Uncategorized
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Light Impacts
Depending on when it's encountered, blue light can be more effective than other hues (or even white light) at waking people, setting their biological clocks, and maximizing visual acuity.
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19683
The lenses in our eyes yellow as we age. Does this affect the light-mediated regulation of our body clocks? Could it explain any age-related dysfunction? Mike SpecinerActon, Mass. Indeed, it could. The progressive browning of tissue in the eye can end up “acting like yellow-tinted sunglasses,” says Elizabeth R. Gaillard of Northern Illinois University. Moreover, […]
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Violent Developments
New research has identified a spectrum of interacting elements that contribute to impulsive violence in young people.
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19682
While I applaud the work that is looking at the biochemical correlates of aggressive and delinquent behavior, it is important to emphasize that environmental factors still predominate when we are searching for the roots of violence. Although there is no single factor underlying aggressive behavior in children, my own 30-plus years looking into the relationship […]
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- Humans
Letters from the May 20, 2006, issue of Science News
Forget dessert In “Got Data? Consuming calcium, dairy doesn’t keep off weight” (SN: 3/11/06, p. 147), you report, “Every 4 years, each volunteer completed a questionnaire about his body weight and dietary habits.” Any dieter knows that it is next to impossible to remember what one has eaten 4 days ago. Any more details on […]
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From the May 16, 1936, issue
Long-lived cicadas, zinc coatings for wire, and schizophrenia's cause.
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Darwin and Evolution
This online exhibit from the American Museum of Natural History is a fascinating account of how Charles Darwin developed his theory of evolution and how that theory is regarded today. The site includes a number of audio and video files and a link to a webcam that features a Galápagos tortoise. Go to: http://www.amnh.org/exhibitions/darwin/?src=e_f
- Humans
Indy’s Best: Young scientists cross the finish line
High school students from 47 countries gathered in Indianapolis last week to compete for scholarships and other prizes in the 2006 Intel International Science and Engineering Fair.
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Eye for Growth: New protein prompts optic nerve regrowth
A protein recently isolated from white blood cells could offer a new way to repair nerve cells damaged by injury or disease.
- Animals
Jay Watch: Birds get sneakier when spies lurk
A scrub jay storing food takes note of any other jay that watches it and later defends the hoard accordingly.
