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.
The difference between true motility and Brownian movement are that true motility is when the movement of cells is caused by an intentional force or appendage. The movement of cells is more purposeful and in a specific direction. On the other hand, Brownian motion is when cells are bombarded by water molecules, which caused them to appear as to be vibrating. The Brownian movement is random and not in any specific direction.