Aryabhata appears to have believed that the earth rotates about its axis.

Three planets, drifting together in an empty void beyond time and space itself, had been "rotated about their axis."

Instead, the Earth was rotating about its own axis.

Six of the planets also rotate about their axis in this same direction.

As the earth daily rotates about its axis, the northern latitudes pass into shadow (night) for the least amount of time.

A center facet rotates about its axis but otherwise stays in the same position.

Notice that after composing the independent rotations, they do not rotate about their axis anymore.

Can you tell me why one of these cylinders is stable when it's rotating about its main axis, and the other one isn't?

In theory, the model should rotate about its vertical axis until the control is released and then stop.

Mars rotates about its axis in almost the same time that Earth does.