Today in Tech History – November 14, 2017

Today in Tech History logo1922 – The BBC sent its first daily transmission from station 2LO at Marconi House London. Arthur Burrows, first Director of Programmes, read the first newscast.
http://news.bbc.co.uk/aboutbbcnews/spl/hi/history/noflash/html/1920s.stm

1971 – The American space probe Mariner 9 began orbiting Mars becoming the first spacecraft to successfully orbit another planet.
http://nssdc.gsfc.nasa.gov/nmc/spacecraftDisplay.do?id=1971-051A

2007 – The last Direct Current electrical distribution system in the US was shut down by Con Edison in New York.

http://cityroom.blogs.nytimes.com/2007/11/14/off-goes-the-power-current-started-by-thomas-edison/

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