Uncategorized
- Tech
Solar Surgery: Sunlight acts like laser
By channeling sunlight down a fiber optic cable, scientists have produced laserlike beams that can burn tumors off major organs.
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19093
Cornell University entomologist Jeffrey G. Scott sees a cockroach contraceptive as still being a long way off. He may wish to investigate such a product that has been very effective and on the market for years. I can personally attest to its effectiveness. The common “flea bomb” that one gets from a veterinarian–the kind that […]
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Milestones for Malaria: Parasite, mosquito genes decoded
Unraveling the DNA of a malaria-causing parasite and of a mosquito that carries it may suggest new ways to combat the deadly disease.
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19118
As a former director of engineering of a defense-products company, I’m very aware of the explosive nature of sodium azide. I know that there have been serious explosions in industries (including the airbag industry) that use metal azides. A few reasons sodium azide may have been selected for use in airbags are it releases gas […]
- Health & Medicine
Lingering legacy of Sept. 11, 2001, on firefighters’ health
Of the New York firefighters involved in the rescue and recovery effort after last year's terrorist attacks, relatively few have developed chronic coughs and respiratory problems, but among those who did, the problems seem unusually severe.
- Astronomy
There’s life in the old galaxies yet
An unexpectedly large number of supermassive black holes in old galaxy clusters suggests these elderly groupings of galaxies aren't as quiescent as had been expected.
- Materials Science
Carbon nanotubes do some bonding
Researchers have welded together carbon nanotubes to make junctions that could be useful in the construction of tiny electronic devices.
- Health & Medicine
Challenges in testing for West Nile virus
The Food and Drug Administration is trying to figure out how blood banks can detect signs of West Nile infection in blood donors and, eventually, test donated blood for the virus itself.
- Anthropology
Iceman mummy shares last meals
DNA analyses of food remains from the intestines of a 5,000-year-old mummified man found in Europe's Tyrolean Alps indicate that his last two meals included meat from mountain goats and red deer, as well as wild cereals.
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19092
This article may be confusing to readers who don’t know the quantitative difference between an ice age and a little ice age, as referred to in the story. During the last ice age, the average cooling in the Northern Hemisphere was about 5C, but the cooling during the last little ice age was only about […]
- Tech
Beads and glue defeat forgers
Researchers have devised a cheap, translucent material that, when embedded in credit cards and other items, would endow the items with unique identifiers that are almost impossible to tamper with or copy.
- Earth
Moderate flows help carve rivers
Measurements of erosion in a rocky river channel in Taiwan suggest that the day-to-day flow of water accounts for more rock wear there than occasional catastrophic floods do.
