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A comment on How Photos Were Transmitted by Wire in the 1930s. Parent comment

Re:How Photos Were Transmitted by Wire in the 1930s by lagrange77 on Wednesday March 13, 2024 @07:25PM (#39698789)
As someone else also pointed out, this video about the differential is fantastic!

https://www.youtube.com/watch?v=yYAw79386WI

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