« Reply #13 on: Thursday 02 May 24 16:30 BST (UK) »
"What civilians don't appreciate is that when a canon makes a loud noise it also means that compressed air is heading towards the target and this can rock the brain inside the hard bony skull and injure the soft tissue - these soldiers will often never be freed from mental problems."
The statement above is misleading. Compressed air does not travel from a cannon to a target. The injuries referred to are due to an High Explosive artillery round detonating close to a victim. The resulting blast wave causes concussion.
Tony
The soldiers operating the cannons, wear ear defenders these days to protect their hearing. We learn something new every day and, for instance, now know that the "spent" missiles/bombs that were scattered about the ground after the Iraq war resulted in babies born with imperfections. The expectant mothers had been touching the metal which the locals later used for their own purposes.
There would be no sound and no light if the earth was in a vacuumed bottle. Sound travels through the air and if you have been under the flight path of an airplane breaking the sound barrier, then you would have heard a very loud "bang".
I remember sitting in a classroom of my new school. In walked the headmaster wearing his cloak and mortarboard
"Look how strong I am" he said holding up his arm to show his biceps. "I'm holding up 14 lbs per square inch, so why can I hold up my arm without it getting tired and wilting"?
One boy answered "Because there's 14 lbs per square inch all around and holding up your arm sir"
If you visit the youtube pages and search for "shell shock" - you will see what constant loud noises did to soldiers and sailors
Aberdeen: Findlay-Shirras,McCarthy: MidLothian: Mason,Telford,Darling,Cruikshanks,Bennett,Sime, Bell: Lanarks:Crum, Brown, MacKenzie,Cameron, Glen, Millar; Ross: Urray:Mackenzie: Moray: Findlay; Marshall/Marischell: Perthshire: Brown Ferguson: Wales: McCarthy, Thomas: England: Almond, Askin, Dodson, Well(es). Harrison, Maw, McCarthy, Munford, Pye, Shearing, Smith, Smythe, Speight, Strike, Wallis/Wallace, Ward, Wells;Germany: Flamme,Ehlers, Bielstein, Germer, Mohlm, Reupke