Uncategorized
- Humans
From the December 10, 1932, issue
CALVES RETAIN PART OF WILD THINGS’ CHARM Cows are prosaic. Like all the rest of us who have grown into maturity and (alas!) responsibility, they have their workaday jobs in a workaday world, seeing to it that we get butter and, eventually, beefsteaks. But calves still have something reminiscent of the long-lost wild freedom of […]
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Grossology
This Web site from the Carnegie Science Center in Pittsburgh accompanies a traveling exhibit, based on the book Grossology by Sylvia Branzei, that addresses many of the “slimy, oozy, crusty, stinky” questions that kids love to ask about the human body. Visitors can view scenes from the exhibit, listen to gross body sounds, try out […]
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Fly Genome Creates a Buzz
Scientists try to make sense of an insect's myriad genes.
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- Planetary Science
X rays reveal Eros’ primitive nature
Aided by a blast of X rays from the sun, a spacecraft orbiting the near-Earth asteroid 433 Eros has gathered preliminary evidence that the rock is a primitive relic, apparently unchanged since the birth of the solar system.
- Physics
Light pulses flout sacrosanct speed limit
Faster-than-light firsts: Restless laser pulse leaves before it arrives, while merging microwaves send out a superluminal scout.
- Astronomy
Survey confirms composition of the cosmos
A team of astronomers announced this week that after measuring the redshifts of 100,000 galaxies, they have new evidence for what makes up most of the mass of the universe.
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19213
This article says that in cavitation, “bubbles form when falling pressure permits dissolved gases to pop out of solution.” A cavitation-vapor bubble is formed when the pressure drops below the vapor-liquid saturation pressure for the liquid. Dissolved gas bubbles will just give you a fizzy cola. A.J. McPhateBaton Rouge, La.
- Tech
Deadly Bubble Bath: Ultrasound fizz kills microbes under pressure
A modest pressure increase on a liquid agitated by ultrasound dramatically boosts the microbe-killing power of those high-frequency sound waves.
- Astronomy
Hubble Weighs In: Pinning down an extrasolar planet’s mass
Using a decades-old technique, astronomers have precisely measured the mass of a planet outside our solar system.
- Materials Science
Nanotube ID: New signatures aid nanotech progress
Researchers have developed a means for rapidly distinguishing among 33 semiconducting varieties of carbon nanotubes.
- Health & Medicine
Cluster Bombs: Metabolic syndrome tied to heart disease deaths
Men with a certain cluster of metabolic characteristics are about three times as likely to die of heart disease as men without the traits are.
