No, because you, “bet this wouldn't have to contact your body to kill you:”Why? Because I think bullets create pressure waves? Or, because I think the guy shot the deer through the eyes?
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No, because you, “bet this wouldn't have to contact your body to kill you:”Why? Because I think bullets create pressure waves? Or, because I think the guy shot the deer through the eyes?
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give it a few minutes...every time i think ive seen it all something else happens that makes me think WTF?Hi,
We have reached the most stupid shit ever posted on the www......
So everyone should resume normal SH forum subsections because....
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Nothing more stupid will ever be posted; so might as well find another thread, lolol
Sincerely,
Theis
So, what do you think comprises this wave?That is a Mach shock wave, not a pressure wave. Please keep trying.
I wasn't speaking about a bullet. Please try again.No, because you, “bet this wouldn't have to contact your body to kill you:”
At a local gun rang a while back and heard this.
Shooter: why are 22 rem fire not allowed at 100 yard range?
RO: 22 are not fast enough to make it. You'd have to hold over the target to get an hit and that's dangerous.
I was at the range one day working on cold bore shots. I'd shoot one shot and then shoot my .17 hmr for about 15 minutes, then shoot the 6.5 again. RO came over as saw me shooting the rimfire and told me it wasn't allowed. He said something similar. I laughed, told him lets walk down and look at the target, the group is just over an inch. He decided I could keep shooting it.![]()
It literally doesn’t matter what you object you’re speaking about.I wasn't speaking about a bullet. Please try again.
People have literally broken the sound barrier with their OWN BODIES, and suffered no ill affects.I wasn't speaking about a bullet. Please try again.
Have to zero on a house of cards instead. They’re impervious to pressure waves.I’ve heard you have to zero a 50bmg on 4” steel because if you use paper it will just keep blowing it apart from the shock wave. Even a miss just blows the paper up so it’s impossible to see where you hit.
What happens if 2 50 cal hit head on...black hole opens up and swallows the world?
What happens if 2 50 cal hit head on...black hole opens up and swallows the world?
They can't hit head on. It has to be a near miss from opposite directions or it doesn't work.What happens if 2 50 cal hit head on...black hole opens up and swallows the world?
It's caused when the bow wave can no longer propagate upstream ahead of the body. There is a velocity transition across the shock wave that results in both higher static pressure and temperature behind the shock wave than in front, but with a commensurate decrease in dynamic pressure.So, what do you think comprises this wave?
I think you're the one that should try again.
RR Olympus and and his friend, variable intake ramp, would like a word with you.most famously demonstrated by the still completely awesome J-58 engine with it's movable spike.
The Valkyrie got there first. The xb-70 was retired the year concorde first flew.RR Olympus and and his friend, variable intake ramp, would like a word with you.
Thank you for your informed response. Since we are talking about supersonic flight from a sharp-nosed object, I didn't think a bow wave would apply here. My observation was that I wouldn't want to be standing within inches of this (pic below) when it passed by. To me, the question would be whether or not a .50 BMG shock wave could carry enough energy to be deadly. I don't think it could. As I said, I think he shot the deer through the eyes.It's caused when the bow wave can no longer propagate upstream ahead of the body. There is a velocity transition across the shock wave that results in both higher static pressure and temperature behind the shock wave than in front, but with a commensurate decrease in dynamic pressure.
This is also called a pressure discontinuity.
This effect is widely used in aircraft engines that need top operate in the supersonic zone, and is most famously demonstrated by the still completely awesome J-58 engine with it's movable spike.
It's still not a pressure wave though. Bow wave and pressure wave refer to to 2 separate phenomena in fluid dynamics. In common use a bow wave is often referred to as a pressure wave, but this is a strict misuse of the term.
If you want an example of a pressure wave in this context, it would be the roar of the jet engine heard after the sonic boom has passed overhead.
Edited to fix a couple of typos. I hate typing on an iPad.
Reading these fellas talking about jet engines and pneumatic dynamics made me realize how stupid I am.
You don't like standing next to clouds?Thank you for your informed response. Since we are talking about supersonic flight from a sharp-nosed object, I didn't think a bow wave would apply here. My observation was that I wouldn't want to be standing within inches of this (pic below) when it passed by. To me, the question would be whether or not a .50 BMG shock wave could carry enough energy to be deadly. I don't think it could. As I said, I think he shot the deer through the eyes.
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If you will notice, there is a lot more happening around this aircraft than just "clouds." Look at what is happening in the water behind and 30 feet below it. If nothing else, though momentary, I don't know what that much instantaneous pressure differential would do to you if you were within inches of it. It would be interesting to see what Mythbusters said about it. I'll make the time.You don't like standing next to clouds?
