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.
Settlement movement. The settlement movement was a reformist social movement, beginning in the 1880s and peaking around the 1920s in England and the US, with a goal of getting the rich and poor in society to live more closely together in an interdependent community.