new area of evolutionary research, concerned with the relation
of the developing embryoits pathways, including epigenetic
influencesand classical Darwinian selection, which operates
at the phenotype level. Evo-devo represents a confluence of sorts
between geneticists, embryologists, and evolutionary biologists, who have
tended to be somewhat isolated. Their enthusiasm revolves primarily
around the discovery of highly-conserved developmental genes (homeobox
or Hox genes) that control major body plans; this was highlighted
in the PBS TV series Evolution as a promising answer to a fundamental
mystery in evolutionary theory: how do major changes in body plans occur?
So how is evo-devo doing these days? Arthur examines
in detail two of five major
areas of conceptual debate among evo-devo biologists: (1) Developmental
reprogramming and bias: i.e., the path from mutated gene to altered
mature organism, what he calls a mutationally driven change in
something that is itself a state of change, but cautions that
this concept needs to be interpreted carefully, taking into account
epigenetic factors (factors beyond just genes that can influence
development). (2) Co-option and paramorphism: i.e., whether
existing genes or gene cassettes can be recycled for other
purposes (co-option) or modified into new structures (paramorphs).
(Neither of these concepts is supported by much experimental work, Arthur
confesses.) He asks whether evo-devo is approaching a synthesis, but cautions that
there is still much we dont understand and much work to do:
In other words, we should attack the problem at both endsits
origins in terms of mutation and reprogramming within species, and its
long-term results, manifested as accumulated evolutionary divergence
over hundreds of millions of years.
The impression reading this is that
evo-devo biologists really know very little at all. Evo-devo involves
generalized concepts only, with no rigorous testing,
and arguments on both sides of every point. Like most evolutionary theory, it is a patchwork of just-so stories connected at a few isolated
points by observation, shrouded in jargon that sounds impressive, but
signifying nothing you can grab onto.
It is so slippery, it explains convergence and divergence, stasis and
rapid change. Whenever something puzzling is found, appeals are
made to the magic words convergent evolution and selection,
or another hypothetical concept is introduced.
There is the usual lament that much is poorly understood and more rigorous
testing needs to be done (which never seems to show up). Should
anybody have confidence in this group of blind guides?
Evolutionists often reply that Well, at least we
are trying to understand it by scientific means. They fail
to recognize that their primary assumptions might be flawed, and they
are hopelessly wandering in circles or in the wrong direction, and will
never get closer to a solution until they turn around.
Its interesting to note that Arthur calls Haeckels famous 1866
biogenetic law wrong (or, if partly true, only in a very
general way, not in the details of his popular but faked drawings).
But Haeckel with his
catchy phrase Ontogeny recapitulates phylogeny was the father of a
then-accepted
evo-devo paradigm that has since fallen into disfavor.
We are not building on Haeckels progress, therefore; its like
starting over. But there
is no basis for confidence that history is not repeating itself here.
Everywhere we look in genetics and development, we see complexity on a
vast scale. Trying to force-fit these wonders into a mindset of
chance and purposelessness appears doomed from the starting assumptions.
In a hundred years, will biologists be looking with the same scorn at
todays paradigm? Not all motion is progress; it might just
be commotion.
Next headline on: Darwinism. Answers in Genesis posted
a response to the claims the Hox genes demonstrate evolution.
See also a recent article by
William
Dembski on why natural selection cannot create anything.
Navy Wants to Know: How Do Animals Excel at Lift? 02/14/2002
Certain fish and insects seem to be masters of efficient lift, and
the Office
of Naval Research wants to learn from the gurus.
What do the hawkmoth, the fruit fly, and the bird-wrasse fish all have
in common? Over millions of years, each of these animals seems to
have figured out how to achieve high-lift in their respective medium
.... quickly, and with more stability and less heave, pitch, yaw,
torque, drag and cavitation than man-made machines have yet been able
to approach. The Office of Naval Research wants to know how they
do it.
The secret: just sit around for millions of
years. Time works all miracles.
Next headline on: Fish. Next headline on: Bugs.
