Nanotech Pinball and Miniature Engines
glenmark writes "Researchers at the Solid State Electronics Laboratory at Chalmers University of Technology in Sweden have developed the world's smallest pinball game. The video is fascinating. The flippers are electrostatically-actuated monocrystalline silicon cantilevers. I hope Pat Lawlor and Steve Ritchie see this. I have a feeling they would get a kick out of it." And in another nanotech story, psmears writes "Three hundred times more powerful than ordinary batteries, but much lighter and smaller? Researchers at the University of Birmingham have developed a micro-engine that will allow people to charge mobile phones using lighter fluid. Further information at Research-TV including photos and a film."
Berkeley has been working on mini and micro rotary engines for a little while now. Rotaries are really better for this application as they have less moving parts. Their mini rotary engine is about the size of a penny while their micro rotary engine has a rotor of size 1mm! Rotaries have no valves which makes them much easier to produce at this size.
"Nature doesn't care how smart you are. You can still be wrong." - Richard Feynman