She felt suspended in a hollow sphere; nothing seemed quite within reach.

The animal half, if isolated, will only develop into a simple hollow sphere.

Did that power support the hollow spheres and make them function?

Rather than being a hollow sphere of blown glass, it seemed to be solid.

For example, a hollow sphere does not produce any net gravity inside.

Here you live upon the inside of a hollow sphere.

He raised his hands, cupped them into a hollow sphere.

It contains what looks like a hollow sphere of glass.

The shield turned out to be a hollow sphere with a 1-meter-thick wall.

The activity within the hollow sphere seemed like warfare in miniature.