Template:Selected anniversaries/December 9: Difference between revisions

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|File:LED Traffic Light.jpg|link=Traffic light (nonfiction)|1868: The first [[Traffic light (nonfiction)|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.
|File:LED Traffic Light.jpg|link=Traffic light (nonfiction)|1868: The first [[Traffic light (nonfiction)|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.


File:Fritz Haber.png|link=Fritz Haber (nonfiction)|1868: Chemist [[Fritz Haber (nonfiction)|Fritz Haber]] born. He will receive the Nobel Prize in Chemistry in 1918 for his invention of the Haber–Bosch process, a method used in industry to synthesize ammonia from nitrogen gas and hydrogen gas.
File:Fritz Haber.png|link=Fritz Haber (nonfiction)|1868: Chemist [[Fritz Haber (nonfiction)|Fritz Haber]] born. He will receive the Nobel Prize in Chemistry in 1918 for his invention of the Haber–Bosch process, a method used in industry to synthesize ammonia from nitrogen gas and hydrogen gas. Haber will also do pioneering work in chemical warfare, weaponizing chlorine and other poisonous gases during World War I.


||1881: Carl Culmann dies ... structural engineer. Pic.
||1881: Carl Culmann dies ... structural engineer. Pic.

Revision as of 16:07, 9 December 2019