Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Uploaded on Feb 26, 2008
This small piece of art runs at more than 100rpm powered only by the heat of my palm! The minimum temperature difference between the upper and lower plate required to spin the engine is only ~1.5'C. It is even able to run on the cooling effect of evaporating water! High resolution pictures are available here: http://picasaweb.google.com/PalmRunner See another video of an old version capable to run on unconcentrated sunshine: http://video.google.de/videoplay?doci...