Uncategorized
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Stress rate revised for Vietnam vets
A reanalysis of data from a 1988 study of Vietnam veterans finds that 19 percent developed war-related post-traumatic stress disorder, a smaller proportion than had previously been estimated.
- Chemistry
Protection from poisons
An Alzheimer's disease drug could be protective against the deadly effects of two nerve agents.
- Health & Medicine
Sauna use among dads linked to tumors in children
Men who expose themselves to excessive heat in the weeks before they conceive children may place their future offspring at unnecessary risk of brain cancer.
- Astronomy
Cosmic bigness
Astronomers have found the largest structures ever discovered in the universe.
- Paleontology
Bone Hunt
Science News reporter Sid Perkins recounts the trials and tribulations of digging for dinosaurs in central Montana.
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19722
There is a serious limitation to the “print clock” technique described in this article that can probably be addressed. The method proposed holds good only for works with small print runs (such as expensive maps), where the damage to the printing surface in successive printings is minor in comparison to deterioration over time. Damage to […]
- Humans
Mutant Maps
Struck by an analogy between genetic mutations and flaws in antique printed documents, a biologist has devised a method to analyze such flaws to pinpoint publication dates of rare, undated documents.
- Humans
Letters from the August 26, 2006, issue of Science News
Dust to dust In “Not a planet?” (SN: 6/17/06, p. 382), Alycia Weinberger says, “The discovery of a disk around the planetary-mass companion to 2M1207 should be a bit of a relief to planet-formation theorists” because it casts doubt on the object being a planet. But wouldn’t our early solar system have been composed of […]
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- Humans
From the August 15, 1936, issue
Art fit for a king, healing wounds, and cops and robbers in the blood.
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Microscope Imaging
The Exploratorium in San Francisco provides images of a wide range of microscopic critters. The Web site also includes breathtaking movies of sea urchin fertilization, frog development, zebrafish embryo growth, and more. Go to: http://www.exploratorium.edu/imaging_station/
- Materials Science
Logos to Go: Hydrogel coatings provide removable color
A biodegradable coating could add a temporary splash of color to sports fields, buildings, or even people's bodies.
