Coke Cola plastic bottles, which have been produced and recycled everyday, are given a new mission in solar energy industry.
The cheap, solar-powered bulbs are actually just clear Coke Cola plastic bottles filled with a mixture of purified water and chlorine or bleach which is commonly used in household cleaning products. Each bottle is then inserted halfway into a hole made on the roof of a house. The bulb gives off light equivalent to a 55-watt electric lamp as the water inside the bottle refracts sunlight and other exterior light. Read more on Solar bottle bulbs light up Philippines suburb.
It's a roof project, actually, by a student in Massachusetts Institute of Technology. Jesus, what a darn good idea!
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