The big idea that's "light on technology"

A far cry from the usual tech-advancements, but utterly brilliant! Sometimes, it's the simple things that solve the biggest problems - enjoy!

http://www.youtube.com/watch?v=o-Fpsw_yYPg

That's pretty cool. Simple, but it works. The end result is interesting looking too, oddly similar to a light bulb.

Faith in homo sapiens restored.
Thanks.

I saw that last year. It's awesome.

I think it's a great idea! And a sad commentary or a number of things, including the ubiquitousness of the discarded 1 liter beverage bottle.

By following the links I found another video where they were making banks of collectors from these bottles, enough to heat the hot water for a good sized building.

Quote:

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Originally Posted by djr33

That's pretty cool. Simple, but it works. The end result is interesting looking too, oddly similar to a light bulb.

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Ya it looks awesome.. It is so easy.. Sometimes petty things matters most