The sphere rotated, revealing a hollow lower half occupied by eight men.

The sphere could also rotate on more than one axis, which would give you access to and from several points within the hull.

When they were all in position, the two spheres rotated, bringing the two hatches into line.

The inner sphere rotates through one hundred and eighty degrees.

It was as though a tiny sphere were rotating clockwise and counterclockwise at the same time.

Each sphere was rotating on an axis attached to the cage.

To one side of the brick wall, a sphere slowly rotates in sync with the lunar phases.

Similarly, a uniform sphere rotated about its center will appear exactly as it did before the rotation.

The living-space sphere rotated itself as soon as we started that.

For an instant, as he saw the viewers blank out, Burl thought of what might happen if the sphere didn't rotate all the way.