M Drive reactionless drive invented by me

[M Drive Inventor]

"Now it appears that you are arguing that the friction IS sufficient to couple momentum between the substrate and the DUT"

The wheels of the machine need to move backwards and forwards for propulsion to occur. They are not completely frictionless, as that's impossible. I was simply pointing out that the little friction that's left in the wheels could possibly pull the plate with it when they start to move, even if reactionless propulsion occurs. Though, the same is true when they move in the opposite direction, so it wont favor the wagon moving in any direction.

Hopefully though, the friction left in the wheels is not large enough and no reaction occurs when they move across the surface.

Edit: Plane glass bought ($30). One of the gyros is broken right now though, so no experiment for a while.

[e2matrix]

How convenient that you cannot provide any real data about this claim of yours. My herd of invisible pink unicorns is laughing about it still. (We just got back from showing them to a university professor, who is really impressed, but we can't talk about it due to our NDAs.)

I don't believe this claim, and I know people with _lots_ of money who have been trying to do this very thing for many years (Joe Firmage and Motion Sciences to mention just one very-well-funded group working on "streptation" and gyro antigravity) and they haven't been able to do it. So without any supporting evidence for the claim, I've got to say that either you are mistaken or you have been the victim of a hoax yourself.

I'm just saying what seemed a fascinating subject related here and wish I had more info on it myself.   I'm not making this up but will admit it's possible it's not what I was shown.   However in my best judgement this person is intelligent and honest and I checked him out a bit finding he has a successful business of the type where ethics and a honesty are paramount.   Of course there's always one bad apple in any barrel but just saying I found no reason to doubt his work.  I'll make an attempt to get in touch with him again although it's been several years.   

[tim123]

The wheels of the machine need to move backwards and forwards for propulsion to occur. They are not completely frictionless, as that's impossible.

Could you do away with the skateboard entirely:
- mount your mechanism on an upper plate of glass
- lower plate and ball bearings as TK suggested...

Does that solve the problem?

[lumen]

How many cycles of movement or distance moved would be required to show it working?
Your probably not going to have much time on a glass plate before all the balls fly out from any tilting action.
It might help to lower the center of gravity as much as possible to gain better support on the glass.

[M Drive Inventor]

Does that solve the problem?

We're not even sure it is a problem at this point.

How many cycles of movement or distance moved would be required to show it working?

As many as it takes for either the glass plate or the machine to move, which could be as little as one cycle.