Acoustic Radar from the Past
June 1st, 2005 | Filed under: Mechanical Tech, Past, Technology | 4 Comments »
Douglas Self’s Acoustic Radar page from his collection of retro tech showcases some interesting contraptions from World War I and II which were designed to passively detect and amplify the sounds of distant aircrafts. Check out the monowheel page too.
more at LA6NCA
Acoustic locators in Japan (1930s)
US Army sound locator
hello
i’m student of emam hosein university of iran and i reserch about acoustic detection systems , I want som information about microphones and airplan acoustic information
tank you
BARSOOMIAN BALOGNA?
I have total information on acoustic detection systems. complete history of all devices used by Allied armed forces in WWI and WWII, Korea, VietNam and other conflicts all the way to today.
I have all plans, specifications and blueprints. I have a large wen on my chin with black hairs coming from it. I need electrolysis and a shave to make myself acceptable to the girls who have given up being chosen as virgins for suicide bombers.
Boola boola boo. You can listen to the muezzin calling from the minaret to announce the arrival of the time to surrender to the Infidels.
Why is it OK to riot and kill people when some obscure cartoonist in Denmark draws a cartoon criticizing Muslims but you don’t think about the thousands of anti-christian, anti-semitic cartoons you muslims publish every week all over the world?
Now use your acoustic listening system to that question, raggazo!