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  1. R

    Piezoelectric Crystal Shoes?

    It takes 120 J of energy to light two 60-watt light bulbs for 1 second, right? And the average phone takes 18000 Joules of energy to completely charge so that's only 150 steps! ... I'm sure there is something wrong with that line of thought, haha
  2. R

    Piezoelectric Crystal Shoes?

    I was inspired by this article http://science.howstuffworks.com/environmental/green-science/house-music-energy-crisis1.htm to wonder if one could put piezoelectric crystals in the sole of a shoe and perhaps harness the energy to charge their iPod? Can someone let me know if this is feasible...
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