CAMBRIDGE, England â British scientist Stephen Hawking has decoded some of the most puzzling mysteries of the universe but he has left one mystery unsolved: How he has managed to survive so long with such a crippling disease.
Brownian movement. n. 1. (General Physics) random movement of microscopic particles suspended in a fluid, caused by bombardment of the particles by molecules of the fluid. First observed in 1827, it provided strong evidence in support of the kinetic theory of molecules.
Noun. 1. Brownian motion-the random motion of small particles suspended in a gas or liquid. Brownian movement, pedesis. motion, movement-a natural event that involves a change in the position or location of something.1  Facebook.rownian motion-the random motion of small particles suspended in a gas or liquid. Brownian movement, pedesis. motion, movement-a natural event that involves a change in the position or location of something. 1  Facebook.