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Making Light with Two-Liter Bottles

I love the ingenuity here. Using two-liter bottles filled with water and two lids full of bleach, one Brazilian engineer is lighting his entire workshop during the daylight hours. This simple contraption provides the lighting equivalent of a 50-watt bulb, which is obviously not that useful at night but great for use in a shed or garage that lacks an electrical hookup. His idea has now spread through the entire neighborhood.

Credit: YouTube