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Here Comes That Sound Again

Source: Metafilter ·

Youtuber Colsto posts their experiments with open source intelligence methods. In their latest video , they show how a combination of ADS-B , digital elevation models , and audio spectrograms can turn barely-audible airplane propeller noises into spatial location precise to 100 meters anywhere inside the United States and resistant to protection by filtering or muting. It's the same pre-GPS method memorably explained by James Burke in a 1978 episode of Connections , but without the expensive satellites.

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Here Comes That Sound Again is a website discovery curated from Metafilter. Youtuber Colsto posts their experiments with open source intelligence methods. In their latest video , they show how a combination of ADS-B , digital elevation models , and audio…

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