Loading ...Back in the 60’s , while in college , I had an idea for crowd control using beamed sound and actually developed a ‘speaker’ that could focus sound within a small circle of a couple of feet in diameter at a distance of about 200 feet .
At the time , the military in (France ?) had determined that sub-audible sound between 5 and 10 Hz could create nausea in humans . It is quite possible that the intense low frequency rumblings of an earthquake is lethal to bees ( and other insects too , in that case ). I believe I read somewhere that dogs can somehow sense an impending earthquake and become agitated .
Goldie re: Bees
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