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Dumb Ideas

The Limits of Scientific Speculation
June 14, 2010
How far can a scientist speculate and get a respectful hearing, just because he or she is a scientist?  One case to examine is a story on PhysOrg, “The Chance for Life on Io” (see also Astrobio.net).  Jupiter’s innermost large moon Io might be considered the last place to look for life.  It is the […]
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Dumb Ideas

Planets Seen Forming! (or Dust Spreading )
June 13, 2010
Science headline writers were almost beside themselves with joy at the prospect of watching other planetary systems in the process of forming.  Science Daily nearly set a record with a large-print, bold, 22-word headline: “Zooming in on an Infant Solar System: For the First Time, Astronomers Have Observed Solar Systems in the Making in Great […]
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Amazing Facts

Flagellum Replaces Parts on the Fly
June 12, 2010
A new study appears to show that the bacterial flagellum, a molecular rotary motor that has become iconic of the intelligent design movement, can repair parts of its rotor while it is rotating.  The results of the study by Oxford University were published in PNAS,1 and were also the focus of a Commentary in PNAS […]
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Cosmology

Could Cosmology Be Based on Flawed Calibrations?
June 11, 2010
This is the era of “precision cosmology,” we have been told (09/20/2004 04/13/2007).  Especially since the Wilkinson Microwave Anisotropy Probe (WMAP), measurements of faint deviations in the cosmic microwave background have reached exceptional detail (02/14/2003, allowing cosmologists to discriminate between cosmological models and, hopefully, provide insight into the nature and origins of the universe.  But […]
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Darwin and Evolution

Not Lamarck Again
June 11, 2010
Remember Lamarck?  He was the pre-Darwin evolutionist whose theories we were all taught were overthrown by Darwin’s superior theory of natural selection.  Lamarck’s theory of “inheritance of acquired characteristics” was shown to be demonstrably false by the dramatic experiments of Weismann, right?  It was never really so clear-cut as that, as evolutionary historians know, but […]
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Darwin and Evolution

Darwin’s Sweatshop: Why Ethiopia Made People Hairless
June 10, 2010
Five scientists think they have figured out why people walk upright and don’t have fur like other mammals.  They had to evolve in Ethiopia, where it is hot.  This led to the loss of body hair, and the evolution of sweat glands and other adaptations to deal with the heat.     It’s not that […]
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Amazing Facts

Plants Have Memories
June 9, 2010
June 09, 2010 — Have you ever noticed how plants have an uncanny ability to know, without eyes or brains, when the time has come to bloom?  Even when spring comes early or late in some years, they sense the right time, and out come the flowers.  This is even more remarkable when you consider […]
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Solar System

Making Model Earths
June 8, 2010
Modeling how the earth got here can be fun.  One doesn’t have to be right, just creative.  There are certain accepted paradigms to work within, and certain accepted constraints that are taken as a given.  Beyond that, there is a lot of leeway.  This is illustrated by two teams who published in two different journals […]
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Origin of Life

Not Life on Titan Again
June 7, 2010
Something weird is going on at the large moon of Saturn.  “What is Consuming Hydrogen and Acetylene on Titan?” teased a press release from Jet Propulsion Laboratory”s Cassini mission: Two new papers based on data from NASA’s Cassini spacecraft scrutinize the complex chemical activity on the surface of Saturn’s moon Titan.  While non-biological chemistry offers […]
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Health

Get a Life with Nature
June 6, 2010
Feeling bored, low on energy, exhausted?  Don’t reach for a cup of coffee.  Get out into nature.  Researchers at the University of Rochester ran some controlled experiments on college students and found that those who spent a little time outdoors felt happier and more energetic.  “Spending time in nature makes people feel more alive,” the […]
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Physics

Jupiter Scores Another Hit
June 5, 2010
Amateurs saw Jupiter get struck by something again on June 3.  Last year, an asteroid also hit the giant planet.  Good thing Jupiter caught it and not Earth.  The asteroid, believed to be about 500 meters across, left a scar as big across as the Pacific Ocean.  National Geographic and the BBC News have photos […]
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Amazing Facts

Your Nerves and Heart Depend on Cellular Pulleys, Latches and Switches
June 4, 2010
Biologists continue to peer closer and closer at cellular machines that work just like man-made ones, only at scales so tiny, they control individual atoms.  Of particular interest have been the gates in the membranes of cells that allow certain atoms in but keep others out.  A recent paper in Cell by an Australian team […]
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Darwin and Evolution

Whale Evolution: Hurry Up and Wait
June 3, 2010
Whales evolved really fast, then just swam around with nothing to do for tens of millions of years.  “Whales Evolved in the Blink of an Eye” wrote Brett Israel for Live Science about a new study that claims “Whales evolved explosively fast into a spectacular array of shapes and sizes” about 35 million years ago, […]
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Amazing Facts

Venter’s Synthetic Plagiarism Deflated by NY Times
June 2, 2010
How significant was Craig Venter’s achievement of a so-called synthetic genome?  Somewhat significant, but it pales in significance to creating life from scratch.  It was only like “peering over a fortress that is the mighty cell,” wrote Natalie Angier for the New York Times Monday, May 31.     The article was accompanied with a […]
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Uncategorized

Catching Up to Butterflies for Improved Security, Optics
June 1, 2010
Butterflies do it better, but at least they provided the inspiration, and thanks to them, we may have cash that is more secure.  PhysOrg headlined, “From butterflies’ wings to bank notes – how nature’s colors could cut bank fraud.”     Scientists at the University of Cambridge were intrigued by the Indonesian Peacock or Swallowtail […]
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