Each one is free to rotate without any obstruction from the other five pieces.

It was large enough for her to rotate and translate without any part of her suit coming into contact with the machinery.

It holds one ring rigidly and lets the other rotate freely, without a stop.

In this way, the remaining discs are able to rotate and change their position without further disturbing the last disc.

It would be elastic in members being able to rotate in and out without a name change or breaking a groove.

Its head seemed to be mounted on ball-bearings, for it rotated without limit to aim one face at her, then another, and then the third.

This whatchmacallit in space was floating, rotating, around the sun like an immense wheel without spokes.

But it rotated uncertainly, like a compass without its magnetism.

The object can also appear to rotate 180 degrees without the need for specialised glasses.

The levitated object is then free to rotate around its center of gravity without interference.