Also, even mythbusters have done both the .50 cal and supersonic jet shockwaves things already.
If you will notice, there is a lot more happening around this aircraft than just "clouds." Look at what is happening in the water behind and 30 feet below it. If nothing else, though momentary, I don't know what that much instantaneous pressure differential would do to you if you were within inches of it. It would be interesting to see what Mythbusters said about it. I'll make the time.
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Watching the water after the plane passes there is no real effect on it at all. No waves or anything of the sort.Shock waves
Here's something interesting regarding a supersonic cannon-fired shock wave. From the article:Watching the water after the plane passes there is no real effect on it at all. No waves or anything of the sort.
Sheesh! You still don’t get it do you? As the saying goes, you don’t know what you don’t know and you’ll never know what you are actually talking about. The ‘shock wave’ they are talking about in that article is actually the muzzle blast and NOT a shock wave caused by the cannon ball. I’ve seen a lot of pig-headed morons that refuse to give up, but never any as slow witted at yourself. Take that as a compliment.Here's something interesting regarding a supersonic cannon-fired shock wave. From the article:
"Maintaining a safe firing distance is important, though, since if a person is standing within 10 meters of the cannon, the shock wave could inflict permanent damage or even kill them."
Of course, this thing generates a wavefront much bigger than a .50 BMG. But, maybe along the lines of a supersonic aircraft?
Thunder Generator
Do you have a reading comprehension problem? There is no cannon ball. I am talking about a wavefront sufficient in size. The .50 BMG likely does not posses this. The supersonic jet does. That's obvious by looking at the photos. The question becomes if you are close enough to the supersonic object to feel the maximum energy of the wavefront, will it harm you.Sheesh! You still don’t get it do you? As the saying goes, you don’t know what you don’t know and you’ll never know what you are actually talking about. The ‘shock wave’ they are talking about in that article is actually the muzzle blast and NOT a shock wave caused by the cannon ball. I’ve seen a lot of pig-headed morons that refuse to give up, but never any as slow witted at yourself. Take that as a compliment.
"Anyone within 30 to 50 meters from the cannon will feel like he's standing in front of a firing squad," said Igor Fridman, president of PDT Agro, who developed the system. "He'll feel and hear the blast, but he won't be hurled to the ground. He'll be able to run away unharmed … and that's the point of this application."Do you have a reading comprehension problem? There is no cannon ball.
I totally agree. Thank you.In summary...
- Sharp air pressure gradients can kill you
- Bullets of any size flying supersonic don't create powerful enough pressure gradients to kill you
- Jet engine exhaust and cannon muzzle blast can hurt/kill you
- Supersonic semi trucks flying nearby might hurt you-- jury is still out.
You are not getting hurt from a shock wave made by the cannon projectile. You are getting hurt by the concussive blast released by an explosion. You stand 100 yards in front of it the cannon projectile passing you by inches is not going to hurt you besides the giant shit in your pantsHere's something interesting regarding a supersonic cannon-fired shock wave. From the article:
"Maintaining a safe firing distance is important, though, since if a person is standing within 10 meters of the cannon, the shock wave could inflict permanent damage or even kill them."
Of course, this thing generates a wavefront much bigger than a .50 BMG. But, maybe along the lines of a supersonic aircraft?
Thunder Generator
If you will notice, there is a lot more happening around this aircraft than just "clouds." Look at what is happening in the water behind and 30 feet below it. If nothing else, though momentary, I don't know what that much instantaneous pressure differential would do to you if you were within inches of it. It would be interesting to see what Mythbusters said about it. I'll make the time.
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There’s less of a disturbance in the water than my kid’s 10hp tin boat kicks up. Are you STILL on about this?If you will notice, there is a lot more happening around this aircraft than just "clouds." Look at what is happening in the water behind and 30 feet below it. If nothing else, though momentary, I don't know what that much instantaneous pressure differential would do to you if you were within inches of it. It would be interesting to see what Mythbusters said about it. I'll make the time.
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That condensation is caused by nothing more than a localised low pressure region in a particularly humid atmosphere.If you will notice, there is a lot more happening around this aircraft than just "clouds." Look at what is happening in the water behind and 30 feet below it. If nothing else, though momentary, I don't know what that much instantaneous pressure differential would do to you if you were within inches of it. It would be interesting to see what Mythbusters said about it. I'll make the time.
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I have a bullwhip.
I could snap tiny twigs holding leaves or cut leaves. From historical examples a whip will cut skin. Some pros can cut aluminium cans open.
After this can we get back to the stupid crap?