SIMbot uses a spherical induction motor and magnetic currents to get around
 

http://cdn.slashgear.com/wp-content/...-1-520x383.jpgProfessor Ralph Hollis invented a robot with a special motor that has a very simple drive system about a decade ago called the ballbot. Fast-forward ten years and Hollis’ invention called the spherical induction motor (SIM) has been improved in a new robot called the SIMbot that has eliminated the mechanical drive system used on previous ballbots. This elimination means … Continue readinghttp://feeds.feedburner.com/~r/slashgear/~4/5rM2ryEEWPI

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