Walter Houser Brattain (/ˈbrætən/; February 10, 1902 – October 13, 1987) was an American physicist at Bell Labs who, along with fellow scientists John Bardeen and William Shockley, invented the point-contact transistor in December 1947.^[1] They shared the 1956 Nobel Prize in Physics for their invention. Brattain devoted much of his life to research on surface states.
https://en.m.wikipedia.org/wiki/Walter_Houser_Brattain

http://www.vwlowen.co.uk/arduino/xr2206/XR2206-function-generator.htm

https://en.m.wikipedia.org/wiki/Ground_loop_(electricity)

Svalbard (Norwegian pronunciation: [ˈsvɑːlbɑː, ˈsvɑl-];^[3] formerly known by its Dutch name Spitsbergen) is a Norwegianarchipelago in the Arctic Ocean. Situated north of mainland Europe, it is about midway between continental Norway and the North Pole. The islands of the group range from 74° to 81° north latitude, and from 10° to 35° east longitude. The largest island is Spitsbergen, followed by Nordaustlandet and Edgeøya.
https://en.m.wikipedia.org/wiki/Svalbard