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2-Liter Bottle as a 50 Watt Light Bulb
Wed, 2013-03-13 22:34 — Amanda ColeSubmitted by Bill Greenberg
Well Done Stuff !
Here’s a way to brighten up enclosed spaces in an environmentally friendly way. The power of the sun is harnessed using a bottle full of water. Quite simply they’re used 2-liter soda bottles. They’ve been filled with water along with two caps worth of bleach to keep microorganisms out. The cap is then covered with a film canister to protect it from the sun. They are installed through holes in the roof, and in full sun they put out the equivalent of a 50 watt incandescent light bulb.
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