Doug Huffman wrote:
Will some one please define 'concussion', as used a number of times in this thread, so that it will make sense in this context, maybe the self-proclaimed 'scientist'?........
That would be me.
The use of the term "concussion", which is defined as mild brain trauma, from its Latin roots for violent shaking, in the context of this thread, for me, goes back to old WWII movies.
The bomb falls on the surface and kills the people hiding in the tunnels and the smart man that is always present in these movies says, "Well the concussion got them".
The hero solider to his buddies, "We need to get them out of that cave, I will use this concussion grenade to get them." He throws the grenade to the mouth of the cave and it goes boom. When they search the cave they find dead people with no marks on them.
The misnomer as applied here is to the associated "shock wave" from the blast of the bomb or the grenade, or the firing of the round at the enclosed shooting range.
It is known that the term "concussion" refers to the brain trauma condition, but from my early days of movie going, it has been broadened to include the shock wave which produces the brain trauma.
This concept still applies here, along with the allergies from the black gunk in your nose and the hearing protection that is not adequate and so on.
Thanks Doug, for asking.
Personally I have learned a lot from this thread.