Doctors Orders: Get Off the Sofa and Get Active 02/13/2002
The generation following
The
Greatest Generation is fat and lazy, says the
American Physiological Society Raised on TV, obese, lethargic and addicted to
pleasure, they are crippling their own health and that of future
generations. Primary care physicians need to be the first line
to play drill sergeant: Get off the sofa and get active!
Theres nothing on TV worth
watching anyway. Go take a hike.
Next headline on: Health.
Article 02/13/2002: On the
Discovery Institute website,
senior fellow David Berlinski
has an article for the March 1 issue of
Discover
magazine entitled
Einstein
& Gödel.
Berlinski compares and contrasts
the German physicist and the German mathematician whose lives became
intertwined in common interests but different priorities and
personalities, and whose theories changed our modern perceptions of
space and time. Berlinski describes Kurt Gödel as a neo-Platonist
who believed the world was rational, and a theist who rejected evolution
and believed in an afterlife. He dismissed the Darwinian theory of
evolution, Berlinski claims, and declared flatly that
materialism was false.
Next headline on: Physics.
Rotating Gate in the Cell Membrane a Beautiful Design 02/12/2002
Another
gateway into the cell has been explored, and its a beauty,
say the three biochemists who describe it in the
Proceedings of
the National Academy of Sciences Feb 12 online preprint.
This one is called KcsA, a potassium
ion channel that
is critically important for nerve impulses in humans, but also is used
by bacteria. KcsA is one of many
membrane
proteins that are subjects of intense scrutiny by biochemists.
It is so effective, it can let in 10,000 potassium
(K+) ions for every unwanted sodium ion (Na+), even
though sodium ions are smaller but have same charge.
How the
KcsA
channel does this was a surprise. Apparently,
four helical rod-shaped parts rotate clockwise in such a way as to keep
parts of the gate rigid while allowing other parts to flex. To picture
this in a simplified way, visualize four chopsticks hanging vertically,
forming a square looking from the top down. Each stick has a pivot
point about 1/3 of the way down, allowing it to rock. The bottom ends
of the sticks are bundled together in the shape of an inverted teepee,
in such a way that as each stick pivots,
the bottoms trace out a circle. Moving in concert, they cause a
rotary motion that allows the potassium ions funnelling into the stiff
upper part, the selectivity filter wide berth as they exit into
the interior of the cell. The selectivity filter, like a one-way
ID-checking turnstile, attracts positive potassium ions but keeps unwanted
molecules out.
The authors explain how only a clockwise rotation allows
the gate to work. They did not state the rotation rate of the
gate, but it must be phenomenal; the throughput of KcsA is an
astonishing 100 million ions per second, very near the diffusion limit.
The authors apparently could not help expressing a little awe in their
otherwise straightforward scientific paper; they used the word design
twice: The interplay of the two pivot points is a beautiful design
by nature for solving the gating problem of KcsA, and
The swinging rotational motion of TM2 helices with two pivot
regions is an exquisite design by nature to ensure an effective
gating of KcsA without having to loosen up the structural integrity
near the intracellular side of channel in the open state.
Its hard not to gasp at what
scientists are discovering every week in cellular biology. Who
would have thought that your muscles, nerves, and brain functions are
made possible by such wondrous mechanisms as these? Who can
continue to believe that such molecular motors and machines could ever
self-organize without intelligent design?
Next headline on: The Cell and Biochemistry.
Next amazing story. See also a related
story from Jan 16 about the chloride channel.
Dino Vomit Found 02/12/2002
To some people at least, what a dinosaur barfed is interesting.
Reuters News Service
reports that English paleontologist Peter Doyle found the fossilized
upchuck in a quarry and claims it regurgitated from the mouth of an
ichthyosaur 160 million years ago, making it the oldest dinosaur vomit yet
found. See also this summary in
Nature Science
Update.
One of our readers asks perceptively,
How would it have remained intact, not decomposed and flushed away
by rain and wind? (Try an experiment next time you
call Ralph at the beach.)
Next headline on: Dinosaurs.
Next headline on: Fossils.
