Solar Bottle Lights

Bravo!  Necessity is the mother of invention.

I found this on the same Youtube page.

  Earthship people see this. They have been putting hundreds, sometimes thousands of bottles, in the walls of their towers, and houses for years, but not in a way as to produce this much light...The solar water heater is nothing new, I have even done this with hundreds of feet of old hose while living in the desert, lay it out across the flat,,up a small grade in the morning, and by noon I could run it into a hot, and i mean hot, bath. Of course, I would wait until evening to use it......The Earthship people have also built septic systems from plastic bottles,,some in Indonesia after the tsunami there....