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.
23 4 Brownian Motion Brownian motion of colloids and the diffusion of solvent molecules are both the manifestation of translational (and rotational) kinetic energy. In thermal equilibrium this kinetic energy is on average the same for colloids and molecules.