Saturn Described as Lord of the [Young] Rings 02/12/2002
Science @ NASA
says that Saturns rings are still a mystery 400 years after their
discovery. Jeff Cuzzi, planetary scientist, says there are two
reasons they cannot be as old as the solar system: (1) they are too bright
(interplanetary dust should blacken them over time), and (2) they would
have spread out by now due to exchanges of angular momentum between the
inner moons and the ring particles. This is a young dynamical
system,
he explains. He suggests they might have formed a few hundred million
years ago by a collision of asteroids, or from a wandering moon that
traveled too close. A few hundred million years from now, they
will be gone. The article muses, We can only be sure that
Saturns rings are lovely now. And if they are indeed fleeting,
as such ages are reckoned for stars and planets, their short life makes
them even more wonderful.
Actually, the situation is more difficult
than this article describes. There are other forces working
to disrupt the rings on time scales much shorter than the assumed age of
the solar system. Gas drag is drawing the inner particles in, while
micrometeorite impacts and sputtering by atomic particles are blasting
them away. Sunlight pressure (the Poynting-Robertson effect) should
have caused many of the particles to spiral into the planet by now.
100 million years sounds like a long time, but it is only one fiftieth
the assumed age of the solar system. Other estimates have put the
age of the rings at an upper limit of a few tens of millions of years, or
a few hundred thousand years, or less.
The particles in Jupiters rings are the size of
smoke dust. They would
quickly be obliterated if not continuously fed by the inner moons Metis and
Adrastea, but that supply cannot last forever either. The rings of Uranus
and Neptune are also tenuous and short-lived. These facts do not
prove the solar system is young; they are just additional hurdles that
planetary scientists have to overcome, concocting improbable ad hoc
scenarios to maintain their sacred parameter that the solar system
is 4.5 billion years old. Maybe some day when enough anomalies
prove intractable (comets, Ios volcanoes, lunar recession, as
possibilities), a planetary scientist will arise with enough courage to
question the sacred parameter itself.
Next headline on: Solar System.
Next headline on: Dating Methods.
Why Snowballs Feel Cold 02/11/2002
Scientists have found a new skin receptor that senses cold,
but it may just be the tip of the iceberg, says
Nature
Science Update. According to two new studies, there may be an
entire class of previously unknown receptors that open ion channels in
nerve cells to give us the sensation of temperature. One researcher
called this totally unknown and extremely interesting.
Nature describes the effect of these receptors: A snowball
in the face or a chilly breeze around the ankles opens a molecular trap
door in our skins nerve cells. The article concludes,
Like any well-engineered system, the bodys temperature-sensing
network almost certainly has back-up mechanisms. Says [Arthur]
Craig [physiologist at Barrow Neurobiological Institute, Phoenix]:
Biology is based on redundancy - the teams are probably
just working on different parts of the problem. We can be
sure that the biology is more complex than either study, he
adds.
Notice the phrases well-engineered system and back-up
mechanisms. This is the language of intelligent design.
Evolutionists are schizophrenic. On one side of their brain they
marvel at the engineering. On the other side they say there is no
Engineer. They want it both ways. Sorry.
Next headline on: Human Body.
Next amazing story.
Europas Cracks Hint of Tides, Life 02/11/2002
Richard Greenberg of the Lunar and
Planetary Lab of the University of Arizona at Tucson writes in
SpaceFlight Now
that Jupiters moon
Europa might have
the conditions that favor
evolution of life. The tidal forces that have riddled the moons
surface may hint at warm water that approaches the surface.
The combination of tidal processes, warm waters and
periodic surface exposure may be enough to not only
warrant life but also encourage evolution, Greenberg
said.
Observation: cracks in a moons
surface. Conclusion: life. Fascinating.
Next headline on: Solar System.
Next headline on: Origin of Life.
