At one point they figured out how to capture vibrations of a chip bag to "hear" a conversation of those nearby.
Now they're using dark fiber to measure seismic activity above the cable. Results from this distributed acoustic sensing is not as detailed as the vibrating chip bag noted, but it has piqued interest enough to look into its possible applications further.
Now they're using dark fiber to measure seismic activity above the cable. Results from this distributed acoustic sensing is not as detailed as the vibrating chip bag noted, but it has piqued interest enough to look into its possible applications further.
