"Mxsmanic" wrote in message
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No. If the bicycle cannot turn, it will fall over. It cannot turn on
rollers. It can turn on flat pavement.

You see, the bicycle stays up because it turns. As long as it has
momentum or power and traction, it will continue to turn or roll
straight. It can only stop when it has no propulsive power or
momentum.

This is more obvious in motorcycles than bicycles, but it applies to
both.

Similar principles apply to aircraft, which is why you generally
cannot simply push the yoke forward to descend or pull it back to
climb.


I'm curious, do you have brown eyes?