Uncategorized
- Health & Medicine
Staring into the Dark
Amid a growing array of medications for treating insomnia, sleep researchers point to large gaps in their knowledge about which of these medicines work best and for how long they remain effective.
- Math
Problems to Sharpen the Young
Medieval brainteasers have kept students and other people puzzled and entertained for centuries.
- Humans
Willis Harlow Shapley (1917-2005)
Willis Harlow Shapley, a longtime member of the Science Service Board of Trustees, died Oct. 24.
- Humans
Letters from the November 19, 2005, issue of Science News
It’s not there “Organic Choice: Pesticides vanish from body after change in diet” (SN: 9/24/05, p. 197), as presented, doesn’t address the statement made in the headline. The article shows only that on days when no pesticides are ingested in food, no pesticides are excreted in urine. Charles WyttenbachLawrence, Kan. Sex differences I am dismayed […]
- 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.
