!! OMG, of course: Revolving Door Generator !!

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A Dutch cafe, Natuurcafé La Port, has installed a revolving door that is not only heat-efficient but also generates power as you walk through it. It will generate approximately enough energy to power one house. It’s not a ton, but it’s something!
Via GIZMODO.

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1 Comment on "OMG, of course: Revolving Door Generator"

  1. OMG thats my idea, i alway hate it when its winter and people leave a cafe door open and you get a cold chill sitting down, damn! hahaha good work!

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