Fiber Optics Bring You Internet. Now They’re Also Listening to Trains

“Distributed acoustic sensing” looks for disturbances in fiber to detect earthquakes and even insects. Can it also improve rail safety?

Fiber Optics Bring You Internet. Now They’re Also Listening to Trains
“Distributed acoustic sensing” looks for disturbances in fiber to detect earthquakes and even insects. Can it also improve rail safety?
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