This years winning invention on Oz ABC TV program "The New Inventors" was a compressed air recycling system which can improve an ordinary air compressor's efficiency by 50% by routing the exhaust air from air tools back to the air intake of the compressor. The inventor has taken out world wide patents and has interest from the U.S. and the U.K so it maybe soon coming to a store near you. The story and video are at. http://www.abc.net.au/newinventors/txt/s1794042.htm Lee MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.