Since there have been no objections I will continue.
But as you can see in the video, the body does not counter rotate. This means that there is a counter force acting on the body which stops it counter rotating. There is a slight oscillation in the body but, if we refer to the slinky experiment, we can use statics to explain this process.
Since there have been no objections I will continue. We are at the point where the rotor arm has just enough momentum left to move across the body magnet. The magnetic potential energy in the body magnet and the rotor magnet is released and the rotor magnet is accelerated down the tube, which you can hear on the video. The motor is now free to accelerate and again, using classical physics, we know what should happen. As the rotor arms accelerate a force should be applied to the body causing the body to counter rotate. But as you can see in the video, the body does not counter rotate. This means that there is a counter force acting on the body which stops it counter rotating. There is a slight oscillation in the body but, if we refer to the slinky experiment, we can use statics to explain this process. I will pause for the moment. If I receive no further objections to the above then I will continue to the next set of interactions.
And the thrust bearing?
So it's not the string?
Look, I know how you feel, I've been there. It is difficult to think that such a simple device can achieve what you see on the video.
Now you will have to take my word for it, it is NOT the string. I have checked, double checked, and triple checked it.
On a positive note, since the diagram was of a device suspended by a piece of string, I no longer have to supply it.
As stated earlier, the body cannot move since it is effectively pushing against itself.
Always remember that a thrust bearing will apply an equal amount of friction in either direction.
So, as the magnets are forced together, load is applied to the motor. If we look at armature reaction, we will see that, due to the load, the main field flux lines will distort and shift the Magnetic Neutral Axis in the opposite direction to rotation. As stated earlier, the body cannot move since it is effectively pushing against itself. It is easier to visualize the movement of the M.N.A so that when the tube magnet accelerates down the tube, load will rapidly drop which will cause the main field flux lines to shorten and the M.N.A will now move in the direction of rotation. This will drag the body in the direction of rotation.We now have the required situation where the body is attempting to move in the direction of rotation. At the same time the rotor arms apply the counter force as they accelerate. So there you have it. A very simple device. Everything that has been explained is known and can be easily accessed. All the information can be easily found on the internet or in any electrical engineering textbook.I am amazed at the mention of dean drive. You make reference to a device that famously did not work because it was suspended from a string (i.e. no contact with the ground) and yet almost in the same breath you are arguing that the only reason the device works, as in the video, is because it is suspended from a string?Always remember that a thrust bearing will apply an equal amount of friction in either direction. May I suggest that you now do some easy searching so that you may understand more clearly what I have stated. The various websites etc. will explain it in far more detail than me.
Because of the need to push past the repelling magnetic field of the body magnet, the power supply settings are such that if I were to remove the body magnet, the motor would accelerate very quickly and hence so would the body. The body would become snagged in the power input wires so at the moment it really isn't a viable option.
Because of the need to push past the repelling magnetic field of the body magnet, the power supply settings are such that if I were to remove the body magnet, the motor would accelerate very quickly and hence so would the body. The body would become snagged in the power input wires so at the moment it really isn't a viable option. Thank you for the feedback though, and if you or anyone else has any more suggestions, please feel free to air them. We do, however, have a set of interactions that we can now look at, and don't forget we are starting with a deceleration (it is very easy to look at this back to front). If we say the magnets are M: the Field Flux is FF the Body is B and the Rotor Speed is NWe now have.. -N + (M+-M) + (FF+-FF) + (B+-B) + N = 0 Or in a simple visual sense - a five ball Newton's cradle. The brackets are the three center balls. So, the -N ball decelerates, the three middle balls remain static, and to conserve (transfer) momentum, the N ball must accelerate. I know this is a very simplistic explanation but it does conform with everything we know.