Third Eye Sets Biological Clock 02/08/2002
A third light-detecting mechanism in the eye, independent of rods and
cones, has been discovered, reports
Feb 8
Science. The cells and their photoreceptors appear to
send their signals to the brains clock that governs circadian
rhythms and day/night cycles. The surprising finding is the
culmination of a burst of papers published in the past 2 months
that resulted in two reports in the current issue. The system
responds primarily to the luminance, or brightness, of the light,
rather than the details of an image, as do the rods and cones.
The scientists
believe this new light-detection system not only affects the bodys
biological rhythms, but also controls pupil constriction and emotions:
The impact of this light-sensing system may go far beyond
pupil size and the clock. In humans, light levels can modulate
mood and performance. This photoreceptor system may be
incredibly important in our general physiology and well-being,
says [Russell] Foster of Imperial College, London.
The study of
biological
clocks is just coming into its heyday. The field is not
getting any less complex. If scientists are just now finding
about new eyes, what other wonders remain to be discovered?
Next headline on: Human Body.
Next amazing story.
Dinosaur Bones Abundant in Arctic 02/08/2002
Finding dinosaur bones in the frozen north is a job for
Roland Gangloff
of the Alaska Museum, who says, These dinosaurs were doing
quite well in high latitudes in both hemispheres 110 - 65 million years
ago. They were well adapted and the evidence is so overwhelming
it cries out to be understood. His paper published in the
Feb 8
Science puzzles over how allegedly cold-blooded creatures
survived in such a habitat. He sees deposits along the Colville
River as most promising for research.
There have been reports of
unfossilized
dinosaur bones found in Alaska, some even with
blood protein
traces in them that should long have decayed. If true, they could
not be
as old as claimed by evolutionary theory. Keep your eye on the
anomalies, not on the conventional wisdom, which assumes
evolution and geological time scales.
Next headline on: Dinosaurs.
Next headline on: Fossils.
Next headline on: Dating Methods.
How Your Ear Electronic Organ and Mixing Console Works 02/07/2002
The cover article in the
Feb 8 issue of Cell
describes a new motor found in your ear. Inside the ear is a very
complex and sophisticated system that, for all practical purposes, can
be described as an electronic organ and mixing console. Have you
ever been at a meeting where the sound system went berserk and feedback
sent a shriek through the room? Well, the ear has a mechanism to
prevent that, and a motor called myosin is apparently involved, according
to Jeffrey R. Holt
and a team of eight cell biologists.
The inner ear needs to
convert (transduce) mechanical signals to electrical signals
pressure waves in the fluid of the inner ear to nerve pulses that go
to the brain. The way it does this is to use hair bundles
of about 50 hairs that look for all the world like organ pipes (a picture
is on the cover). These hairs are tied together and bend over in
response to vibrations (sound). This bending opens up channels in
the cell to which they are attached, allowing electrical ions to flow in
and start nerve signals. This is the act of transduction.
But there has to be a way to shut off the flow or tame it down, else you
would have a stuck note: a flood of irritating messages hitting the brain.
Thats where adaptation comes in. The
ear has two kinds of adaptation: fast and slow, and they involve very
different mechanisms. In fast adaptation, a calcium ion enters the
channel and blocks the flow; this happens within a few thousandths of a
second. A few tens of milliseconds later, slow adaptation kicks
in. In this process, a motor climbs up the hair cells and adjusts
the tension of gating springs and relaxes the tension so
that the ion channels close.
These scientists proposed myosin-1c, a member of the
the myosin superfamily of motor proteins, as the probable motor that
climbs up the actin filaments.
Their diagram
shows actual springs (not that they are like metal springs we know,
but proteins that function like them) with myosin-1c like a little
ratchet motor that can climb up the hairs and adjust the tension in
the springs, to relax the hair and close the channel. In effect,
the myosin acts like a mixing board operator with his fingers on sliders,
adjusting the volume level on each line. ... only even more elaborate,
and quicker. Another analogy would make this like an automatic
compressor-limiter.
And this study was done on mice, turtles
and bullfrogs. Human ears are no less wonderful; probably more
so. When you listen to speech or music, two million of these
hair cells go into operation, with the mixing console adapting to
intensities of 10 billion to one. You can distinguish up
to 300,000 pitches, far more than needed for mere survival, but
abundantly adequate to enjoy music.
