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By Science News

Magazine Issue: Vol. 138 No. #24, December 15, 1990

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Questions or comments on this article? E-mail us at feedback@sciencenews.org | Reprints FAQ

A version of this article appears in the December 15, 1990 issue of Science News.

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Related Stories

Health & Medicine
Refurbished heart pacemakers work like new

By Meghan Rosen11 hours ago
Archaeology
Ancient Central Americans built a massive fish-trapping system

By Bruce Bower14 hours ago
Climate
Satellite space junk might wreak havoc on the stratosphere

By Carolyn Gramling19 hours ago

Science News

Science News was founded in 1921 as an independent, nonprofit source of accurate information on the latest news of science, medicine and technology. Today, our mission remains the same: to empower people to evaluate the news and the world around them. It is published by the Society for Science, a nonprofit 501(c)(3) membership organization dedicated to public engagement in scientific research and education (EIN 53-0196483).

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