Super simple way to see proof Pseudo Solid principle works using ring magnets

[norman6538]

Three tests on the new setup.
1. 1/4 tilt with no magnets or weights and it slides downhill.

2. 1/2 tilt with a hard drive neo and it does not slide downhill.

3. 1/2 as in 2 but 3.5 lb brick on top and it slides downhill.

So clearly with these ballbearing wheels if friction was a factor
then 3 would not slide downhill.
I got the wheels from Lowes which are designed to put into drawer
slides. Each one has numerous balls inside the white plastic wheel.
I used kerosene to lubricate them and the all turned and spun
freely.


Photo attached, sorry for the poor lighting and color.

Let the smears begin.

Norman

[Cairun]

Norman, Webby,


Although the bearing rollers and truck wheels seems free of friction, they do have some friction in them especially the rubbery truck wheels when they deform under load.
Norman, your 3rd experiment proofs the concept.  The brick(it can probably be a much lighter object) provides enough downward force to overcome the static friction and allows the cart to move.  The magnet does not provide much downward force given it's small size, but it creates a strong pull onto the steel surface which creates friction on the rollers.  You should move the cart(with only the magnet) with your hand and see if it opposes your hand. 

Alex,
Best regards

[Floor]

@GammaRayBurst

                Here are 2 PDF files and my congratulations !

                                    Thanks for all the hard work

                        Cheers
                                 floor

[Floor]

@webby

Same piece of steel, same incline, the truck did not move with the magnet but did move almost as easily with the 415g on top as without.

The Truck would move with the magnet but it was like it was in mud, adding more weight to the truck did not help.

                                    Yes, "the truck did not move" "The truck would move"  If you try  the aluminum foil roll and neo magnet experiment
(I posted earlier in this topic), you would see a magnet moving like it's stuck in mud,and yet aluminum is not magnetic.

                                   cheers
                                        floor

[Floor]

@webby

      A strong magnet will come to a complete stop, some times even go back wards,  then reverse direction and speed up, drag along the side of the tube, slowing down and then speeding up again.

The eddy currents producing the magnetic force, from within the aluminum, are caused by the magnet's strength, distance from the aluminum and the speed of the magnets travel.

I do see your point though.  Counter force is only being produced in the test track, if and when the magnet is moving. If the motion stops because of the eddy current magnetic force, then the magnet should start moving again, because the eddy currents died off.

The stoppage is caused by friction, assisted by the motion damping from the eddy current magnetic force, opposing the build up of momentum.

Only the momentum of the magnet is opposed due to the eddy currents. A brick can build momentum, a brick with the magnet in place
will build momentum only until the eddy currents and increased friction from their pull equalize the force present in the moving brick.

If you had a  long ramp and a brick of the the right weight, you could see the brick get moving along really fast, and then stop briefly, like someone put on the brakes.  Then it would star moving again.

                   Cheers