Uncategorized
- Planetary Science
Mars reveals more frozen water
Planetary scientists have discovered ice near the edge of Mars' south polar cap.
- Archaeology
Old legend dies hard
People who first entered King Tutankhamen's tomb did not suffer from a legendary curse but instead lived long lives.
- Chemistry
Delivering the Goods
Experimental gene-delivery therapies generally use viruses to shuttle genetic material into cells, but some researchers are devising ways to avoid using the sometimes-risky viruses.
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19206
Your article has a picture of a “deer stone.” On it are engraved designs of reindeer that bear an astonishing resemblance to a tattoo borne by the 2,400-year old mummy discovered in 1993 in central Asia. Was this noticed by the researchers? Michelle BlanchardOlympia, Wash. Absolutely. William Fitzhugh, an expedition leader, says he was struck […]
- Anthropology
Southern Reindeer Folk
Western scientists make their first expeditions to Mongolia's Tsaatan people, herders who preserve the old ways at the southernmost rim of reindeer territory.
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19159
I read your article with great interest. There was a minor emergence of periodical cicadas this year in the area. However, despite what the article says, I don’t believe it was a brood emerging 4 years early. In 1983, 4 years before the last major emergence, there was a similar minor emergence. The 2000 emergence […]
- Math
A Perfect Collaboration
It seems an unlikely pairing. One was the most prominent mathematician of antiquity, best known for his treatise on geometry, the Elements. The other was the most prolific mathematician in history, the man whom his eighteenth-century contemporaries called “analysis incarnate.” Together, Euclid of Alexandria (c325–c265 BC) and Leonard Euler (1707–1783), born in Switzerland and at […]
- Humans
From the January 14, 1933, issue
NEW TYPE OF ATOM-SMASHING GENERATOR NEARS COMPLETION The new type of electrostatic high-voltage generator being constructed by the Massachusetts Institute of Technology at Round Hill, Mass., with a Research Corporation grant will be in operation in a few weeks. Dr. R.J. Van de Graaff, its inventor, President Karl T. Compton of Massachusetts Institute of Technology, […]
- Humans
World Development News
SciDev.Net offers news, opinion, and information about science and technology, particularly those aspects that affect developing countries around the world. The Web site maintains extensive “dossiers” on such topics as research ethics, climate change, indigenous knowledge, genetically modified crops, and intellectual property, with more to come. Go to: http://www.scidev.net/
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19219
We’re not surprised they found sugar in the middle of a Milky Way! Gayle Hunt and David Dawson Seattle, Wash.
- Health & Medicine
Moms’ POPs, Sons’ Problems: Testicular cancer tied to a fetus’ pollutant contact
Women who've had substantial exposure to certain environmental pollutants are more likely than other women to bear sons who develop testicular cancers.
- Chemistry
Jet Streams: Droplet behavior captured by high-speed camera
A series of images has captured charged droplets spouting microscopic jets of fluid, a phenomenon that was proposed by Lord Rayleigh in 1882.
