Here is an explanation for the amazing "projectile" form which is seen in the video exiting the meteor at high speed in the forward vector - at least this is the best explanation that I can come up with (besides a faked video).
The initial meteor consists of an agglomeration of two of the better known varieties of meteors which have been bound together in space by gravity - but they do not intermix and will be affected differently, on entering the atmosphere. There is a large segment of a lower melting point chondrite composition. Then there is a small nickel-iron-cobalt component - which is much higher in melting point but will soften with heat. The large segment enters first heats up, and essentially it melts into a thick blob - and at the same time, it protects the smaller iron component as a heat shield, but it decelerates rapidly on atmospheric contact. The trailing segment does not do the same. Instead the iron nickel component which is trailing, stays solid but softens, and at some point is forced through the liquefied Chondrite blob when it decelerates - and is extruded into a projectile shape just as if it was a sausage going through an extrusion die. It is also accelerated by the extrusion process - and is expelled rapidly in the forward vector. Michel Julian once called this type of tubular compression/acceleration the "sphincter effect"... I do not think that Michel wants to be exclusively remembered on Vortex for that bit of insight, but it may be appropriate here :) Jones
