113,423+ results
113,423+ results for:
- Astronomy
Poof goes an atmosphere
Blasted by the heat and radiation from its parent star, a planet 150 light-years from Earth is literally blowing off its atmosphere.
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Bacteria do the twist
A newly identified bacterial protein generates the sinuous shapes of some bacteria.
- Tech
Diagnosing the Developing World
Researchers are learning how to adapt sophisticated technologies to meet the health-care needs of the developing world.
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Code Breakers
Chemical tags applied to proteins that DNA wraps around regulate genetic activity.
- Animals
Where’d I Put That?
Birds that hide and recover thousands of separate caches of seeds have become a model for investigating how animals' minds work.
- Math
Turning a Snowball Inside Out
Turning a sphere inside out without allowing any sharp creases along the way is a tricky mathematical maneuver. Carving an intricate snow sculpture depicting a crucial step in this twisty transformation presents its own difficulties. This was the challenge facing a team led by mathematician Stan Wagon of Macalester College in St. Paul, Minn., last […]
- Health & Medicine
Calcium Superchargers
Foods such as yogurts supplemented with fiberlike sugars are developing into the latest wave in functional foods–commercial goods seeded with ingredients that boost their nutritiousness or healthfulness. Makers of foods doctored with these unusual, nearly flavorless sugars claim that their products improve the body’s absorption of calcium in the diet, thereby offering bones a treat. […]
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From the February 3, 1934, issue
alt=”Click to view larger image”> SHORT-WAVE PHONE SYSTEM SERVES BRIDGE BUILDERS Curiously, radio is helping to build a bridge. Special short-wave transmitting and receiving sets make possible communication among groups of contractors scattered on land and water along the eight-and-one-quarter-mile route of work on the San Francisco-Oakland bridge. These men on the job also talk […]
- Astronomy
A Habitable Planet
NASA offers kids a chance to search for and build a fictional planet on which people could live. This multimedia, interactive Web site guides students through a sequence of role-playing steps, starting with observations of the effects that changes to Earth can have and what’s needed for survival. Go to: http://astroventure.arc.nasa.gov/
- Science & Society
Money Crunch: Tight budget leaves scientists disappointed
In the federal budget for FY 2005, research and development funding for defense and homeland security gets a boost, but overall investment in science and technology is meager by comparison.
- Ecosystems
Mangrove Might: Nearby trees boost reef-fish numbers
Coastal mangroves give an unexpectedly important boost to reef fish.
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Gassing Up: Oxygen’s rise may have promoted complex life
The increasing amount of oxygen in Earth's atmosphere may have driven the emergence of complex life.
