TOP 100 SCIENCE SITES
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| Device on Knee Can Produce Electricity WASHINGTON (AP) -- Call it the ultimate power walk. Researchers have developed a device that generates electrical power from the swing of a walking person's knee. With each stride the leg accelerates and then decelerates, using energy both for moving and braking.... hosted.ap.org |
Algae to Blame for Red Rivers in China BEIJING (AP) -- An algae bloom, not chemical pollution, was to blame for red and foamy water in parts of a major river system in central China, environmental officials said Thursday.... hosted.ap.org |
Kissing the Earth Goodbye in About 7.59 Billion Years What exactly will happen to our planet when an aging Sun expands and brightens? nytimes.com |
The question: When is Doomsday? Helen Pidd: It is not just scary cults who believe the end is nigh guardian.co.uk |
NASA not worried about Soyuz space capsule's bumpy ride home WASHINGTON (AP) -- An American astronaut described her descent to Earth in a wayward Soyuz space capsule over the weekend as "pretty dramatic," in an audio recording released Tuesday by NASA.... hosted.ap.org |