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A comment on London tube map made from a working circuit board.

Re:London tube map made from a working circuit board by tempodox on Wednesday June 24, 2020 @08:43AM (#23627203)
So cool. I bet the electrons travel by tube.
[ Parent | on HN ]
Re:London tube map made from a working circuit board by kps on Wednesday June 24, 2020 @10:13AM (#23628082)
They don't; it's all solid-state.
[ Parent | on HN ]