In 1952 – The first hearing aid using a junction transistor went on sale, the model 1010 manufactured by the Sonotone Corporation in Elmsford, New York, U.S.
In 1959 – Physicist Richard Feynman gave a talk called “There’s Plenty of Room at the Bottom”, in which he suggested it should be possible to make nanoscale machines that can arrange atoms the way we want.
Subscribe to the podcast. Like Tech History? Get the illustrated Year in Tech History at Merritt’s Books site.