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Forgotten invention: the Rolamite - Boing Boing
Our exclusive skullcap T-Shirt, by Sarina Frauenfelder, is $14.95 for men's sizes and $16.95 for women's sizes . Don't miss the artist's statement .Fisher and Paykel are an Australian and New Zealand company that make white goods and are available around the world.
Hobby alternative energy production education and resources. Fis
Ten Times the Turbine | Popular Science
WIND WIZARD Doug Selsam sits beneath a prototype 25-rotor turbine that can produce three kilowatts of power. The other end is held aloft by a balloon.
Build your own flat panel solar thermal collector - Instructable
The collector is made from corrugated plastic sheet, commonly used for making signs. It has multiple square channels running lengthwise from end to end. When I first saw this type of sheet I immediately thought, "Wow, this would make an excellent flat panel solar collector if only there was a way to pipe water through all those little channels."