Archive for January, 2010

river simple’s open source hydrogen car

I was just reading about river simple’s hydrogen car - a really excellent concept. Not only is it a breakthrough in technology (50% efficient at recovering energy lost through braking), it’s a breakthrough in car ownership.

Their motto is ’sustainable mobility’, and this is achieved by leasing the cars rather than selling them. This puts the focus on long life and low running costs, both positive things when it comes to sustainability.

Finally, the whole car is an open source/open hardware project! So people are free to build and modify their own versions - much like our own projects here at openrenewables.org.uk

DIY solar rainbow maker

Check out the latest update to the wiki: a DIY solar rainbow maker! For £10 you can get everything you need to build a cool solar powered rainbow maker. It works by collecting energy from the sun and using it to turn around a lead glass crystal. When you the sun shines you get cool rainbows moving round the room!

rainbow