It is the one point that does not move during rotation.
They move in a swirly way
Moving a shape, without rotating or flipping it. "Sliding". The shape still looks exactly the same, just in a different place.
True.
Even in a rotating restaurant, the kitchen would be located in the non-rotating center. If you had a kitchen on a rotating platform, the centrigugal forces would cause a certain amount of spillage and generally would make it harder to control the ingredients.
In reality, the shape of rainbow is a circle. The center of the circle is an imaginary line between the center of the sun and the head of the viewer.
Shaft center to center
It is the center shaft of a rotating wheel or gear.
They move in a swirly way
what does it mean by rotating amplifier and how it works?
Acceleration of rotating objects
A tornado
There is energy in a rotating mass. Work equal to that energy has to be done on it to get it rotating. But it will keep on rotating without any additional work or energy, unless it is slowed down by friction, or other forces.
Translation
A shaft is usually longish bit of rotating machinery, made to transfer rotating power. Eccentric means off-center. Either the shaft isn't round, or it's not mounted at the center of wherever it it.
Moving a shape, without rotating or flipping it. "Sliding". The shape still looks exactly the same, just in a different place.
To move a shape without rotating or flipping it. The shape still looks exactly the same, just in a different place.
Depends on the time of day - we are rotating after all, and revolving.