Matchbook-Sized Motor Sets 1 Million RPM Record

Researchers from ETH Zurich's Department of Power Electronics have developed a matchbook-sized motor that can spin faster than any other machine in the world—over 1,000,000 rpm. In order to keep it from falling apart at such high speeds, the researchers employed a titanium shell, ultra-thin copper wire for the windings … » 11/14/08 6:30pm 11/14/08 6:30pm