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LED's used to treat contaiminated water
The concept is old but the implementation is new. Using ultraviolet light to destroy bacteria. I was wondering about this last night (after hearing Dean Kamen mention it a couple times) and wondering why someone didn't just create a led that emitted the proper light. It's a pretty neat concept and even cooler when you can read what technologies can be created from these devices.
Articles Another Link
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If either a public officer or any one else saw a person attempting to cross a bridge which had been ascertained to be unsafe, and there were no time to warn him of his danger, they might seize him and turn him back without any real infringement of his liberty; for liberty consists in doing what one desires, and he does not desire to fall into the river. -Mill
Last edited by Adam Y. : 05-04-2005 at 14:00.
Reason: Just changed Led to LED
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