Watch Mr. Wizard first aired on NBC on March 3, 1951 with Don Herbert as Mister Wizard. In the weekly 30 minute show Don Herbert played a science hobbyist, and every Saturday morning a neighbor boy (Jimmy) or girl would come to visit. Mister Wizard always had some kind of laboratory experiment going that taught something about science. The experiments, many of which seemed impossible at first glance, were usually simple enough to be re-created by viewers. One example was Mr. Wizard's use of a small axle and two wheels from a toy car or truck to illustrate the refraction of light when crossing the boundary between two transparent media having different refractive indices. He placed the axle, oriented horizontally, at the top of a sloping board having surfaces with two different coefficients of friction, meeting at an angled straight line. As the axle rolled down the incline, one wheel encountered the surface with the different coefficient of friction first. That wheel then started rolling at a different speed, which caused the axle to rotate away from horizontal. It was a wonderful mechanical analogy that made understanding the effect of convex and concave lenses intuitive. The show was very successful; by 1954 it was broadcast by 91 stations. Mr. Wizard Science Clubs were started throughout North America, numbering 50,000 by 1965. The show moved from Chicago to New York on September 5, 1955, and had produced 547 live broadcasts by the time the show was canceled in 1965. The show was cited by the National Science Foundation and American Chemical Society for increasing interest in science, and Herbert won a Peabody Award. |
