What to make a free source of lighting of?
A from an ordinary transparent plastic bottle. Why not?
We, people of the western civilization, so got used to usual electric lamps that we do not know (or we do not want to know) that in the world nearly a quarter of the population of Earth has in the dwellings in general no light sources. Even windows. Expensively. And in such dwellings it is equally dark both at night, and in the afternoon. No, of course, is lighter from the door opened on the street in the afternoon, but not much more.
So, leisure Americans who, probably, have no place to spend the money counted that only on Philippines of such hovels where in the afternoon darkly as well as at night, there are more than three million. And here, the fund of the famous philanthropist Illak Diaz (Illac Diaz) declared at the beginning of 2011 that until the end of 2012 on Philippines more than one million such “dark“ huts will be lit.
How? And it is very simple. By means of plastic bottles. And at the same time and ecology … it is possible “to treat“. The thrown-out plastic bottles do not decay and pollute territories, adjacent to settlements, practically forever.
The idea voiced by the Brazilian engineer - the inventor Alfredo Mozer (Alfredo Moser), is simple to genius. The roof of the dwelling is bored through, and the transparent plastic bottle filled with water is inserted into an opening.
If on a bottle direct sunshine fall, lighting power approximately equals 50 - 60 - a watt electric bulb. A bit later this idea was described in the student`s scientific magazine of Massachusetts Institute of Technology. But into practice in large quantities the idea began to be put on Philippines.
Till July 1, 2011 “nearly 10 000 dwellings were captured by lighting“. The technology relieving of some annoying trifles which enthusiasts of such “general electrification“ faced in the beginning is during this time fulfilled and put on a stream. Cracks about bottles proceeded, water in bottles “blossomed“ (grew turbid and turned green), etc.
For half a year of “experiments“ picked up both technology of works, and materials of fastening of bottles to a roof, and special flyuorestsiruyushche - a bakterioubivayushchy additive to water for “the shining bottles“. Bottle “bulbs“ after addition in water of such additive began to shine slightly more brightly, and water, by calculations, should not “blossom“ within at least five years.
Today works on the Isang Litrong Liwanag project (“Light liter“) as the project of illumination of the Philippine hovels was called in the marketing purposes, are well under way. Initiators of the project managed even to receive the promise of public financing if they really realize the plans. So far works are performed by volunteers, and bottles are collected by the locals who are eager “to install electrical equipment“ to the dwellings.
Experiment received such public response that the authorities of several South American states became interested in it. And in Brazil which is considered the homeland of “a bottle bulb“ similar is now created Philippine fund. In the Brazilian favelas (the poorest areas) of “dark hovels“, similar Philippine, too millions.
The Asian and African countries, probably, too will resort soon to such extraordinary way of lighting of dwellings of the poorest segments of the population.
And finally note … In “Shkolezhizni. ru“ there was already interesting article “What to do with a plastic bottle? “, however such way of use of a plastic bottle is not described there. And the idea lies on a surface!