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User: jbaker

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  1. Physics for dummys on Batteries Powered by Leftover Food · · Score: 1

    P=workdone/time
    5 calories/gram of sugar (being nice here)
    1 calorie=4.184 joules (not kilo joules. If you yankees worked in metric like everyone else in the world we wouldn't have this problem)
    therefore 50g of sugar has 5*50*4.184=1046 joules
    once again joules not kilo joules.
    P=workdone/time
    therefore assumming 100% efficiency (good luck) the maximum power obtainable over eight hours is
    1046 joules/(8*60*60 seconds)
    =36mWatts. Oh my god this is great we can run a 36mWatt light bulb for 8 hours with 50g of sugar.