How To Turn a 2-liter Bottle Of Water Into a 50-Watt Lightbulb
It's not often that I'm taken aback by the simplicity and power of an invention, but this one does it for me. It's cheap, anyone can make one and it literally changes lives. Welcome to the water-bottle lightbulb.
The inventor's name is Alfredo Moser, and his idea is spreading like wildfire through his neighborhood in Brazil. Like all really great ideas, it was born out of necessity. During a 2002 energy blackout in Brazil, Alfredo's workshop was plunged into darkness. And so, using a simple 2-liter bottle of water, two capfulls of bleach and an old 35 mm film canister, he created this lightbulb.
By cutting holes in his workshop roof, the new water-bottle lightbulbs could shine the sun's rays directly into his dark workplace, bathing it in light that enabled him to work again. And friends and neighbors have been using his invention to light their homes without having to pay for electricity. Obviously, this isn't a solution for your average home in America, but it could easily work in your garden shed or another type of workshop. And I'm sure there are a few enivronmentalists looking at this very closely right now, including the creator of Earthships.
A few naysayers out there have already started picking apart the invention, with the main (and obvious) drawback being that it doesn't work without sun. Well, that's true. But this is designed to light up dark rooms during the daytime without spending one cent on electricity. And in the places where this invention is most useful, money is not exactly in abundance. It's a great idea and I, for one, salute Alfredo for a marvelous invention. Much like Trevor Bayliss's wind-up radio, I can see this having a huge impact, especiallly in third world countries.