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After 140 years, this old technology still keeps trains safe | Video, 6m 52s
Posted by: WebDigger ()
Date: April 21, 2022 08:49PM

""Anderson's Piano" is a set of wires and signals at the Pass of Brander, near Falls of Cruachan in Scotland, that try to detect when there might be a boulder on the track. They're 140 years old, and so far no-one's been able to find a better solution — but they're working on it."
-- [www.youtube.com]

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