Tech History Today – April 21

In 1962 – President John F. Kennedy opens the Seattle World’s fair by telephone from Palm Beach, Florida. He pressed a gold telegraph key which focused an antenna at Andover, Maine and a Navy radio telescope station in Maryland on a star to pick up a 10,000 year-old radio signal. That in turn set in motion various exhibits at the fair.

In 1964 – Satellite Transit-5BN-3 failed to reach orbit after launch. It dispersed 2.1 pounds (0.95 kg) of radioactive plutonium in its SNAP RTG power source.

In 1988 – Tandy Corp. held a press conference in New York to announce its plans to build IBM PS/2 clones.

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