Today in Tech History – January 28, 2018

1878 – The first commercial telephone exchange in the US was installed at New Haven, Connecticut, and served 21 subscribers connected by a single strand of iron wire. Only two conversations could be handled simultaneously and six connections had to be made for each call.

http://www.nps.gov/nhl/find/withdrawn/telephone.htm

1960 – The Communications Moon Relay System was inaugurated publicly when a facsimile picture of the USS Hancock was transmitted wirelessly by radio wave to Washington DC, by being bounced off the moon.

http://www.nrl.navy.mil/accomplishments/systems/moon-relay/

1986 – The Space Shuttle Challenger experienced an O-ring failure in the right solid rocket booster during flight. 73 seconds after liftoff a catastrophic explosion claimed crew and vehicle.

http://www.nasa.gov/mission_pages/shuttle/shuttlemissions/archives/sts-51L.html

2001 – The Baltimore Ravens and the New York Giants faced off in Tampa Bay, Florida, for Super Bowl XXXV, and facial-recognition surveillance cameras pointed at tens of thousands of fans entering the game. It found 12 false positives.

http://besser.tsoa.nyu.edu/impact/w01/Papers/Lopez.htm

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