Uncategorized
- Astronomy
Pulsar pas de deux
Astronomers have for the first time discovered two pulsars orbiting each other, offering the chance for new precision tests of Einstein's theory of general relativity.
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Keeping abreast of serotonin’s roles
Serotonin, a chemical typically associated with the brain, also controls milk production in mammary glands.
- Tech
Body Builders
By growing stem cells on three- dimensional polymer scaffolds, tissue engineers hope to mimic natural tissue development and ultimately produce replacement body parts.
- Earth
Killer Waves
Scientists are using sophisticated computer models, field studies of coastal geology, and data from tidal gauges to assess the tsunami risk for coastal residents.
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19385
I would guess that a rock measuring 1 kilometer across, landing near New Zealand 500 years ago, would have done much more than create a tsunami 300 to 500 feet high. Was the object 1 km across before encountering Earth’s atmosphere? Don ArthurNorth Coventry, Pa. Yes. The object’s estimated size is before it hit the […]
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From the February 24, 1934, issue
A giant panda cub, anti-photon prediction, and meteor effects on short-wave radio reception.
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Microbe Library
The American Society for Microbiology offers a variety of images and other materials about the microbial world for classroom use. The collection includes images of various microbes, videos and animations, curriculum materials, articles, activities, and more. Go to: http://www.microbelibrary.org/
- Health & Medicine
Averting Pain: Epilepsy drug limits migraine attacks
A drug normally used against epilepsy can prevent migraine headaches.
- Paleontology
Old Colonies: Ancient formations are termites’ legacy
New analyses of mysterious pillars at two sites in southern Africa suggest that the sandstone features are petrified remains of large, elaborate termite nests.
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Song Sung Blue: In brain, music and language overlap
Different classical-music passages facilitate thinking about specific verbal categories, triggering brain responses previously seen only when people recognized related linguistic meanings.
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19384
Perhaps Stefan Koelsch’s study should have been limited to trained musicians, rather than exclude them. Word and visual associations in music are vigorously reinforced in movie soundtracks, cartoons, and elsewhere. But classical composers and musicians typically take pains to isolate their musicianship from any and all nonmusical elements. This inquiry may shine light on the […]
