Friday, January 21, 2011
Power cord lights up as electricity flows
[ Fri, 21 Jan 2011 08:11:05 EST ]
Here's one of electricity's dirty little secrets: You can't see it moving, so it's hard to know when you're wasting a bunch of it.
[ Fri, 21 Jan 2011 08:11:05 EST ]
Here's one of electricity's dirty little secrets: You can't see it moving, so it's hard to know when you're wasting a bunch of it.
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