As we observe their random motion, we can use this knowledge to work out the strength of the forces between them.

They are moving past many atoms very frequently, even when there is no net current but only random thermal motion.

I waded through the random motion of bodies and started doing my job.

It was just random physical motion designed to stop her crying.

Eventually, as a result of this random motion, all the particles are distributed throughout the fluid.

It was evident that his random motions weren't being successful.

Manifestly, the random motion of the stars within the galaxy could not account for it.

I jerked my head at the swirl of bodies in random motion behind me.

At room temperature, the average speed of these random motions is 10 metres per second.

The individual molecules of the gas, however, are in constant random motion.