Today in Tech History – May 20, 2015

20140404-073853.jpgIn 1875 – 17 nations (including the US) signed the ‘Convention du Mètre’ in Paris, France, establishing the International Bureau of Weights and Measures.

In 1891 – The first public demonstration of a prototype Kinetoscope was given at Edison’s laboratory, for approximately 150 members of the National Federation of Women’s Clubs. The New York Sun reported on the demonstration.

In 1958 – Robert Baumann obtained a patent for a satellite. (US. No. 2,835,548). The patent stipulated the government could use the technology without having to pay royalties.

In 1990 – The Hubble Space Telescope sent its first light image back to Earth, taken with the wide field/planetary camera.


Subscribe to the podcast. Like Tech History? Get the illustrated Year in Tech History at Merritt’s Books site.