Uncategorized
- 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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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.
- Astronomy
Cosmic Primitive: Old star sheds light on early stellar formation
Astronomers have found one of the most chemically primitive stars known, dating to just a few hundred million years after the Big Bang.
- Anthropology
Stone Age Cutups: Deathly rituals emerge at Neandertal site
A new analysis of 130,000-year-old fossils found in a Croatian cave a century ago suggests that Neandertals ritually cut up corpses of their comrades and perhaps engaged in cannibalism.
- Health & Medicine
Messy Mix? Combined vaccine yields fewer antibodies
Some common childhood vaccines don't seem to work as well when administered with, or at the same time as, other vaccines.
- Paleontology
Egg-Citing Discovery: Dinosaur fossil includes eggshells
The first-ever find of shelled eggs inside a dinosaur fossil bolsters ideas about the reptiles' reproductive physiology.
