Monday, 19 Sep, 2011 Environment
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Bottles of Clean Water Deliver Light to Millions of People in the Philippines

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A group of MIT students discovered that a plastic bottle filled with clean water and some bleach can be used to illuminate a small space. MyShelter Foundation took the idea and began distributing its "solar bottle bulb" to homes located in the Philippines.

It would be interesting to note that the foundation's goal is to deliver alternative sources of energy to a million homes across the nation by 2012.

To be able to light up bottled of water, it is necessary to cut holes in the metal roofs of dwellings and place one bottle in each hole with the upper half facing the sky. The representative of the foundation said that the purified water disperses the lights in virtually all directions, offering a level of brightness equivalent to a 55-watt electric light bulb.

The use of bleach prevents the development of mold in the bottle, thus allowing it to last up to 5 years. Despite the fact that the invention delivers light only during the day, it managed to help a lot of families in Manila and other cities in the Philippines. This is because most of houses in the country are located close to each other and very little sunlight can pass through the windows.

While promoting the new sustainable way of delivering light to homes, the MyShelter Foundation is training people in the country on how to make and mount the solar bottle bulbs.

[via Treehugger]

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