We have light bulbs made from glowing metal filaments, fluorescent gas, and LED diodes. And now we have one made of water. There is also a virtually unlimited supply since the "bulb" is composed of nothing more than one-liter plastic bottle, water, and bleach. The simple technology can be installed in less than an hour, lasts for five years, and is equivalent to a 60 watt bulb.
It works simply: The water defracts the light, letting it spread throughout the house instead of focusing on one point. The bleach keeps the water clear and microbe-free.
To read the full, original article click on this link: The World's Cheapest Lightbulb Is Made Of Just A Plastic Bottle | Fast Company
Author:Michael J. Coren
