2

Levitron toy

Magnetic field of Levitron

The above picture is a basic concept of how a levitron toy works.

Could the top floating peace stay entrapped in the magnetic field without having to spin if the edges of the balloon keep the top piece from flipping over?

The balloon is neutrally buoyant with the small piece inside and secured not to flip over.

I do know the spinning causes gyroscopic stabilization and keeps it from flipping over to attracting poles. The opposing poles of the 2 magnets creates the lift. The shape of the base magnet keeps the levitation entrapped.

Youtube video In other words could I replace the spinning with a balloon?

I tried to find support to that theory using current models and I am blown out the water wrong because those model were electronically stabilized.

Why would a balloon make a difference?? In this model the difference is the helium balloon may make it weigh less and allow the top to be pushed higher by the base. Like a sail ship mast the buoyancy of the helium and the weight of the secured to balloon top would be kept up right entrapped.

Will not know until I try it. Unless it has been tried some where else this way?

enter image description here

How does a Levitron work?

Where on Earth is the magnetic field intensity stronger?

Could a satellite levitate above the magenetic fields of Earth?

Could a city be built out of Balloons?

enter image description here

user7083
  • 570
  • 3
  • 19

1 Answers1

3

Could the top floating peace be place inside a helium balloon buoyantly neutral and stay entrapped in the magnetic field without having to spin?

No. The system relies on the gyroscopic stabilization from the spin of the upper magnet.

The Wikipedia page for Earnshaw's theorem explains:

Earnshaw's theorem has no exceptions for non-moving permanent ferromagnets. However, Earnshaw's theorem does not necessarily apply to moving ferromagnets,[3] certain electromagnetic systems, pseudo-levitation and diamagnetic materials. These can thus seem to be exceptions, though in fact they exploit the constraints of the theorem.

Spinning ferromagnets (such as the Levitron) can—while spinning—magnetically levitate using only permanent ferromagnets.[3] Note that since this is spinning, this is not a non-moving ferromagnet.

Switching the polarity of an electromagnet or system of electromagnets can levitate a system by continuous expenditure of energy. Maglev trains are one application

Any product advertised as a levitron that does not appear to require spinning of the levitated item must be powered by an external power source which can supply energy to a polarity-switching electromagnet.

It is impossible for a Levitron with no external power source to maintain levitation without spinning.

Jonathan R Swift
  • 7,811
  • 1
  • 16
  • 30