Laser Motion Control of Levitating Graphite
With this experiment I want to prove that it is possible to convert light energy into kinetic energy without the need for solar panels and electric motors.
The objective is to move a piece of pyrolytic graphite in levitation using a beam of light.
It seems the tractor beam of the science fiction movie 🙂
Here is a list of materials used:
Laser Safety Glasses: http://bit.ly/2juC5dD
Mini Engraving Machine: http://bit.ly/2iBPmg6
Strong Block Cuboid Magnet Rare 5mm: http://bit.ly/2iwQGpp
Neodymium Magnets Cubes 3mm: https://www.supermagnete.com/W-03-N
Pyrolytyc Graphite : https://www.youtube.com/user/AVAMagneticlev/
The pyrolytic graphite is the material that has the most intense diamagnetic properties. Thanks to diamagnetism graphite can levitate on North-South chessboard grid of neodymium magnets. Graphite is an excellent conductor of heat, so if hit by a laser beam immediately warms changing the diamagnetic response at that point, this causes the movement.
The graphite production is the most difficult part of the experiment because must have a thickness less than 50 microns. The pyrolytic graphite, as seen in the video to easily divided into “sheets” but to achieve a thickness of 50 micron I had to consume it with fine sandpaper, with the constant risk of breaking or pierce it.
I tried several dishes of levitation, made with magnets of different sizes. I believe that the magnets with smaller work better for this experiment because minimize the resistance of the magnetic field between the files of the chessboard.
This amazing discovery was made by the Japanese researcher Jiro Abe