Uncategorized
- Computing
Social Networking for Zebras
Scientists are developing a new branch of network theory to understand zebra communities.
- Humans
Letters from the December 1, 2007, issue of Science News
Bed nets and insecticides Kenyan researchers report that insecticide-treated bed nets can reduce malaria-related deaths in children (“Keep Out: Treated mosquito nets limit child deaths,” SN: 9/29/07, p. 195). While these nets appear to provide preventive measures against malaria, my only concern is the toxicity of the insecticides. The World Health Organization lists two of […]
- Humans
From the November 20, 1937, issue
An American Nobel laureate in physics, the need for research in the chemistry of petroleum, and a new way to send photographs by telegraph.
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Poles Apart, but Viewed Together
We’re well into the International Polar Year, which actually runs for 2 years. The program, which is coordinating teams doing Arctic and Antarctic research, will allow the public to periodically check in on developments. For instance, people will be able to follow polar animals as they fly around the Antarctic, swim through the oceans, or […]
- Health & Medicine
Biohazard: Smoking before or after pregnancy may harm daughters’ fertility
Smoking before pregnancy or during breastfeeding might impair the female offspring's fertility, a study in mice shows.
- Physics
Einstein Unruffled: Relativity passes stringent new tests
The moon's orbit and the dilated time of speeding atoms give new meaning to 'Einstein was right.'
- Health & Medicine
Wrong Way: HIV vaccine hinders immunity in mice
An HIV vaccine hurts, not helps, the immune systems of mice, say scientists.
- Materials Science
Snappy Transition: Venus flytrap inspires new materials
Inspired by the quick-shut action of the Venus flytrap, researchers have designed a patterned surface with microscale hills that can rapidly flip to form valleys.
- Plants
It Takes a Village: Tweaking neighbors reroutes evolution
The other residents of a plant's neighborhood can make a big difference in whether evolutionary forces favor or punish a plant's trait.
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Hold the Embryos: Genes turn skin into stem cells
Scientists have found a way to convert a person's skin cells directly into stem cells without creating and destroying embryos.
- Math
A Video That’s Worth a Million Words
Award-winning video reveals the simplicity and beauty of an abstract mathematical tool.
- Paleontology
A toothy smile
Nigersaurus boasted more than 500 teeth, arranged in rows across its mouth.
