A water bottle can become a source of power for you and light up your room. Yes, you got it right. Focusing on the concept of diffraction of light, students at the Massachusetts Institute of Technology have already made it a reality and this system is being used to light up various homes and poor settlements in Philippines. These light bulbs have been created by using one liter plastic bottles, few teaspoons of bleach and some water.
To fit this light source, first a hole is made into the roof of the house. Then, this recycled system is installed by fixing the bottle through the sealed hole in the metallic roof of those poor dwellings. This can be done within an hour and is usable for a period of around five years. When sunlight falls onto the water in the bottle, it gets diffracted and lets the whole house glow. The role of bleach is to keep the water clear and microbe-free.
In Philippines, the solar bottle bulbs’ installation work is being swiftly done by an organization named Isang Litrong Liwanag (A Liter of Light). The organization has already installed over 10,000 bulbs. Check out video of the process in action where a social entrepreneur, Illac Diaz, comments and explains to a Filipino publication about the life-changing Solar Bottle Bulb project.
Solar bottle bulbs are not only illuminating light-deprived houses but are also providing residents an alternative option that is quite cheaper than any other electricity source. This project is an addition to the design of alternative technologies, especially for the developing world. That is how even a simple technology can change lives and generates powerful ideas for the common man!
Via FastCompany
