2021-07-04, 23:25
How Underground Fiber Optics Spy on Humans Moving Above
Vibrations from cars and pedestrians create unique signals in cables. Now scientists have used the trick to show how Covid-19 brought life to a halt.
https://www.wired.com/story/how-undergro...ving-above
Vibrations from cars and pedestrians create unique signals in cables. Now scientists have used the trick to show how Covid-19 brought life to a halt.
https://www.wired.com/story/how-undergro...ving-above