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Gravitational and kinetic energy at work  RSS feed

 
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pollinator
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Yes, Walter Lewin is still alive, although his hair is greyer now.
 
when your children are suffering from your punishment, tell your them it will help them write good poetry when they are older. Like this tiny ad:
Rocket Canner Fryer and Forge - Draft Plans
https://permies.com/t/64465/Rocket-Canner-Fryer-Forge-Draft
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