In 1844 – Samuel Morse sent the message “What hath God wrought” from the Old Supreme Court Chamber in the United States Capitol to the Mount Clair train depot in Baltimore, Maryland. It was the first public demonstration of the telegraph. In 1935 – General Electric Co. sold the first spectrophotometer. It could detect...

In 1825, William Sturgeon exhibited the electromagnet in a practical form for the first time. The exhibition accompanied the reading of a paper, recorded in the Transactions of the Society of Arts for 1825 (Vol xliii, p.38). In 1908 – John Bardeen was born. He grew up to win the Nobel Prize twice, once...

In 1973 – Bob Metcalfe of the Xerox Palo Alto Research Center wrote a memo on an IBM selectric typewriter, outlining how to connect personal computers to a shared printer. Metcalfe says “If Ethernet was invented in any one memo, by any one person, or on any one day, this was it.” In 1980...

In 1937 – North Pole-1 became the first scientific research station to operate on the drift ice of the Arctic Ocean. The Soviet Union established it about 20 km from the North Pole. It operated for 9 months, and travelled 2,850 kilometres. In 1952 – IBM announced the Model 701, the first computer designed...