See the entire definition of Backbone. Biopsy: The removal of a sample of tissue for examination under a microscope to check for ... Blood clots: Blood that has been converted from a liquid to a solid state. Also called a t... Bone scan: A nuclear medicine technique for creating images of bones on a computer screen ...
Schmidt's study also stopped following the toddlers at age 3; she acknowledges that some cognitive changes may not occur until children are a few years older. TV exposure in babies younger than 2 doesn't do any good, Schmidt and Christakis agree.
The first person to appear on television was a young office boy in the building where Baird worked. The lad was paid about 60 cents for his appearance! The first broadcasting of TV pictures didnât begin until 1935, in Germany, with American TV broadcasting following six years later, in 1941. By 1949, there were a million TV sets in this country, and by 1959, there were 50 million. During the 1960s, color television became popular.