Japanese War Tubas
Posted by Ross Rosenberg
Or so it would appear, however these are actually enormous acoustic locators. Before the advent of radar, armies used devices like these to determine the position of enemy aircraft by listening for the rumble of their engines. This photo is from the 1930s. The gentleman on the right with the saber is Emperor Hirohito.
Acoustic Location and Sound Mirrors [The Douglas Self Site] : Kircher Society : Cabinet of Wonders
Categories: Photography, Propaganda, Technology, Japan
Posted at 12:16 pm on October 15, 2007
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