How Underground Fiber Optics Spy on Humans Moving Above
When last spring’s lockdown quieted the Penn State campus and surrounding town of State College, a jury-rigged instrument was “listening.” A team of researchers from the university had tapped into an underground telecom fiber optic cable, which runs two and h
https://www.greenground.it/2021/06/28/how-underground-fiber-optics-spy-on-humans-moving-above/
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