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World Changing
World Changing provides a blog where “Models, Tools, and Ideas for Building a Bright Green Future ” are discussed as well as a whole lot more.
So, if you’d like to :
- Know how urine can help make cheap batteries for medical sensors and testing kits or in an emergency battery
- Find out how architects are making more of roofs
Drop by them and read some more.
1 Years ago my father bought a Stirling engine. I was so impressed by it’s simplicity I made one in what was them called in school “metalwork”. It’s basically a chamber which is heated, causes expansion and contraction and moves a piston. It’s a brilliant idea and, coupled with a “green” energy source would help everyone out and cause a lot less issues on the Earth.
