Uncategorized
- Astronomy
Milky Way gets a new layer
Astronomers propose that 150 billion corpses of sunlike stars may blanket the visible disk of the galaxy.
- Chemistry
Questions of Origin
Two new studies renew controversy about the authenticity of a map that may be the first depiction of North America.
- Materials Science
Vision Quest
Increasing numbers of people with less-than-perfect vision can now wear contact lenses, thanks to innovations in lens design and materials.
- Animals
Bees log flight distances, train with maps
After decades of work, scientists crack two problems of how bees navigate: reading bee odometers and mapping training flights.
- Earth
DDT treatment turns male fish into mothers
Injecting into fish eggs an estrogen-mimicking form of the pesticide DDT transforms genetically male medaka fish into apparent females able to lay eggs that produce young.
- Chemistry
Tums of the Sea
Ocean scientists question whether the seas can handle rising carbon dioxide concentrations.
- Health & Medicine
Novel diabetes strain has rapid onset
Japanese researchers have confirmed that some patients with type 1 diabetes have a novel form of the disease that's not caused by immune cells attacking the pancreas.
- Physics
Black hole recipe: Slow light, swirl atoms
Whirling clouds of atoms may swallow light the way black holes do, possibly giving scientists a way to test the general theory of relativity in the lab, not just in outer space.
- Anthropology
Ancient populations were game for growth
Archaeological evidence of a Stone Age shift in dietary preferences, from slow to swift small game, suggests that the human population rose sharply sometime between 100,000 and 50,000 years ago.
- Anthropology
Drowned land holds clue to first Americans
A map of a now-flooded region charts the path that Asians may have taken to first reach the Americas.
- Humans
Treaty Nears on Gene-Altered Exports
In an effort to help preserve biodiversity, negotiators from 130 nations crafted rules of conduct for international trade in living, genetically engineered organisms.
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From the February 1, 1930, issue
WHOSE MEMORY LIVES IN THIS EGYPTIAN TOMB? The great tomb of an unknown Egyptian who lived about 2800 B.C. has been discovered and entered by the expedition from the Museum of the University of Pennsylvania, working at Meydum, fifty miles south of Cairo. A report just received from the director, Alan Rowe, states that the […]
