# Re: [Vo]:Successful Mechanical OU

```On 5/06/2018 12:30 AM, John Berry wrote:
John, there might be the odd exception.```
```
I can give you an example that seems to break the CoM and CoE, it isn't
practical.  Now there might be an explanation, MAYBE it produces a photos that
explains the propulsive effects...  But I doubt it.

Now, the easiest way to explain (though there is a way this can work without
switching and just use DC electromagnets or even permanent magnets to affect
Inertial mass positively or negatively)  this is if you have an electromagnet
establish a field, a large field

And then you have a second electromagnet turn on suddenly, and it is attracted
or repelled.

Then, before the magnetic field from the second electromagnet can affect the
first electromagnet, you turn off the first electromagnet.
Standard physics says that the momentary field from the second electromagnet
will propagate outwards from it at light speed so that it passes completely
through the first electromagnet and affects it to just the extent that it would
have affected it if the field propagation was instantaneous.  So after a very
short time, CoM is restored.  I am confident that if you were to include the
momentum of the field in the calculation, then CoM would be continuously
satisfied over all space.  (That is after all how physicists would work out the
momentum of the field - by *assuming* that the total must always be conserved!)

So now you have gained thrust from one electromagnet, but the other has
experienced no forces.

As I say, a version without switching can be envisioned where one magnet, or
both are suddenly accelerated in the same direction so that one moves deeper
into the field of the other, and the other moves out of the field, so one finds
the attraction or repulsion between then increased, the other finds it
decreased as neither sees the "new" or current position for the other magnet.

By doing this you can create without and doubt thrust, break the CoM and
therefore the CoE...

And the only way it could fail is if you prove that magnetic fields,
near-fields transfer forces and information INSTANTLY which Einstein would
consider a blow.

This is not wrong, Unless as I said that a bit fat photon carries all that
momentum in the opposite direction.

I personally cannot see where there would be a cost of energy though for the
photon to be coming from.
There is something usually called "radiation damping" which is the mechanical
effect on moving charge that is the *reaction force* of suddenly accelerating
or decelerating the charge.  After this sudden acceleration, its effect then
radiates outward at light speed and can finally cause acceleration of remote
charges - which finally balance the CoM equations for solid matter (which were
unbalanced while the radiation was in transit).
```