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Acoustic mirrors are bizarre, monolith-like structures once used to detect incoming aircraft. Their usefulness was cut short as they were replaced by the radar. Today, we have a look at what remains of the once-vast network.
Learn more about your ad choices. Visit megaphone.fm/adchoices
By Ryan Socash5
33 ratings
Acoustic mirrors are bizarre, monolith-like structures once used to detect incoming aircraft. Their usefulness was cut short as they were replaced by the radar. Today, we have a look at what remains of the once-vast network.
Learn more about your ad choices. Visit megaphone.fm/adchoices