Template:Selected anniversaries/December 10: Difference between revisions

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||1851: Karl Freiherr von Drais born ... forest official and significant inventor in the Biedermeier period. Dandy horse. Pic.
||1851: Karl Freiherr von Drais born ... forest official and significant inventor in the Biedermeier period. Dandy horse. Pic.


||1860: Margaret Eliza Maltby born ... physicist notable for measurement of high electrolytic resistances and conductivity of very dilute solutions.  
||1860: Margaret Eliza Maltby born ... physicist notable for measurement of high electrolytic resistances and conductivity of very dilute solutions.  Pic.


||1868: The first traffic lights are installed, outside the Palace of Westminster in London. Resembling railway signals, they use semaphore arms and are illuminated at night by red and green gas lamps.
||1868: The first traffic lights are installed, outside the Palace of Westminster in London. Resembling railway signals, they use semaphore arms and are illuminated at night by red and green gas lamps.

Revision as of 07:36, 7 February 2019