The motorized compressor-limiter described by these
scientists is just one part of an elaborate system that converts nearly
infinitesimal pressure waves in the air into the joy of music.
Inside your head right now is one of the most complex and sophisticated
sound systems imaginable: a combination microphone, electronic organ,
mixing console, sound processor and stereo receiver, all automatic, all
self-adjusting,
able to respond to a jet takeoff or the footsteps of a cat, able to
pick out a familiar voice in a crowd, able to pinpoint the direction of
a sound, all self-servicing for up to a lifetime. Dont be
deaf to the shouts of Design!
Next headline on: Human Body.
Next amazing story.
Macroevolution Demonstrated? 02/07/2002
Scientists at
UC Davis,
publishing in the upcoming issue of Nature,
claim to have discovered how major changes in body plans
take place. They describe how mutations in regulatory
genes during embryonic development could change a multi-legged
arthropod into a six-legged insect-like body plan.
They claim this answers the arguments of creationists that
macroevolution has never been observed, and that it would be
too improbable to get major leaps in evolutionary change.
The evolutionists are overplaying their card.
Read this brief response by
Don Batten that
Hox genes are not macroevolutions savior. They only
switch on functions; they do not create them.
Read also this paper by Wells and Nelson
that each mutation has to contribute not just novelty but
improved fitness to be heritable. The PBS Evolution
program pushed this idea of rapid transformations; for responses
see Answers
in Genesis and Discovery
Institute.
Next headline on: Darwinism.
New Images of Western U.S. from Space Released 02/06/2002
Several dazzling images of Utah and the
Western
United States
were released at the Jet
Propulsion Laboratory website today. In time for the
Winter Olympics are several shots of the Wasatch Mountains and
Salt Lake City rendered from the
highly successful 2000 Shuttle
Radar Topography Mission, which continues to release newly-processed
high-definition images each month. Also, of special interest
is a wide-sweeping view of the
Western
United States composited from data from the
Multi-Angle
Imaging Spectro-Radiometer on board the NASA
Terra orbiting spacecraft.
Click
here for the full hi-resolution image, in which volcanoes, mountains,
lakes, faults, the Colorado Plateau and the Grand Canyon stand out in
unprecedented detail.
Take a moment to peruse these images.
They are not only beautiful, but are sure to provide food for thought
about the forces that shaped this varied and colorful part of our planet.
Next headline on: Geology.
Next amazing story.
Evolutionists Tease Bird Family Trees from DNA 02/06/2002
The Royal
Society Proceedings: Biological Sciences for Feb. 7 has two papers on
the origin of passerine birds (which includes songbirds).
One postulates they radiated from Gondwana, based on molecular evidence:
A Gondwanan origin of passerine birds supported by DNA sequences of
the endemic New Zealand wrens by Ericson et al. The
other, A phylogenetic hypothesis for passerine birds: taxonomic
and biogeographic implications of an analysis of nuclear DNA sequence
data by Barker, Barrowclough and Groth, rearranges earlier theories
with its own evidence.
These papers are valiant attempts to bring
order out of chaos, but they utilize techniques and assumptions that have
so much wiggle room, its hard to expect any confidence that their
ideas will not be overturned by the next. For instance, they assume
the geological column, which is circular reasoning (using the assumption
of evolution to build the column, then using the column to support
evolution). They also assume the molecular clock dating method,
which we reported earlier is
unreliable. So you know right off the bat that any theorizing about
evolution is going to beg the question. Then, they compare just a
few hundred or thousand base pairs of genomes that have millions of
base pairs, so the evidence is selective. Yes, they come up with models
that appear to match some form of phylogenetic trees (with a lot of room
for error), but it appears the very same data could be matched up equally
well with other trees, or with none. There
are similarities that could as well be explained in a creation paradigm.
