Arizona planetary scientists plot how an asteroid can rock your world

[Sequoia]

As the bumper sticker says, one nuclear bomb can ruin your whole day. But one asteroid can be far worse (just ask the dinosaurs).

For the world's Chicken Littles, scientists at the University of Arizona's Lunar and Planetary Laboratory have devised a handy Web-based impact calculator, at www.lpl.arizona.edu/impacteffects.

Plug in a rock's size, speed, density, angle of approach and your distance from the impact, and the software tells you whether you'd be history.

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http://sfgate.com/cgi-bin/article.cgi?f=/c/a/2004/04/13/MNGGG645MK1.DTL

(Fun stuff, SF is destroyed...sorry)