[An American!]

Check these out of people who have gotten ito to work on air compressor (easiest way to test a prototype steam engine)
http://www.youtube.com/watch?v=HdkdaxkSXDI
http://www.youtube.com/watch?v=EOqWzefvlfg
http://www.dutchforce.com/~eforum/index.php?s=5cbf631e38d29919a389f2ad29d74dd7&showtopic=37264
and finally
http://www.youtube.com/watch?v=dI-Zl7nEzA8
Fresnel lens is cool...or rather hot. Scanvenge one from a discarded old big screen TV and get one hot point of light :)

[Smokin' Joe]

Thanks! I hadn’t given much thought to fresnel lenses—we don’t get much daylight in winter, when we’d need it most, but in summer it could be a real fuel saver. In winter, if things were done right, most of the ‘waste heat’ could be used for heat, and in winter here that’d be a real plus.

[Titan Magroyne]

bmfl