Radar is howling , certain , but militaries did n’t always have the benefit of radiolocation to pinpoint foe locations . Before that , there was sonar . Underwater is one matter , though . On estate , you necessitate big victrola - like contraptions that looked uncomfortable as all hell .
These acoustic locater wreak in much the same room as a submarine or bat ’s sonar would — through alive and peaceful echolocation . wheeler dealer could merely listen to the surrounding battlefield to analyze for aircraft or locomotive , or grow a signaling that would reverberate off the aloof artillery and give a sense of the opposition ’s location .
This method was , of course , replaced by the much more accurate and probably lighter radar . Can you think lugging these things around ? Still , it was a start . I ’d like to own one of these things just as an ice breaker . [ A Daily TrendsviaBuzzfeed ]
Sonar
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