All Stories by Science News
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19273
There is a striking similarity in the wave patterns of the ash plume on the cover of the Sept. 13 issue (above) and those in the gas of the Perseus Cluster pictured in this article. Could it be that volcanoes produce sound waves we can’t hear but can see in the plume? Paul HeinsGainesville, Fla. […]
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19272
I read this article with interest. Can you tell me what contributes to these deposits in arteries? Julie WinslettDahlonega, Ga. It’s not ingestion of calcium, at least in people with normal kidney function, says Paolo Raggi of Tulane University in New Orleans. Rather, the condition stems from damage to vessel walls wrought by high blood […]
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19271
There is a striking similarity in the wave patterns of the ash plume on the cover of the Sept. 13 issue (above) and those in the gas of the Perseus Cluster (“A Low Note in Cosmos: Sounding out a new role for black holes,” SN: 9/13/03, p. 163: A Low Note in Cosmos: Sounding out […]
- Earth
Product Health and Safety
What’s under your kitchen sink, in your garage, in your bathroom, and on the shelves in your laundry room? Do these household products pose a potential health risk to you and your family? The National Library of Medicine’s new Household Products Database offers users information on the potential health effects of about 2,000 ingredients contained […]
- Humans
From the September 9, 1933, issue
FLEET AS MERCURY The laboratory has yielded a photograph of striking beauty showing Dr. Joseph Slepian and Leon R. Ludwig, Westinghouse engineers, examining a product of their research. They have developed a new method of controlling mercury arc devices which is said to be more positive and many times faster in action than methods now […]
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19340
The multiple-origin theory of ancient New World immigration reported in this article has a long and respectable scholarly history, though it’s tarnished from time to time by enthusiasts for one race or another. For an early popular treatment, see Men out of Asia by Harold Sterling Gladwin (1947, McGraw-Hill). Gladwin even mentioned the Pericú, who […]
- Humans
From the September 2, 1933, issue
URN PATTERNS EXISTED LONG BEFORE URNS WERE MADE Urns, whether for flowers or for funeral ashes, have always had much the same pattern; so much so, that the shape immediately and automatically evokes the name. But that shape existed on the earth long before the earliest neolithic potter smoothed out the walls of the first […]
- Earth
Live from the Aquarium
The Monterey Bay Aquarium in California offers Webcam views of its kelp forest, penguins, and sea otters, along with underwater glimpses of its open ocean exhibit and images of the ocean waters along Cannery Row, just off the aquarium’s decks. The cameras are on from 7 a.m. to 7 p.m., PST, so they capture the […]
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19270
The idea of compensating tidal forces using a ring of compact matter isn’t quite “something no one has shown before.” A concept based on the same principles was analyzed 20 years ago by physicist Robert L. Forward, who published the details in a paper in Physical Review and his science-fiction novel Dragon’s Egg. Forward discussed […]
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19339
This article suggests that the most likely transportation system of the sandstone across the continent would have been a river system. Could it have been due to tectonic movement instead? Edward B. FanUpper Marlboro, Md. Both Utah and the Appalachians are on the North American plate, so there’s no tectonic boundary between them. Sediments from […]
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19269
This article on using magnetic fields to map and possibly treat brain disorders contrasted sharply with the article a few pages earlier about magnetic fields inducing cells to develop tumors (“Cells proliferate in magnetic fields,” SN: 9/23/00, p. 196: Available to subscribers at Cells profilerate in magnetic fields). I would strongly suggest that both the […]
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19338
Medicine needs a new paradigm. The findings described in this article suggest something better than potentially important agents and a new class of drugs to reduce cancer risk, as observed by Barnett Zumoff. If you want to reduce your cancer risk, simply do what the Polish women mentioned in the story do: Eat more cabbage, […]
