Uncategorized
- Humans
From the November 16, 1935, issue
Bears on a diet, aluminum-plated steel, and a new test of relativity theory.
- Math
Pentomino Pursuits
Pentominoes are flat shapes, or tiles, formed by joining together five unit squares. There are 12 different pentominoes. This set of simple geometrical objects has inspired a variety of puzzles and games, including the addictive pastime known as Tetris. The pentomino Web site, created by students of Belgian math teacher Odette De Meulemeester, provides all […]
- Health & Medicine
Novel Approach: Cancer drug might ease scleroderma
The chemotherapy drug paclitaxel, when given to mice, shows signs of impeding the skin disease scleroderma.
- Earth
Global Wetting and Drying: Regions face opposing prospects for water supply
In the next half century, rivers and streams in some parts of the world will diminish in flow, while waterways elsewhere rise in output, according to a new analysis of climate simulations.
- Astronomy
Infrared telescope spies mountains of star creation
Viewing a star-making region in the infrared, the Spitzer Space Telescope has captured mountains of gas and dust being eroded by winds and radiation from a massive star, triggering waves of star birth.
- Tech
Hidden in Disorder: Chaos-encrypted information goes the distance
Scientists have demonstrated that a message encrypted in a chaotic laser signal can be transmitted more than 100 kilometers through a commercial optical-fiber network.
- Animals
Tszzzzzt! Electric fish may jam rivals’ signals
An electric fish appears to sabotage a rival's electric signals as a fight starts. With Audio and Video.
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Way to Glow: Butterfly-wing structure matches high-tech lights’ design
The blue-green wings of the swallowtail butterfly harbor an intricate optical system with a design reminiscent of the latest in light-emitting diode technology.
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Mental Meeting of the Sexes: Boys’ spatial advantage fades in poor families
The frequently observed superiority of boys to girls on tests of spatial skill disappears in children of poor families, indicating that this mental ability responds more sensitively to environmental influences than has been assumed.
- Paleontology
Ancient Grazers: Find adds grass to dinosaur menu
Analyses of fossilized dinosaur feces in India reveal the remains of at least five types of grasses, a surprising finding that's the first evidence of grass-eating dinosaurs and an indication that grasses diversified much earlier than previously recognized.
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The picture caption in this article states, “This phytolith, which was extracted from fossilized dinosaur dung unearthed in India, indicates that the reptiles dined on grasses.” I do believe that dinosaurs aren’t classified as reptiles. Patricia GriffithAmerican Canyon, Calif. Confusion in this area stems from the fact that not all ancient reptiles were dinosaurs. But […]
- Health & Medicine
Our big fat cancer statistics
A new analysis of data from a 2002 report shows that obesity is the second-largest cause of cancer in the United States.
