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Bringing Light To The Poor, One Liter At A Time
A bottled liter of water with a few teaspoons of bleach is proving to be a successful recipe for dwellers in the light-deprived slums of the Philippines. The simple technology is spreading sunlight in places where it has never been, and saving residents money at the same time.
Invented by MIT students, a neat demonstration of applied physics that provides about 60 watts of light for about five years.


Posted by: Sherry 2011-08-05
http://www.rantburg.com/poparticle.php?ID=327518