Uncategorized
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19628
In this article about using harmonic reflected signals to track bees, I thought it was interesting to note that the original technology was created by the Russians as a spy device. The technology is still being used for a form of spying. Dwight ElveySanta Cruz, Calif.
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- Humans
From the January 4, 1936, issue
Experimental rockets, a tuberculosis-fighting bacteriophage, and an antidote for barbiturate poisoning.
- Math
Slide Rule Universe
Nowadays, calculators and computers are essential tools for scientists and engineers. A few decades ago, however, an ingenious calculating device called the slide rule was in every engineer’s toolbox. This Web site provides a glimpse of those long-gone days. It provides references materials on the care, feeding, and use of slide rules, a slide-rule marketplace, […]
- Health & Medicine
Bright Lights, Big Cancer
A woman's blood provides better sustenance for breast cancer just after she's been exposed to bright light than when she's been in steady darkness.
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19627
Epidemiologist Scott Davis warns, “Melatonin supplements are not regulated” the way drugs are. . . . “There may be all kinds of impurities and contaminants.” Are you really going to tell me that you aren’t going to take melatonin—if you’re convinced that it might lower your chance of getting cancer by as much as 50 […]
- Astronomy
Gauging Star Birth: Spacecraft uses gamma rays as stellar tracer
Using radioactive material spewed into space by dying stars, astronomers have measured the star-formation rate in our galaxy over the past few million years.
- Earth
Mass movement
Two satellites designed to note small changes in Earth's gravitational field detected effects of the magnitude 9.3 earthquake that occurred west of Sumatra on Dec. 26, 2004.
- Physics
Quantum Chip: Device handles ions as if they were data
A new microchip can trap and move an ion, preliminary steps toward carrying out quantum computations on a chip.
- Animals
Locust Upset: DNA puts swarmer’s origin in Africa
The desert locust was not an ancient export from the Americas, according to a new DNA analysis.
- Humans
Letters from the January 7, 2006, issue of Science News
Death in the Americas I was wondering if researchers have given any thought to the idea that in the same way that disease devastated human populations after the European discovery of the Americas, perhaps disease was a contributing factor in the demise of much of the fauna of the Western Hemisphere (“Caribbean Extinctions: Climate change […]
- Chemistry
Molecular Car Park: Material packs in carbon dioxide
A porous, crystalline material composed of metal and organic building blocks holds more carbon dioxide than other porous substances do.
