Uncategorized
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Obesity may aggravate flu
At least in mice, obesity can greatly exaggerate the severity of flu by impairing the body's immune response.
- Planetary Science
A Martian haven for life?
Images taken by two Mars spacecraft suggest that a volcano on the Red Planet erupted long ago at the confluence of two riverbeds, indicating that the region had two of the prequisites for life: heat and water.
- Tech
Special Treatment
Researchers are developing nanosize metallic particles that can break down soil and groundwater contaminants faster and more cheaply than any other existing technology.
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19544
Your article on the reaction of nanoparticles of iron with trichloroethane (TCE) contaminating an aquifer, states that the TCE is converted “into ethane.” What happens to the chlorine stripped off the TCE? Is it converted into insoluble inorganic compounds or is it available to react with another aquifer contaminant to possibly form another toxic substance? […]
- Astronomy
Dark Influence
A study of galaxy clusters tests whether dark matter particles can collide with each other, while other observations show that dark matter doesn't behave as expected near the centers of galaxies.
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19543
This article made me wonder about the possibility of a continuum of matter. Could part of the problem in identifying dark matter be that only part of the spectrum of matter is observable by our senses and sensors? As there are sound waves above and below the frequencies we can hear, and light waves we […]
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- Humans
From the April 13, 1935, issue
A giant meteorite discovered in Kansas, gasoline made from coal in Germany, and elastic rock layers deep in the earth.
- Math
Paper Enigma
The enigma machine was used by Germany during World War II to encrypt and decrypt messages. Created by Mike Koss, the plans and detailed instructions offered on these Web pages allow you to build your own fully functioning, paper version of this infamous machine. Go to: http://mckoss.com/Crypto/Enigma.htm
- Earth
Rice with a Human Touch: Engineered grain uses gene from people to protect against herbicides
A human gene inserted into rice enables that plant to break down an array of chemicals used to kill weeds.
- Animals
Funny Walks: Cranes bob, bob, bob along when hunting
The jerky neck motions of a whooping crane may help it spot food by keeping its head motionless about half the time.
- Physics
Built for Speed: Novel transistor design spurns limits
The novel design of what's now the world's fastest transistor opens the possibility of even speedier devices that could operate as fast as a trillion cycles per second.
