Uncategorized
- Math
Pinpointing Killer Asteroids
Two award-winning high school students' projects focused on new methods for pinpointing asteroids locations.
- Humans
From the March 24, 1934, issue
A meteorite photo, the discovery of triple-weight hydrogen (tritium), and a new mirror for movie production.
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Earth Image
Presented by the Universities Space Research Association, this Web site features a new photo, graphic, or illustration every day. Each one deals with an aspect of earth science. Captions provide information about the images and links to related Web material. The archive, dating back to September 2000, includes images of atmospheric phenomena, unusual cloud formations, […]
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It’s Time! Fetal lungs tell mom when to deliver baby
The maturing lungs of a fetus may signal the mother when it's time for labor.
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19398
In this article, the thesis is that wolves hunt in packs because they lose less of a carcass to ravens (37 percent loss per pair versus 17 percent loss per pack). Yet the article also states that it’s more energy efficient for wolves to hunt in pairs and that a pack is not needed to […]
- Animals
Wolf vs. Raven? Thieving birds may drive canines to form big packs
A previously underappreciated reason why wolf packs get so big could be the relentless food snitching of ravens.
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19397
Wait a minute. Your article first indicates a 15.6 percent rise in the U.S. population between 1990 and 2002 but then goes on to claim an increase at “faster rates” in coastal counties: 13.3 percent. Richard LaatschOxford, Ohio The 13.3 percent rise in population is only for the 330 counties that touch the coastline. The […]
- Ecosystems
Coastal Surge: Ecosystems likely to suffer as more people move to the shores
Rapid development and population growth on and near U.S. coastlines in the near future will probably spell trouble for ecosystems in these areas, scientists say.
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19396
This article doesn’t mention that 13 to 20 percent of women with heavy menstrual periods have a common but often undiagnosed bleeding disorder called von Willebrand disease. Because this disorder is often treatable by medication, many of the hysterectomies performed to stop bleeding could be prevented. The National Hemophilia Foundation and its local chapters are […]
- Health & Medicine
Surgical Option: Hysterectomy may top drugs for women with heavy bleeding
Women who suffer from heavy menstrual bleeding and fail to improve on a hormone-based drug fare better if they choose hysterectomy rather than a regimen of other drugs.
- Tech
Miniaturized 3-D Printing: New polymer ink writes tiny structures
A new 3-D printer can build up complex polymer microstructures with features small enough for creating photonic crystals or scaffolds for tissue engineering.
- Planetary Science
Signs of Water Flow: Oceans of data point to ancient Martian sea
A robotic rover on Mars has found strong evidence that some rocks near the Martian equator were laid down by a shallow, ancient ocean, indicating one of the most likely places to look for remains of life on the Red Planet.
