Uncategorized
- Chemistry
Money Allergies: Two-toned euro coins shed metallic allergen
The two-alloy composition of some euro coins makes them release large amounts of nickel, a common skin allergen.
- Humans
From the September 10, 1932, issue
COVER PICTURE PURSUED OVER NEW ENGLAND HILLS By chasing a blue hole in the screen of cloud that covered part of New England, a party of eclipse observers that included Prof. John Q. Stewart, Princeton astronomer, successfully saw the corona in clear sky and obtained the News Letter‘s cover picture. Originally they planned to view […]
- Tech
Future Tech
Science fiction and fact seem to mingle at this Web site, which provides entertaining glimpses of a variety of futuristic technologies, from wearable computers to electronic healing. Links lead to other Web sites that offer additional information. Go to: http://www.21stcentury.co.uk/technology/index.asp
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19027
Around the early 1950s, during the intermissions of the Sunday radio broadcasts of the New York Philharmonic Orchestra, the announcer introduced recordings of extremely complicated birdcalls. The sounds were obviously somewhat comparable to various musical instruments and marvelously complex. Perhaps one of your bird librarians might be interested in finding the source of the early […]
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Save Our Sounds
Some 14 libraries around the world have built up substantial collections of natural sounds, from bird songs to fish hums.
- Math
A Fair Deal for Housemates
A triangulated triangle with a proper Sperner labeling and an odd number (3) of elementary triangles possessing all three labels (shown in color). Four friends move into a house and find they must choose among four rooms of different size and quality. Instead of sharing the rent equally, they decide to divide the total so […]
- Health & Medicine
Targeted Therapies
Tailoring prescriptions based on a person's genes may help reduce side effects and allow the development of more personalized medicine.
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19115
This article comments that factors other than drought, such as disease, may have been at work in accounting for the disappearance of some Anasazi groups. If it is found that disease was a major factor, it would be unprecedented. As far as has been determined, the Anasazi didn’t experience exotic, culture-busting pathogens until Columbus made […]
- Archaeology
Could the Anasazi have stayed?
New computer simulations of the changing environmental conditions around one of the Anasazi cultural centers in the first part of the last millennium suggest that drought wasn't the only factor behind a sudden collapse of the civilization.
- Earth
Chinese records show typhoon cycles
Historical records compiled by local governments along China's southeastern coast during the past 1,000 years suggest that there's a 50-year cycle in the annual number of typhoons that strike the area.
- Earth
Cave formations yield seismic clues
Analyses of toppled stalagmites and other fallen rock formations in two Israeli caves may provide hints about the rate of ancient earthquakes in the area.
- Animals
Many fish run on empty
Many fish eat all the time, while some others spend their days going from brief feast to lengthy famine.
