First of all, a clear distinction must be made between infrasound (1 Hz - 16 Hz) and ultrasound (20,000 Hz - 500,000 Hz and more...).
Contrary to WAB
and Donnie Eichar
, I think that the power of naturally produced infrasound is not sufficient, but it would be intellectually unwise to totally exclude artificially generated infrasound and ultrasound. https://forum.dyatlovpass.com/index.php?topic=116.0
Infrasound and ultrasound generators exist, or could theoretically exist, at present in more or less operational forms
or usable as sonic weapons. (This is a misnomer, as the vibrations produced are inaudible).
These sonic weapons have the characteristic (which can be considered an advantage or a disadvantage depending on the point of view) of being in principle non-lethal by direct effect.
Thus the hypothesis of a top secret test of a prototype sonic weapon on the night of 1 February 1959 on the Kholat Syakhl could not directly or simply explain the fractured skulls and caved-in chests.
Using ultrasound narrow directed beams are easily obtained with relatively low power for the generators.
Using infrasound, for the same range, generators with a much higher power output have to be made (or should be designed).
On the other hand, for the military, infrasound has the advantage of penetrating the armour of all battle tanks. Thus a hypothetical infrasonic weapon could have the effectiveness of a neutron nuclear bomb while being much more economical.
• This reinforces the possibility of the existence of top secret military research and testing of infrasonic weapons, (ultrasonic weapons are not
It would also be necessary to suppose that the secret could have been kept since 1959, i.e. under the successive governments of Khrushchev, Brezhnev... Yeltsin, Putin....
Transported by one of the first Mil Mi-6 helicopters available in 1959 (payload: 10 tons) to the Kholat Syakhl summit, a 10 Hz infrasound generator, with a power of the order of a jet plane, should cause intolerable abdominal pain at the 800 m level of the tent, but not at the level of the cedar tree 1500 m further on.....