Uncategorized
- Materials Science
Soybeans could beef up plywood glues
Researchers have replaced animal protein with soybean protein in experimental plywood glue, potentially reducing cost and health worries.
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From the January 10, 1931, issue
ANTHROPOLOGIST IS ELECTED NEW A.A.A.S. PRESIDENT Dr. Franz Boas, noted anthropologist of Columbia University, was elected president of the American Association for the Advancement of Science for 1931, during the Cleveland meeting. Dr. Boas is one of the leading figures in the field of anthropology. He has been engaged in this work throughout a very […]
- Math
Folding Maps
Anyone trying to refold an opened road map is wrestling with the same sort of challenges confronted by origami designers and sheet metal benders. The problem of returning a creased sheet to its neatly folded state gets tougher when you’re not sure if the sheet can be folded into a flat packet and when you’re […]
- Astronomy
Astronomers find two planetary systems
Each of the newly discovered systems features a star roughly similar to the sun and a bizarre entourage of planets and possibly a failed star that may provide fresh insight into planet formation.
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18916
In your article “Do meat and dairy harm aging bones?” (SN: 1/13/01, p. 20), there was no mention of controls for vitamin D absorption. Differential exposure to sunlight or to dietary sources of vitamin D within the study populations could account for some of the differences in rate of bone loss. Brenda Gray County Dublin, […]
- Health & Medicine
Do Meat and Dairy Harm Aging Bones?
Two studies have contradictory findings about the impacts of animal protein on bones in elderly people.
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Rediscovering the Maya
For an entertaining excursion into the language, calendar, architecture, and culture of ancient Maya society, try the “Rabbit in the Moon” Web site. You’ll also learn about the Maya myth that inspired the site’s name. Go to: http://www.halfmoon.org.
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From the January 3, 1931, issue
STRANGE SEA FLOWERS BLOSSOM ON REEF Long ago some observant writer remarked that in the sea, many of the plants look like animals and many of the animals, like plants. Support for this view can easily be found in the strange sea urchin pictured on the cover of this issue of the SCIENCE NEWS LETTER. […]
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Migraine: What a Pain!
About one in 10 Americans, most of them women, suffer recurrent bouts of intense, often debilitating headaches–a syndrome known as migraine. The Journal of the American Medical Association has developed a Web site that serves as a repository of background information and news of use to migraine victims and their families. Keep up with the […]
- Math
Folding Maps
Anyone trying to refold an opened road map is wrestling with the same sort of challenges confronted by origami designers and sheet metal benders. The problem of returning a creased sheet to its neatly folded state gets tougher when you’re not sure if the sheet can be folded into a flat packet and when you’re […]
- Earth
Lake sediment tells of Maya droughts
Sediment cores taken last year from the bottom of a lake on Mexico's Yucatán peninsula indicate that a series of extended droughts coincided with major cultural upheavals among the Mayan inhabitants of the area.
- Earth
Sediments show bipolar melting cycle
Both the North and South Poles have experienced regular and simultaneous periods of significant melting during the past 3 million years, according to sediments from the ocean floor at high latitudes.
