Tech History Today – April 25

In 1944 – Lt. Carter Harman of the 1st Air Commando Group rescued four men from the jungle in Burma Flying a Sikorsky YR-4 helicopter. It was the first combat rescue by helicopters in the U.S. Army Air Forces.

In 1953 – Watson and Crick’s presented their findings on the double helical structure of DNA in the publication Nature. They noted that the structure “suggests a possible copying mechanism for the genetic material.” 50 Years later the Human Genome Project had concluded sequencing the genome and published a follow-on in Nature on their vision for genetic research.

In 1961 – Robert Noyce received the US patent for the silicon-based integrated circuit. He went on to found the Intel Corporation with Gordon E. Moore in 1968. Noyce fought a long patent rights battle with Jack Kilby who invented a germanium based integrated circuit.

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