Huh. How we got leak-proof (relatively speaking) batteries

Apr. 23rd, 2008 06:26 pm
thewayne: (Default)
[personal profile] thewayne
We have Ray-o-Vac to thank for it, the sealed battery was invented in 1940 and all production initially went into WW II.

http://www.wired.com/science/discoveries/news/2008/04/dayintech_0423
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Date: 2008-04-24 06:00 am (UTC)
silveradept: A kodama with a trombone. The trombone is playing music, even though it is held in a rest position (Default)
From: [personal profile] silveradept
And all our handhelds thank him for coming up with such an idea.
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