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submitted 1 year ago by sam_uk@lemmy.world to c/solarpunk@slrpnk.net

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Back side of perovskite panel achieves more than 90 per cent of the efficiency of the front side

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[–] Hotdogman@lemmy.world 3 points 1 year ago

It should have been obvious. A double-sided dildo creates twice as much friction.