In 1951: TV viewers witnessed the live detonation of an atomic bomb blast, as KTLA in Los Angeles broadcast the explosion of a nuclear device dropped on Frenchman Flats, Nevada.
In 1972, the first scientific hand-held calculator the famous HP-35 was introduced for $395 by Hewlett-Packard. It was the first handheld caluclator to perform logarithmic and trigonometric functions with one keystroke.
In 1985 Shortly after it’s founding the November before, the Search for Extraterrestrial Intelligence kicked off. SETI Institute began operations.