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.
Definition. A theory or model that is used to explain random motion. Traditionally, Brownian motion was developed to explain the random movement seen in suspended particles, but is commonly applied today to the stock market.raditionally, Brownian motion was developed to explain the random movement seen in suspended particles, but is commonly applied today to the stock market.