this is hypnotic to watch…

HOW he makes it float is amazing.   This is one of those YouTube videos that science fans appreciate.  It is simple and shows off the properties of physics that sometimes we forget about everyday.  Here is a brief description from the experimenter as well on what is happening in the video:

Optical illusion? No! No cords! No threads! It isn’t a perpetuum mobile! It works with a magnetic field few minutes. The spin of the gyroscope change the negatively and positively charged sides. The same principle is the wheel angular momentum experiment. Similar experiments works with globes and spheres.

It is based on something called lenz’s law and here is an excerpt on it from wikipedia

Lenz’s law /ˈlɛnts/ is a common way of understanding how electromagnetic circuits obey Newton’s third law and the conservation of energy.^[1] Lenz’s law is named after Heinrich Lenz, and it says:

If an induced current flows, its direction is always such that it will oppose the change which produced it.

Lenz’s law is shown with the negative sign in Faraday’s law of induction:

which indicates that the induced voltage (ℰ) and the change in magnetic flux (∂Φ) have opposite signs.^[2] Lenz’s Law is a qualitative law that refers to the direction of induced current in relation to the effect which produces it without quantitatively relating their magnitudes.

Even some of the newer hoverboard companies like Hendo technologies have prototypes that work on Lenz’s law.  Their hoverboards are magnet based and use a copper base underneath to “hover” with that type of force.  See if you are ambitious and want to try this at home yourself.  It shouldn’t be hard it would just take a few items as seen in the video.

Most of the commenters btw are saying there must be magnets under the table.  I would concur as well for this to work although it is cool none the less!