The article discusses a fascinating use of laser technology, particularly in the context of creating laser microphones that can pick up conversations through vibrating glass windows. Initially developed for espionage by agencies like the CIA and KGB, this technology is now accessible to DIY enthusiasts. By using basic components like a laser pointer and a photodiode, individuals can construct their own surveillance devices. Though simple, the technique reveals profound implications for privacy and the potential for misuse, emphasizing the duality of technological advancement.
However... this device demonstrates an incredibly cool (and potentially dangerous) use of laser tech that can even be used in novel ways.
The gadget works by shooting a laser beam and calculating the exact number of microseconds it takes to hit an obstacle, bounce back, and get received by the laser shooter.
That same tech, once the domain of intelligence agencies, is now a DIY project for the modern tinkerer.
The concept is deceptively simple: shine a laser on a window, and as people talk inside, their voices cause tiny vibrations on the glass.
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