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No they don't. Any spinning wheel will create a force that tries to preserve its axis of rotation. If you have two counter-spinning wheels that share the same axis and try to tilt them, they will both try to preserve the same axis of rotation and thus exert a force in the same direction.


Have you done the experiment? "Syd12107" has claimed to in this thread: http://www.physicsforums.com/archive/index.php/t-173215.html

The result was that counter rotating gyroscopes had no net effect.

The only thing that matters is total angular momentum.

The resistance to being tilted is a _secondary_ effect. The push gets translated into motion at right angles to the push, and this motion gets translated into push at one more right-angle, exactly countering the original push. For two counter-rotating gyroscopes, this first-stage motion of one is exactly countered by the other, leading to no net effect. Really, truly.


That exactly matches my experience and calculations.




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