Uncategorized
- Health & Medicine
Belated angioplasty saves no lives
A common heart procedure called angioplasty doesn't save lives if it is performed more than a couple of days after a heart attack.
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Oceans reveal secrets of viruses
Scientists have completed the first survey of virus DNA in oceans around the world.
- Tech
Safety practices surveyed
Nanotechnology companies and laboratories largely rely on the same safety practices that they use when working with conventional chemicals, an international survey reports.
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Inherit the Warmer Wind
The genetic makeup of organisms ranging from fruit flies to birds appears to be changing in response to global warming.
- Astronomy
What’s a Planet?
Recent observations have blurred distinctions among stars, brown dwarfs, and planets.
- Humans
Letters from the December 2, 2006, issue of Science News
Concerns vented “Venting Concerns: Exploring and protecting deep-sea communities” (SN: 10/7/06, p. 232) barely scratches the surface of the problem. What is stopping someone from gene splicing the disease of choice onto heat-loving bacterium? Something that can live near the 600°F of melting lead will certainly survive the standard hospital-sterilization process. D.J. KavaBeaumont, Texas The […]
- Humans
From the November 21, 1936, issue
Wild turkeys, a life-extending diet, and seeing through fog.
- Physics
Snow Crystals
This Web site, created by Caltech physicist Kenneth G. Libbrecht, is all about snow crystals and snowflakes. With many beautiful images, it provides a guide to snowflakes, information on growing snowflakes, an introduction to the physics of snowflake formation, and ideas for snow and ice activities. Go to: http://www.snowcrystals.com/
- Earth
Balancing Act: El Niños and dust both affect coral bleaching
Most of the annual variation in the extent of coral bleaching in the Caribbean is driven by two factors: the amount of dust and other particles suspended in the atmosphere, and the climate phenomenon known as El Niño.
- Health & Medicine
Ticking toward Trouble: Long-term rise in heart rate portends death
Men whose hearts beat faster over time are likely to die earlier than those whose hearts keep an unchanging cadence year after year, according to a 20-year study.
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Age Becomes Her: Male chimpanzees favor old females as mates
Male chimpanzees in Uganda prefer to mate with older females, a possible sign of males' need to identify successful mothers in a promiscuous mating system.
- Physics
Super Silicon: Top semiconductor turns into a superconductor
A heavy dose of boron transforms silicon, the superhero material of electronics, into a superconductor.
