I have heard that some aircraft of the Luftwaffe during world war 2 used special ultrasounds to cause fear to the population they bombarded. I would like to know if this is possible.
Grman dive bombers like Stukas had air-driven sirens on them that would get louder as they went into their bombing dive--not ultrasonic, but designed to inspire fear, and apparently quite effective at that.
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MontereyJack
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Fri 10 Jun, 2011 11:18 am
It's infrasonic sound (below 20Hz) that's sometimes thought to induce fear, not ultrasonic. Look at "Infrasound" in Wikipedia, particularly the subsection "Infrasonic 17 Hz Tone experiment"