151:"In developing a military weapon, scientists intend to revert to a policeman's whistle form, perhaps as big as eighteen feet across, mount it on a truck and blow it with a fan turned by a small airplane engine. This weapon, they say, will give forth an all-destroying 10,000 acoustic watts. It could kill a man five miles away. There is one snag: at present, the machine is as dangerous to its operators as to the enemy. The team is working on a way to focus it. Various systems of baffles have been tried, but the most promising method appears to be propagation of a different and complementary sound a wave length backward from the machine. This changes the frequency of airwave length moving in that direction, thus protecting anyone to the rear. There is, of course, a much simpler means of protection: turn the machine on from a safe distance. This summary of Professor Vladimir Gavreau's experiments with infrasound is based on the Sunday Times article. A much more comprehensive article has appeared in an American periodical,
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and shaking lab equipment, but no audible sound was picked up on his microphones. He concluded that it was infrasound and got to work preparing tests in the labs.
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Eléments constitutifs des automatismes: commande directe, asservissements, programmation numérique, par
Vladimir Gavreau
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One of
Gavreau's experiments involved an infrasonic whistle that, some say, has led to a line of research that has
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Burroughs cites his source as Frank Dorsey, "Joshua Knew a Thing or Two,"
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described the possibly fictional device as follows:
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