Template:Selected anniversaries/February 12: Difference between revisions

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||1935: USS ''Macon'', one of the two largest helium-filled airships ever created, crashes into the Pacific Ocean off the coast of California and sinks.
||1935: USS ''Macon'', one of the two largest helium-filled airships ever created, crashes into the Pacific Ocean off the coast of California and sinks.


File:Robert J. Van de Graaff.jpg|link=Robert J. Van de Graaff (nonfiction)|1935: Physicist and engineer [[Robert J. Van de Graaff (nonfiction)|Robert Jemison Van de Graaff]] receives a patent for his Electrostatic Generator design (U.S. No. 1,991,236), able to generate direct-current voltages much higher than the 700,000-V which was the state of the art at the time using other methods.
File:Robert J. Van de Graaff.jpg|link=Robert J. Van de Graaff (nonfiction)|1935: Physicist and engineer [[Robert J. Van de Graaff (nonfiction)|Robert Van de Graaff]] receives a patent for his Electrostatic Generator design (U.S. No. 1,991,236), able to generate direct-current voltages much higher than the 700,000-V which was the state of the art at the time using other methods.


||1935: Physicist and engineer Robert Watson-Watt submitted the idea for Radar to the Air Ministry in a secret memo, "Detection and location of aircraft by radio methods" . The method would be tested on Feb 26 in a field just off the present day A5 in Northamptonshire near the village of Upper Stowe. Watson-Watt received a patent on his device on April 2. Pic.
||1935: Physicist and engineer Robert Watson-Watt submitted the idea for Radar to the Air Ministry in a secret memo, "Detection and location of aircraft by radio methods" . The method would be tested on Feb 26 in a field just off the present day A5 in Northamptonshire near the village of Upper Stowe. Watson-Watt received a patent on his device on April 2. Pic.

Revision as of 06:56, 13 February 2020