They're like invisible sticky spheres, rolling through a room full of dust.

The student recognised the potential of the invisible sphere and spent eight months fine tuning his project.

My vision pierces the murky invisible sphere that sur-rounds us all, and I penetrate into the realm of light.

Within it was a passenger who delivered a whispered laugh that came like a tone from some invisible sphere.

This is an invisible sphere of energy that resides in the Negative Zone but is accessible from many parts of Earth.

The flames licked higher, curling as if seeking to encircle an invisible sphere.

Though in many of its aspects this visible world seems formed in love, the invisible spheres were formed in fright.

"So ethnic," Zefla said to Travapeth, her hands out in front of her as though supporting two large invisible spheres.

He accidentally kicked an invisible small sphere, and heard it roll, a heavy slithering.

An invisible sphere enveloped them and he leaned over absolutely casually and kissed her.