Whats really instructive about these papers
are the admissions of doubt and uncertainty by the authors. First, in
the Barker paper (emphasis added),
- Passerine birds comprise over half of avian diversity,
but have proved difficult to classify. Despite a long history
of work on this group, no comprehensive hypothesis of passerine
family-level relationships was available until recent analyses of DNA-DNA
hybridization data. Unfortunately...
[They go on to describe
how previous studies had not been adequately tested, but their analysis
contradicts previous work...]
- In contradiction to previous DNA-hybridization studies, our
analyses suggest paraphyly...
- The phylogenetic hypotheses inferred here from our sample of passerine
nuclear-DNA sequences support some previous notions of passerine
phylogeny, contradict others and offer novel insights into
relationships among passerine groups.
Excerpts from the Ericson paper (emphasis added):
- There is an apparent anomaly between these estimates and those based
on the fossil record...
- If the molecular datings are correct, the fossil record of
both birds and mammals is severely biased.
- The details of these radiations are difficult to correlate
with the fossil record...
It should be apparent, in the most conservative terms,
that evolution does not just jump out of the data.
This is not to say that the authors dont make a case; no author is
going to get published just throwing up his hands in despair. But
every solution breeds new problems. Their resulting diagrams of
family trees appear contrived, and as unsteady as a house of cards.
As we have seen many times with other groups of plants and
animals, molecular phylogeny is not clarifying family trees, it is confusing
them, often contradicting both the fossil evidence and the morphology.
Its time to allow alternative hypothesis, without the requirement
to force-fit contradictory data into assumptions of evolution.
Next headline on: Darwinism.
Next headline on: Birds.
Universe or Multiverse? 02/05/2002
In a series on Five Great Cosmic Mysteries on
Space.Com, Andrew Chaikin
asks, Are there other universes?
Theres a reason some theorists want other universes to exist:
They believe its the only way to explain why our own universe,
whose physical laws are just right to allow life, happens to
exist. According to the so-called anthropic principle, there are
perhaps an infinite number of universes, each with its own set of
physical laws. And one of them happens to be ours.
Thats much easier to believe, say the anthropic advocates, than a
single universe fine-tuned for our existence. But
theres a problem. If these other universes exist, there's
no way for us to detect them.
For this reason, some astronomers dismiss the idea as unscientific.
But Chaikin reserves room for hope; based on previous ideas that used to
be considered unthinkable, like the existence of atoms, you never know
what science may discover some day.
The lengths to which atheists will go
to escape the obvious is amazing. In the real universe we inhabit,
we see numerous anthropic properties that make life possible. We
also see information-rich life, and we know from science that information
only arises from previous information. We also know our universe
is running down and cannot be infinitely old. We know that chance
does not produce specified complexity. Why is it so hard to accept
the conclusion In the beginning, God? Why such desperation
to escape to anything, including a mystical, untestable belief in
multiple universes (which would not be of any help anyway), to avoid
facing the Creator? This very attitude helps affirm the truth of
Romans 1:28, They did not want
to retain God in their knowledge. This is not scientific
pursuit of truth; it is not even faith. The Apostle Peter called it
willful
ignorance.
Next headline on: Cosmology.
Closer to Life in a Test Tube? 02/05/2002
Nature Science
Update reports that David Lynn of Emory University has found a way
to make DNA copies without enzymes, then comments, It may even
hasten the advent of synthetic biology: the creation of life from
scratch. Normally a host of enzymes are needed to copy
DNA. Lynn was able to get copies made of a DNA template but using
amide linkages, like translating English into French. Nature
claims they hope to find a way to
translate it back into true DNA, like translating it back to
English. Lynns paper, published in the Journal
of the American Chemical Society, states, The ability to read
a DNA template sequence and chain length specifically represents a
critical extension of biologys template-directed syntheses,
represented by its Central Dogma.
(Central Dogma?) The spin doctoring
Nature does on this story is appalling. Lynns paper is
concerned with techniques for synthetic manufacture of DNA polymers, not
with the origin of life. Nature glosses over monstrous
problems, like the origin of single-handed sugars in DNA, and the origin
of information. Phillip Johnson has said, The fundamental error
of the materialists who rule biology is that they
want to explain the chemicals they want to explain the matter.
