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
  • Add Memory
  • Share This Entry
Threaded | Top-Level Comments Only

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.
  • Add Memory
  • Share This Entry
Threaded | Top-Level Comments Only

Profile

thewayne: (Default)
The Wayne
Spare Brains Games

March 2026

S M T W T F S
1 234567
89 1011 121314
1516 17 18 192021
2223 2425262728
293031    

Most Popular Tags

Page Summary

Style Credit

Expand Cut Tags

No cut tags
Page generated Mar. 26th, 2026 07:01 am
Powered by Dreamwidth Studios