Archive: 02/20/2008

Fiber-optic booster on a chip

More and more of our communications -- from text messages to high-definition television -- travel over optical fiber. At last count the United States was crisscrossed by more than 80 million miles of it, with ...

Feb 20, 2008 4.6 / 5 (35) 0

Drifting off to sleep

Researchers studying the resting behaviour of wild sperm whales have found evidence that whales literally 'drift' off to sleep.

Feb 20, 2008 4.2 / 5 (5) 1

Who's Orbiting the Moon?

The space around Earth is a busy place, as teeming with traffic as a roundabout. More than 500 active satellites are bustling about up there right now. Some are transmitting radio, television, and telephone ...

Feb 20, 2008 4.8 / 5 (29) 1