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
#2 We just spend $300 a pop to install a couple of solartubes for some dark corners of some hallways. They are quite bright in the daytime - even in cloudy weather.
Cool that someone can get to use this type of thing for a lot less.
Posted by: CrazyFool
2011-08-05 13:54
#1 Not exactly a new idea, rather a new twist on an idea that's been around here for a while...Solatube.