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Offgrid Pocket Calculator

 
Adrien Lapointe
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posted 10 years ago
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No electrical power required, no batteries... a mechanical calculator. Really cool, but not cheap ($1k on ebay).

 
Dale Hodgins
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posted 10 years ago
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At a fruit market in Chinatown, there is a lady whose hand speed is faster than Bruce Lee. Her abacus skills put most modern inventions to shame. Might not work so well as a mortgage calculator.
 
Do the next thing next. That's a pretty good rule. Read the tiny ad, that's a pretty good rule, too.
Your suggestions have been mashed into the PIE page - wuddyathink?
https://permies.com/t/369924/suggestions-mashed-PIE-page-wuddyathink
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