Froth flotation is an important concentration process. This process can be used to separate any two different particles and operated by the surface chemistry of the particles. In flotation, bubbles are introduced into a pulp and the bubbles rise through the pulp.
Doodles Weaver. Winstead Sheffield Glenndenning Dixon Doodles Weaver (May 11, 1911 â January 17, 1983) was an American character actor, comedian, and musician. Born into a wealthy West Coast family, Weaver began his career in radio. In the late 1930s, he performed on Rudy VallÃ©e's radio programs and Kraft Music Hall.
Edwin Powell Hubble was born on 20 November 1889 in Marshfield, Missouri, U.S.A., although the family moved to Wheaton, Illinois soon after his birth. At school he earned good grades in most subjects, although he was more noted for his athletic prowess than his intellectual abilities (in 1906, he won seven first places and a third place in a single high school track meet, and set a state record for high jump).