Uncategorized
- Tech
DNA puts its best foot forward
A robot made of DNA has taken its first steps, suggesting that such devices could eventually be used for nanoscale manufacturing.
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Chimp DNA yields complex surprises
A molecular comparison of chromosome 22 in chimpanzees with its counterpart in people reveals surprisingly complex genetic differences between the two species.
- Health & Medicine
Green tea takes on poison
Green tea contains a broad range of compounds that detoxify dioxin.
- Tech
Microwave mirror hits the spot
A technique for rebounding and refocusing sound also works for electromagnetic waves, possibly opening new uses ranging from improving cell phone communication to treating illness.
- Health & Medicine
Americans eat faster, and more
More and more people are eating at fast-food restaurants, and they down significantly more calories on the days they do.
- Chemistry
Crystal could generate pure hydrogen fuel
An organic crystal's unusual molecular-trapping behavior could help drive a new hydrogen economy.
- Health & Medicine
Statins might fight multiple sclerosis
Cholesterol-lowering statin drugs might work against multiple sclerosis by reducing inflammation, preliminary evidence suggests.
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19430
In the article, an agronomist claims that farmers “typically apply more fertilizer than their crops need” as an explanation for increased pollution in coastal waters. I don’t know any farmers who risk their products in the way suggested here. An examination of home lawn care would point to a much bigger problem. Mary HeinrichtCulpepper, Va. […]
- Earth
Limiting Dead Zones
To limit algal blooms and the development of fishless dead zones in coastal waters, farmers and other sources of nitrate are investigating novel strategies to control nitrate runoff.
- Math
Theorems for Sale
In April, an eBay auction offered math enthusiasts the rare opportunity of linking their names with one of the most famous mathematicians of the 20th century.
- Humans
From the June 2, 1934, issue
The first chimpanzee twins born in captivity, increased speed and safety for aircraft, and a new pH indicator.
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