Museum Waalsdorp – Air Acoustics
04 Ago 06
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http://www.museumwaalsdorp.nl/en/airacous.html
“From the first world war until the 30’s air acoustics played an important role in the air defence. Air vehicles carrying a weapon could not be located from the ground e.g. at night time or under cloudy conditions. As radar was still to be discovered, vision had to be supplemented by hearing using the sound of the engines”.
Tech inspiration: Air acoustics during the World War I — 21talks wrote:
[...] Remember that at this time, “air vehicles carrying a weapon could not be located from the ground e.g. at night time or under cloudy conditions. As radar was still to be discovered, vision had to be supplemented by hearing using the sound of the engines.” Terrific. (via mediateletipos) [...]
Posted on 07-Ago-06 at 9:33 pm | Permalink
chiu longina wrote:
tanks
Posted on 07-Ago-06 at 10:59 pm | Permalink