They only travel through solid material, and so are stopped at the liquid layer in the Earth's core.

He speculated that the crust may sit on top of a liquid layer.

In the middle is the comparatively clear liquid layer called effluent or gray water.

The core may be composed of solid and liquid layers.

The outer core of the Earth is a liquid layer about 2,266 kilometers thick.

Scientists continue to debate whether friction or the liquid layer plays the more important role.

There are several techniques to prove the existence of a liquid layer on a well ordered surface.

Nuclear magnetic resonance provided evidence for a liquid layer on the surface of ice.

The liquid layer is periodically drained and used for fertilizer.

Indeed, they were originally thought to be some form of amorphous or even liquid layer between the grain.