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Amazing Facts

Scientists Marvel at Enzyme Efficiency
November 11, 2008
Many chemical reactions occur from simple collisions.  One atom may have spare electrons, another may need them.  Attracted by each other’s valences, the atoms collide and bonds form.  Not so with biological enzymes: these molecular machines owe their efficiency to their three-dimensional shapes.  Made up of hundreds of amino acids, enzymes have “active sites” where […]
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Cell Biology

Biological Complexity Continues to Astound
November 3, 2008
There’s more going on in your thinking apparatus than you think.  New scientific discoveries continue to unfold new layers of complexity and control.  Here are a few examples: Meta-code:  Your body has codes directing codes.  Geneticists were initially dismayed to find only 20,000 to 30,000 genes in the human genome.  “We were expecting that something […]
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Amazing Facts

Paley’s Watch Found in Bacteria
October 31, 2008
A clock with cogs, gears and ratchets that keeps accurate time – what more could William Paley wish for?  The 18th century natural theologian used the illustration of stumbling upon a watch in a heath as an example of reasoning from design to a Designer – as from watch to watchmaker.  Skeptics like David Hume […]
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Amazing Facts

How Cells Thread a Needle
October 17, 2008
Your challenge today is to invent a machine that can push a wet noodle through a straw.  It can’t pull it.  First it has to grab the end, then push it through without breaking it.  Oh, and there’s a catch; the straw has a plug at the far end and a constriction inside.  Give up?  […]
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Cell Biology

Selling Stem Cells to Voters
October 15, 2008
If you thought embryonic stem cell research became moot after researchers found they could induce skin cells to become pluripotent, these news stories show the push is still on to open up more funds for embryonic stem cells.  A ballot measure in Michigan is a bellwether for how scientists still feel about these tantalizing objects […]
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Amazing Facts

Plants Have Thermostats
October 13, 2008
Plants, being stuck in the ground, have few options when it gets hot.  They may not be able to move into the shade like animals, but they know how to cope.  They have a built-in thermostat that acts like a fire prevention department.  Science Daily tells the story.     Researchers at Michigan State identified […]
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Amazing Facts

Deep Life Is Right at Home in Total Darkness
October 10, 2008
It seems every year scientists find organisms thriving in environments thought too inhospitable for life.  A new word was coined for these organisms: extremophiles – lovers of the extreme.  Two recent discoveries push the envelope of extreme environments almost to the deep limit. Pressurized fish:  The bottoms of the deep ocean trenches of the Pacific […]
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Dumb Ideas

It’s Fun Seeing Evolution Falsified
October 8, 2008
“Mysterious Snippets Of DNA Withstand Eons Of Evolution” is the strange title of an article on Science Daily.  Gill Bejerano and Cory McLean from Stanford are wondering why large non-coding sections of DNA are very similar, or “ultraconserved,” from mice to man (see 08/18/2007).  Evolutionary theory would expect that non-functional genetic material would mutate more […]
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Dumb Ideas

How the Evolution Story Became Like Jellyfish
September 30, 2008
“How the [blank] got its [blank]” is the template for story titles imitating Rudyard Kipling’s Just-So Stories: i.e., How the Camel Got His Hump and How the Leopard Got His Spots.  Kipling wrote these as silly stories to entertain children, not to be taken seriously by scientists.  Knowing that creationists often criticize Darwinian explanations as […]
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Amazing Facts

Leaves Don’t Fall; They’re Pushed
September 22, 2008
Rocks may fall (thus the need for warning signs on highways), but leaves are pushed off of trees by a genetic program.  The process, called abscission, has been mysterious for a long time.  A team from the University of Missouri has mapped out, for the first time, the abscission pathway in one plant.  Being this […]
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Birds

Flightlessness Evolved Four Times
September 10, 2008
An article on Science Daily claims that the famous flightless birds – African ostriches, Australian cassowaries and emus, New Zealand kiwis and South American rheas – are unrelated.  There was no flightless common ancestor.  They lost their ability to fly independently, scientists say, because of “parallel evolution.”     This would also mean that emus […]
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Darwin and Evolution

How Not to Prove Positive Selection
September 5, 2008
Erase all that evidence for positive natural selection in the genes you’ve read about. 
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Amazing Facts

Cellular Machines Work Like Cameras, Winches and Turboprops
September 3, 2008
The discovery that cells are filled with molecular motors is one of the major achievements of late 20th-century molecular biology.  Biochemists routinely use the word “motor” when describing cellular processes, because, in fact, machines made of protein actually do use energy to perform work.  Now we have a new hybrid science – biophysics – that […]
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Amazing Facts

How Chromosomes Pack Without Exploding
August 24, 2008
When preparing to divide, a cell has to copy all its DNA accurately and pack it into chromosomes.  A professor at U Chicago told Science Daily this is “like compacting your entire wardrobe into a shoebox.”  The cell has another difficulty in this compaction process, though: DNA, being negatively charged, resists packing.     Eukaryotes […]
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Genetics

Flatlife Has More Genes Than It Needs
August 23, 2008
The genome of a placozoan (“flat animal”) shows more complexity than one would expect for a simple life form.  According to evolutionists, it shows that even a barely-differentiated animal presumably ancestral to complex animals had the genetic toolkit of its more-advanced descendents.     Trichoplax adhaerens is a slimy-looking thing that sticks to aquarium walls.  […]
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