MIT Physics lecture demonstration:
DYNAMICS - Conservation of Angular Momentum
The demonstrator sits on a rotating stool and holds a spinning bicycle wheel equipped with handles on each end of its axle. The wheel is held in a vertical plane passing through the axis of the stool. If the spinning wheel is turned into a horizontal plane, the stool will rotate in the opposite sense to the spin of the wheel.
We can balance the bicycle when it's still. It just takes greater skill. Look up how to track stand and you'll learn many techniques, both for freewheel/freehub and fixed gear bicycles. Track standing is the technique of balancing the bike when it is still.
When the bike is moving, the spinning wheels act like gyroscopes to make it super easy to balance. When the bike is still, you have to use other methods which require a higher level of skill.
antiaverage1 2 years ago
why we cant balance the bicycle when its still?
Hfaik 2 years ago