Magnetically levitating graphite moves by laser

Fastest trains of today use magnetic levitation but so far no one has developed a practical maglev-based actuator that converts some external source of energy into motion.

For the first time, researchers from Aoyama Gakuin University have used a laser to control the motion of a magnetically levitating graphite disk. By floating graphite over a bed of circular magnets, taking advantage of its tendency to generate an opposing magnetic field, researchers can move the graphite in a controlled direction just by blasting its edge with a laser since it changes the disk’s temperature. Laser light or sunlight can also cause the levitating disk to rotate at over 200 rpm, which could lead to a new type of light energy conversion system.


The research team believes it could be scaled up and used as a light-driven human transportation system or even energy converting turbines that are steered solely by light, with no contact or outside guides.






Leave a Reply

Please log in using one of these methods to post your comment: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s