atomic bombs dropped on Hiroshima and Nagasaki rise in public television broadcasting transistor developed by Bell Labs as the first alternative to the vacuum tube Wiesner with Dr. Y.W. Lee invents auto-correlator, a device used to decrease radar and radio noise Soviets test an atomic bomb North Korea invades South Korea UNIVAC I, the first commercial computer, is delivered to the U.S. Bureau of the Census 1945 1946 1947 1948 1949 1950 1951 works at the Los Alamos Laboratory, New Mexico becomes Assistant Professor of Electrical Engineering at the Massachusetts Institute of Technology and begins research at RLE (Research Laboratory for Electronics), a group stemming from the wartime Radiation Laboratory second son, Zachary Kurt Wiesner is born becomes Associate Professor at MIT receives President's Certificate of Merit, the nation's second highest civilian award for outstanding service to the country third child, Elizabeth Ann Wiesner, is born completes Ph.D. in electrical engineering at the University of Michigan begins experiments on scatter propagation of radio waves works on panels for U.S. government joins American Academy of Arts and Sciences