They don't have any explanation for the information content. And once
thats realized, then thats their downfall.
Yet they claim, This might then
enable the two kinds of molecule to support their mutual replication,
allowing the possibility of molecular evolution and the appearance of
life-like complexity. Hope reigns eternal, but it is a false
hope. Complexity alone is worthless. The
complexity must
be specified, tied to function, or it is just as useless
as random alphabetic letters in nonsense chains. ic1qD9i1 uiopasq
vqp8iqwerasdp[oi jv.
Next headline on: Origin of Life.
Cave Man Diet Make Strong Like Bull 02/04/2002
Lets grab our clubs and go off to hunt wild game.
Purdue
News reports that anthropological nutritionist Bruce Watkins,
author of
The Paleo Diet (John Wiley and Sons, 2002) thinks the cave man diet
is good for you. Reporting in the January European Journal of
Clinical Nutrition, wild game like venison and elk (and cattle fed
on grass) had a higher proportion of healthy omega-3 fatty acids than
grain-fed cattle. He explains that fat is good if in the right
proportions of good and bad fatty acids. His paper is entitled,
Fatty acid analysis of wild ruminant tissues: evolutionary implications
for reducing diet-related chronic disease.
Whats evolution got to do with it?
That part is all spin, in another vain attempt to make evolution look
useful for understanding our physiology. How about a different spin:
the Genesis diet.
Regardless of angle, this theory is
reductionist. Try an
experiment. Feed elk-meat Big Macs to a gluttonous couch potato,
and feed almost anything to a deer hunter willing to lug rifles and packs
all over the mountains, and observe who stays healthier.
Next headline on: Health.
Next dumb story.
Humans Have Reached Evolutionary Utopia 02/04/2002
Its all downhill from here, says British professor Steve Jones,
reports Guardian
Unlimited. Because humans have insulated themselves from
the dog-eat-dog world of natural selection, this is as good as its
going to get for our species. Others disagree strongly, claiming
humans are still subject to the inexorable force of evolution.
Others say that Western civilization is immune, but developing nations
still play survival of the fittest.
Survival of the fattest seems to be the
trend in Western societies. Anyone who realizes that
natural
selection is a tautological chance-of-the-gaps fallacy incapable
of working the biological miracles it is expected to perform, sees
articles like this as humorous. The rantings of these rival
prognosticators are no more to be taken seriously than the controversies between
Nebuchadnezzars soothsayers about who was saying the real sooth, until
Daniel
walked in.
Next headline on: Darwinism.
Next dumb story.
Ohio School Board Braces for Battle over Origins Teaching 02/04/2002
Phillip E. Johnson in his
Weekly
Wedge Update for Jan. 31 provides more detail on the
controversy developing in the Ohio
state board of education over the teaching of origins.
The ID
Network has several articles on this developing story, including
the speech to the board by
John
Calvert on Jan. 13, who offers $20 to anyone who can prove that
the rule requiring Methodological Naturalism in science classes has
a secular purpose.
Deja vu from Kansas, or a sea change? The board will be voting
in March, and the usual foes are lining up their forces. This
time the ID folks seem better armed, and they also have the Education
Bill backing them up (see next headline).
Next headline on: Schools.
Santorum Explains Education Bill Language: Teach the Controversies Includes Evolution 02/04/2002
The Discovery
Institute has posted excerpts from the Congressional Record
in which Senator Rick Santorum and Congressman Thomas Petri explain the
language in H.R. 1, the Education Bill passed in December, that
students should learn about both sides of controversial issues in
science. He clearly explains that the intent of this language,
albeit revised before final passage, includes Darwinian evolution
and alternative views like Intelligent Design. He concludes,
The public supports the position we are
taking today. For instance, national opinion surveys showto use
the origins issue againthat Americans overwhelmingly desire to have
students learn the scientific arguments against, as well as for,
Darwins theory. A recent Zogby International poll shows the
preference on this as 71 percent to 15 percent, with 14 percent
undecided. The goal is academic excellence, not dogmatism.
