Infrasonics. People have been hearing stories about this sort of thing for ages. But…. …
Franco/Russian scientist Vladimir Gavreau nei Gavronsky started off the study of infrasonics in the 1960s, when he and his lab assistants experienced pain in the ear drums and shaking lab equipment, but no audible sound was picked up on his microphones.
Originally posted by Wikipedia:
Infrasound sometimes results naturally from severe weather, surf,lee waves, avalanches, earthquakes, volcanoes, bolides, waterfalls, calving of icebergs, aurora, lightning and upper-atmospheric lightning. Nonlinear ocean wave interactions in ocean storms produce pervasive infrasound vibrations around 0.2 Hz, known as microbaroms.
Infrasound can be generated by man-made processes such as sonic booms and explosions (both chemical and nuclear), by machinery such as diesel engines and older designs of down tower wind turbines and by specially designed mechanical transducers (industrial vibration tables) and large-scale subwoofer loudspeakers.
The Comprehensive Nuclear-Test-Ban Treaty Organization uses infrasound as one of its monitoring technologies (along with seismic, hydroacoustic, and atmospheric radionuclide monitoring).
Whales, elephants, hippopotamuses, rhinoceros, giraffes, okapi, and alligators are known to use infrasound to communicate over distances—up to hundreds of miles in the case of whales. It has also been suggested that migrating birds use naturally generated infrasound, from sources such as turbulent airflow over mountain ranges, as a navigational aid.
Elephants, in particular, produce infrasound waves that travel through solid ground and are sensed by other herds using their feet, although they may be separated by hundreds of kilometres.
Scientists accidentally discovered that the spinning core or vortex of a tornado creates infrasonic waves. When the vortices are large, the frequencies are lower; smaller vortices have higher, though still infrasonic, frequencies. These low frequency sound waves can be detected for up to 160 kilometres (100 mi) away and can help provide early warning of tornadoes.
Which may serve to explain why there are so many tremors after a very large magnitude quake without the accompanying storms that are required for lesser spell breakers.
I have been pursuing the idea that large differences in the air pressures between High and Low vortices. And they just have not occurred over this spell since the disaster first ruptured at Chile on the 28th February 2010 (Last Sunday at the time of writing.)
We're only half way through this spell though it appears to be reaching an hiatus as sometimes happens though I have no explanation for the phenomena. The MetOffice has now posted the 0600 chart and it is as they predicted:
Obviously it is still an extant Low but it is now in a region that it belongs in during Winters.
Maybe it is something to do with the placement of the High in the middle of the North Atlantic. This is something that is most common in Summer.
What sort of frequencies would be best suited for channelling through a tunnel between them I wonder. Something akin to the sound of the earth at Chile?
Whale cries can be heard thousands of miles away when they call through ocean depths where temperatures can hold the frequencies they use in the same way that optical fibre holds certain frequencies of light.
When bulls start making mating calls, they hang head down in the water. Maybe migrating whales dive deep to hear the messages?
All good stuff to ponder. Makes a change from porn and gambling anyway.
The next phase of the moon BTW is on the 7th March. 15:42!! Another difficult one.
I have the idea that the channel to look for is the 1016 millibar path at sea level. I wonder what height variations there will be to that.