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Dumb Ideas

Walking Upright Is Not Just for Pregnant Females
December 13, 2007
Pregnant women have enhanced curvature of the lower spine, which helps them support their babies during pregnancy.  Obviously, this must have evolved that way because emerging apes rising to their feet had different physiological needs.  Most science news reports are echoing this theme from a paper in Nature1 without any qualms about the Lamarckism or […]
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Amazing Facts

What Keeps Skin Strong? Velcro!
December 8, 2007
Skin would fall to pieces were it not for velcro-like molecules that bind its cells together.  These molecules, called cadherins, make skin strong but also supple.  Their secret was explained by Ashraf Al-Amoudi of the European Molecular Biology Laboratory, quoted in Live Science.  “The trick is that each cadherin binds twice: once to a molecule […]
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Dumb Ideas

Origin of Life: Food for Queazy Thought
December 6, 2007
New theories of the origin of life seem to come and go like fashion trends.  A biochemist at University of California at Santa Barbara (Helen Hansma) put out a new plot line about biomolecules forming between the protective flakes of mica.  This was all Dave Mosher at Live Science (see reprint on MSNBC) needed to […]
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Solar System

Active Moons Challenge Old-Age Beliefs
December 3, 2007
The best planetary scientists in the world, constrained within their chosen billions-of-years mindset, have many questions and few answers.
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Amazing Facts

Cell Gatekeepers: Diverse, Complex, Accurate
December 2, 2007
Cargo moves around rapidly and ceaselessly in every cell.  Some moves in and out of the external membrane, and some moves in and out of organelles and the nucleus.  In a system of protected domains surrounded by impermeable membranes, how does the cell control what should pass?  Details of the amazing gatekeeping mechanisms embedded in […]
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Dumb Ideas

Magicians through the Looking Glass
November 29, 2007
A leading origin-of-life researcher passed away last month: Leslie Orgel.  Gerald Joyce paid him tribute in Nature.1  Orgel worked closely with other famous origin-of-life people like Stanley Miller, and was a leader in the “RNA world” scenario for the origin of life.  Joyce appreciated his rigid empiricism: Although Orgel was a theoretician, he always demanded […]
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Amazing Facts

Dealing with Light at the Extremes
November 28, 2007
“Light is the most important variable in our environment,” wrote Edith Widder, a marine biologist.  The inhabitants of two different ecosystems have to deal with either too little or too much.  Let your light so shine:  A thousand meters below the sea surface, all sunlight is extinguished.  Yet for thousands of meters more, creatures live […]
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Dumb Ideas

SETI Researcher Writes Children’s Poem
November 22, 2007
For a feature called “SETI Thursday” at Space.com, Dr. Laurence Doyle has written a childish poem about how life brought itself up from nothing to galactic explorers.  It begins, “When the Earth was young, and the Moon nearby, in a cometary sea, prokaryotic thoughts arose, what fun it is to be!”  The idea of evolving […]
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Dumb Ideas

Males on “Evolutionary Overdrive”
November 17, 2007
A press release from University of Florida claims males evolve faster than females, and suggests a reason.  It’s because males are simpler.  Some quotes: The observation that males evolve more quickly than females has been around since 19th century biologist Charles Darwin noted the majesty of a peacock’s tail feather in comparison with the plainness […]
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Amazing Facts

Nature Inspires Useful Products
November 16, 2007
Some day soon you may be able to extract water out of thin air, decorate your walls with detachable wallpaper, read street signs clearly in fog, and employ reusable tape underwater.  These are some of the innovations coming from biomimetics – science inspired by nature’s designs. Venus flytrap:  Alex Crosby at University of Massachusetts was […]
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Amazing Facts

Photo: Earthrise 2007
November 15, 2007
The Japanese Kaguya spacecraft has taken a series of “Earthrise” photos from lunar orbit, including this sequence.  The complete set of new hi-resolution photos is available at Japanese Aerospace Exploration Agency.  (Due to the orbital path of the spacecraft, Antarctica is at the top.)     “Earth-rise is a phenomenon seen only from satellites that […]
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Amazing Facts

More Cell Codes and Authentication Mechanisms
November 13, 2007
Here are more “cool cell tricks” that ensure a smoothly-functioning system inside the cell that can adapt to changes while protecting assets. Ribosome code:  Why don’t all ribosomes look alike?  Perhaps they know a secret code.  Another possible coding mechanism has been found in ribosomes, those important organelles in the cytoplasm that translate messenger RNA […]
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Dumb Ideas

Monkey See, Monkey Rationalize
November 10, 2007
It’s a quirk of English that rational and rationalize have opposite meanings.  Be that as it may, the latter may have evolved into to the former, according to a story in the New York Times.  A monkey study using children as control subjects seems to indicate that Capuchin monkeys, like us, occasionally rationalize bad choices. […]
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Amazing Facts

Winged Migration Grows Up
November 5, 2007
Scientists used to rely on metal bands on birds’ legs to find out how they got from here to there.  Now, they can glue tiny radio transmitters to their shoulders and follow them in real time.  What happened when Princeton scientists hijacked 30 white-crowned sparrows and took them from Seattle to New Jersey?  Age has […]
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Amazing Facts

Developing Ear May Have Tuning Fork
November 3, 2007
What tunes up an embryo’s ears before it hears its first sound?  A new study suggests that support cells in the cochlea, long thought to be inert, have a role in tuning up the hair cells during development.  Experiments by Dr. Dwight Bergles and a team at Johns Hopkins suggest that cells in a tissue […]
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