Magnetic wheel by steel shielding

[vineet_kiran]

In any case the energy to rotate the wheel comes from your hand. Magnetic fields can not be shielded. Your 'shield' only distorts the magnetic field, and when you move it you have to work against the magnetic field which requires energy. The only way to really shield a magnetic field would require a non-magnetic shielding material, but nobody has found such material yet.

Please keep in mind that simply rotating a wheel without any load requires very little energy so you might not have the feeling to do mechanical work with your hand.

May be you are right.   I observed one more method of switching 'off' the magnetic field by repulsion.  I have posted the video in youtube.  Please have a look.

https://youtu.be/EH4ZMnxlqfw

As you can see from the video,  when one side of a thin disc magnet's magnetic field is compressed,  the other side of magnet looses its strength and a steel plate held by attraction falls down.   This method can be used to create 'On' and Off' of magnetic flux with respect to a coil or another magnet. You have to use thin magnet.

The magnet stack which is used for compression, can be moved easily if repulsion is uniform throughout its way of movement,  for example on the surface of a ring magnet, a repulsive disc magnet can be moved easily throughout the surface.  Hence if a repulsive stack of magnets is moved over a thin ring magnet and a coil is kept on the other side of ring magnet,  will not the coil generate energy without experiencing any slowing down (lenz) force?   Any thoughts on this?

[Floor]

Difficult to measure the work input to work output.. My opinion is that
this type of device ( first video) is workable.
               floor

[vineet_kiran]

Just have a look at this video :

https://www.youtube.com/watch?v=LrTm2pVqx58

The coins while passing through lengthy magnets having uniform magnetic field do not slow down because no eddie currents are induced whereas while passing through small magnets joined together, they slow down because eddie currents are induced by N-S-N-S arrangement of magnets which result in rate of change of flux.

[F6FLT]

Nice experiment. I agree with you about the explanation, vineet_kiran.

[blueplanet]

A decade ago, there was another guy from energetic forum who did a similar thing so called "r*** pipe dream" but his work has turned out to be a real pipe dream!  The problem lies in the magnetic shielding. This so-called shielding is not possible without a magnetic material. For this reason, it takes a lot of effort to shield and unshield  the magnetic field.

May be you are right.   I observed one more method of switching 'off' the magnetic field by repulsion.  I have posted the video in youtube.  Please have a look.

https://youtu.be/EH4ZMnxlqfw

As you can see from the video,  when one side of a thin disc magnet's magnetic field is compressed,  the other side of magnet looses its strength and a steel plate held by attraction falls down.   This method can be used to create 'On' and Off' of magnetic flux with respect to a coil or another magnet. You have to use thin magnet.

The magnet stack which is used for compression, can be moved easily if repulsion is uniform throughout its way of movement,  for example on the surface of a ring magnet, a repulsive disc magnet can be moved easily throughout the surface.  Hence if a repulsive stack of magnets is moved over a thin ring magnet and a coil is kept on the other side of ring magnet,  will not the coil generate energy without experiencing any slowing down (lenz) force?   Any thoughts on this?