Front pages (and usually back, middle or other pages) chosen at random (more or less) from my collection of mostly 20th Century mostly British newspapers. Weekly new posts on Sundays, a Random Cutting on Wednesdays and a Random Advert on Fridays.
Wednesday 13 February 2013
Random Cutting - Baird’s Noctovisor (1927)
Click to Read
John Logie Baird’s Noctovisor, a device for ‘see
in the dark and through fog’ using infared radiation proved to be impractical
so he tried again in 1928 using radio waves and invented what was, to all
intents and purposes, Radar.
No comments:
Post a Comment