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The Gecko in the Flight Simulator
March 17, 2008
It’s a lizard! It’s a plane! It’s Supergecko! Researchers at UC Berkeley (where else) put a gecko into a wind tunnel to watch it fly. News about gecko’s magic feet that allow it to run vertically up glass is almost old hat now (08/27/2002, 01/04/2005). Even a gecko can lose its footing, though, and thereon […]
How to Address an Alien
March 17, 2008
How would you like this job: your assignment is to be the speechwriter for planet earth. You are to figure out what our first message is to the aliens – to give them a good first impression as we introduce the human species to the galactic community. “No kidding? What does it pay?” […]
Astrobiology Justifying Itself
March 16, 2008
Is astrobiology a legitimate science? Seth Shostak, director of the SETI Institute, tried to answer that question in the weekly SETI Thursday column on Space.com. He estimates there are “approximately a thousand scientists who would be proud to print ‘astrobiologist’ on their business cards.” Astrobiology still gets a cool reception in some quarters. Shostak likened […]
How to Avoid Dark Energy
March 15, 2008
Who needs dark energy? Copernicus? George Ellis (U. of Cape Town) said we could get rid of dark energy by throwing the Copernican Principle overboard. Writing in Nature,1 he said that dark energy may simply be an artifact of the geometry of space-time. Copernicus did not invent the Copernican Principle. He was just […]
Animal Feats Inspire Imitation
March 14, 2008
Imagine carrying 850 times your own weight. Step aside, Hercules, and meet the Hercules beetle: the strongest creature in the world. Science Daily said that researchers in Belgium are not just impressed with its show of strength. They are finding inspiration for “intelligent materials.” The Hercules beetle has a shell that is able […]
Falling Rocks Leave Holes in Science
March 13, 2008
Hard data in astronomy is hard to come by, except when it comes by special delivery – as with meteorites. If there is any class of phenomena that should be well understood, it should be space debris and the craters they form, because the processes involved can be watched in real time. Meteorites adorn many […]
Humans as Lab Rats, or, Can an Evolved Brain Reason?
March 12, 2008
Evolutionary biologists and neurologists use their fellow humans as guinea pigs, performing experiments and drawing conclusions about their evolutionary past. One question rarely asked is how reliable are conclusions drawn from the biologist’s brain that is presumably just as evolved as that of its lab subject. Everyone does philosophy, but some do it […]
Were Hobbits Pygmies?
March 11, 2008
More miniature human skeletons have been discovered in Micronesia. These ones, found at Palau and reported in PLoS One,1 are unquestionably modern human, but small in stature – less than four feet tall. They are also recent. Radiocarbon dates on the bones yielded dates between 1400 and 3000 years old. The find was reported by […]
Saturn Moons Continue to Surprise Scientists
March 10, 2008
Just days before a long-awaited dive into the plume of Enceladus (see PhysOrg and JPL press release, flyby stats and news release), Cassini found another surprise in the Saturn system: a moon with rings. A Jet Propulsion Lab press release on March 6 reported that the large moon Rhea may have rings – […]
Mr. Clean Is Sick
March 9, 2008
Do you get sick too easily? Did you grow up with allergies? One reason might be your home environment is too clean, says a story on PhysOrg. The “hygiene hypothesis” asserts that our immune system over-reacts to lack of stimulation by turning on itself – producing autoimmune diseases and allergies. It “blames increased […]
Revolt in the Darwin Camp
March 7, 2008
With minor skirmishes, the Neo-Darwinian Synthesis (natural selection acting on random genetic mutations) has held sway in evolutionary theory since the 1930s. Now, discontent with the pre-eminence of natural selection is leading to a major skirmish between evolutionists to be fought at a conference this summer. Susan Mazur calls this the “Woodstock of Evolution” in […]
How to Translate Darwinese
March 6, 2008
A unique culture has sprung up around evolutionary biology. Since evolutionary theory encompasses far more than just change in living species (touching on, for instance, ultimate origins, the nature of humanity and the destiny of the universe), its supporters sometimes get a little carried away in their language. The tendency in science reporting to embellish […]
Grand Canyon: How Do You Get a River Over a Mountain?
March 5, 2008
One would think that the Grand Canyon, one of earth’s most prominent geological features, studied by geologists for 140 years, would be well understood. Wrong. “The Colorado River’s integration off the Colorado Plateau remains a classic mystery in geology, despite its pivotal role in the cutting of Grand Canyon and the region’s landscape evolution.” That’s […]
Darwin for the Birds
March 4, 2008
Here’s a flock of bird stories that have Charles Darwin on stage or in the wings, so to speak. Was Darwin wrong? Yes! Contra National Geographic (10/24/2004), the science news outlets are all saying today that Darwin was wrong – but only about the origin of chickens (see EurekAlert #1, EurekAlert #2 and Science Daily). […]
The Root Route
March 4, 2008
Why don’t roots push a plant right out of the ground? It’s a question only a scientist or an 8-year-old kid would ask. The answer is more amazing than either would have realized. Root hairs feel their way around obstacles and find the openings, in the dark, by means of a complex interplay of proteins […]
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