Before the invention of radar during World War II, incoming enemy aircraft were spotted using "sound locators" that looked more like musical instruments than tools of war. This one was being used at ...
Add Yahoo as a preferred source to see more of our stories on Google. After 22 days above and below the sea, the Maritime Archaeology of Guadalcanal expedition (NA173) concluded its comprehensive and ...
Discover how the U.S. Ghost Army used inflatable tanks and sound to save 30,000 lives in WWII. A technical look at the 23rd ...
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