Science and Engineering Festival Player > Bill Nye discusses space with ENGINEERING.com
the Gadget Guide
The video clips below were filmed with a special high-speed camera .
Perpetual Futility A short history of the search for perpetual motion. by Donald E. Simanek Popular histories too often present perpetual motion machines as "freaks and curiosities" of engineering without telling us just how they were understood at the time.
3D Printing Demo 1 - ZCorp Zprint 650