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Originally posted by FireballStorm
It's saying an asteroid/comet fragment entering the atmosphere would result in geomagnetic effects that are not at all like those produced when a nuclear devise detonates, but that is wrong The effects are very much like those of a nuclear blast, although each has it's own signature.
Originally posted by CAELENIUM
"... An electrical discharge far more powerful than the lightnings we associate with storm activity. However, still nothing more than an electric lightning discharge. To cause the Tunguska explosion the power of the electric lightning would have to be millions of times more powerful than normal lighning activity. That is my original theory... Lake Cheko might be simply the crater left behind after the electrical explosion that came out of the ground at that precise locaton.
Originally posted by bottleslingguy
I posted this a couple posts ago: "maybe the obejct is a fulgurite caused by the bolt of lightning from Teslas's experiment?"
Originally posted by bottleslingguy
reply to post by FireballStorm
no they were saying "it was more of an artificial signature like when a nuclear blast occurs in the upper atmosphere and not naturally occurring"
Originally posted by FireballStorm
reply to post by Gabor2000
I don't see why it couldn't.
Originally posted by FireballStorm
At the end of the day, many respectedresearchers have pored over the evidence, and come to the conclusion that it was probably a natural object. Whilst that does not prove that the object was natural with out any doubt, it does strongly suggest that it was.
Originally posted by Gabor2000
Just because the high-temperature plasma formed around an asteroid or a comet core entering the atmosphere (as well as in their trails) would recombine in several minutes, not in several hours.
Most long duration trains are associated with bright meteors and fireballs. When a meteoroid plunges into the atmosphere at a velocity of between 12 and 72 km/s, the air simply does not have time to flow around the meteoroid and, instead, tears into it. The result is that the atmospheric atoms, and those of the meteoroid, collide releasing electrons to produce a highly charged plasma. However, the ions quickly recombine and any excess energy is released as light - which we call a meteor. The whole process normally takes 0.1 - 0.8 sec.
With long duration trains the process has, for some unknown reason, slowed down. Various theories have been proposed but they all have their flaws. It seems possible, however, that the processes involved in sustaining long duration trains may be similar to those that produce ball lightning or kugelblitz.
Originally posted by FireballStorm
Considering that Tunguska was the daddy of all fireballs/bolides, and we have no others like it to compare, I would say it's reasonable to assume (given what I said above) that a much larger object like the Tunguska object, could result in even more prolonged ionization than we see with the more frequently encountered size range objects.