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.
Quick Answer. According to the Grolier Encyclopedia, the electronic television was successfully displayed for the first time on Sept. 7, 1927 in San Francisco. This predecessor of the modern television was invented by Philo Taylor Farnsworth, a 21-year-old Utah native.