It is most timely, and gratifying, that Congress is acknowledging and
supporting this objective.
Thomas Petri added, Additionally, this conference report makes a
strong statement that, where Darwinian evolutionary theory or other
controversial scientific topics are taught, students should be exposed
to multiple viewpoints. Too often, students are taught only one
theory where evolution is concerned, and this language gives support to
those at the local and state level who uphold the value of intellectual
freedom in the teaching of science.
Santorums and Petris unequivocal
statements contradict
the view of the National Center for Science Education that the H.R. 1 language
means that creation or intelligent design is excluded, because only
scientific theories may be taught. In the first place,
evolution is not a scientific theory, and in the second place,
Intelligent Design does not specify the identity of the designer, and
therefore does not involve itself with religion.
Senator Santorums comments are important and
worth reading. He apparently was influenced by a paper published
in the Utah Law Review (February, 2001) by Stephen Meyer,
David K. DeWolf, and Mark E. DeForrest called
Teaching
the Origins Controversy: Science, Religion or Speech?
After decades of triumph by Darwinist propagandists, this is an
important development by the Congress that has not received much
attention. Though it is only a recommendation and not a mandate,
it is highly significant that a majority of both houses, liberals and
conservatives, even Ted Kennedy, supported this language.
Students and teachers should take this ball and run with it.
Why not teach both sides of controversial issues? Who can be
against that? Michael Shermer, for one...see next headline.
Next headline on: Politics.
Next headline on: Schools.
Stamp Out Creationism...Gradually 02/04/2002
Last month in an essay in
Scientific
American, professional skeptic Michael Shermer strategized about the
best way to help Darwinism triumph over creationism (despite the latters
popularity in the polls, a finding he calls disturbing).
He compares denial of evolution to denial of the Holocaust, and recalls
Darwins reflection that direct attacks on Christianity seem to have
little effect on the public. Shermer agrees with Darwin that the
best method
is not through direct attacks but by the continued advance of science.
Shermer, who grew up believing the Bible
(isnt
it interesting that some of the most vocal atheists are Christian apostates),
perpetuates several myths in his essay, (to say nothing of the ridiculous
association of denying evolution with
denying the Holocaust).
First is the myth of scientism,
that scientific advance is always upward and onward and can explain
everything. Second is the myth that Intelligent Design (what he
calls the recent incarnation of creationism) is stifling to
scientific inquiry (then why did Newton, Boyle, Pascal,
Leeuwenhoek,
Joule, Maxwell and many other
great scientists in history
pursue science so vigorously and with such excellence?).
The third is that the convergence of
evidence from every field supports evolution. He needs to start
reading Creation-Evolution Headlines. Regarding Darwinism,
Shermer bluffs, It must stand or fall on the evidence, and there are few
theories in science that are more robust than the theory of
evolution. (cough, choke) Well, we agree that
it must stand or fall on the evidence.
Show us some.
Next headline on: Darwinism and Evolutionary Theory.
How Cellular Transporter Machines Work 02/01/2002
Your body, and the cells of all living things, are filled with
transporters: miniature shuttles called dynein motor proteins
that move cargo around subway tunnels called microtubules.
Dynein consists of two heads that scientists thought move past
each other in a hand-over-hand fashion. But now, a team of
three biochemists publishing in the
Feb 1
issue of Science claim to have found evidence that dynein
moves more like an inchworm, in 8-nanometer steps. But its
a pretty fast and brawny inchworm, transporting cargo molecules much
bigger than itself at high speeds down the tracks.
In the same issue, Jennifer Couzin describes the excitement and surprise at this
new theory of dynein movement. She begins with,
Behind a beating heart, fingers running fluidly across a piano, or a
stomach cell shuffling nutrients to its neighbor are hundreds of
motor proteins that make such motion possible.
Like we noted before, the study of molecular machines is the
Biology of the Future. Watch
for continuing exciting discoveries in this dynamic field.
Next headline on: The Cell and Biochemistry.
How Life Defends Against Ha |