Just had a look at an article in the new scientist magazine, and saw that scientists have developed a tiny rotary engine, 2cm across, that develops 10watts of power. Apparently the idea is that they hope to develop it to make 60 watts of power to power laptops!!! Mini turbo chargers perhaps!? :p

clickety click (http://www.me.berkeley.edu/mrcl/mini.html)
Si
gona get a triple rotor laptop so i can play nfsu a bit faster
How cute an engine
thats ace i want 1
I am sure that miniature rotary engines were available for model aircraft in the 1970\'s.