Assaulted by a paint ball gun... - Page 4

Thank you! Im glad SOMEONE actually takes the time to read, and actually think about whats being said before replying.

I think I'll believe the word of Dr.Kruzelnicki,who is a doctor,physicist and engineer.I believe he knows more about the physics of falling objects than you.
The second link proves you wrong,since you stated that such an injury is unlikely and the article shows that it is.
It is virtually impossible to fire a bullet absolutely vertically.If it were possible,the bullet would fall back into the muzzle of the gun or very close to it.The bullets fired from guns pointed upwards will always travel in a parabolic arc.
Please explain how Dr. Kruzelnicki's explanation "flys in the face of science"?
You can't,can you?

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http://www.florilegium.org/files/COMBAT/slings-msg.html
Stefan's Florilegiumhttp://cal.vet.upenn.edu/saortho/chapter_36/36mast.htm
http://cal.vet.upenn.edu/saortho/cha...d/02_12_04.htm
Gunshot Wound Ballisticshttp://www.bb-guns.org/article_bbgunsinjury.htm
BB Guns - Articles - A case of a BB-gun pellet injury to the ethmoid sinus in a childhttp://answers.google.com/answers/threadview?id=6638
Google Answers: middle east conflicts

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For being a "physicist" he utterly and completely ignores the fact that the bullet will likely tumble on its descent, and not fall back to earth in the same manner in which it launched. I dont say that, physics does. The earth isnt a vacuum.

Going from your second link (which proves my point, again)
"
Datum 1. At first I thought being struck by a bullet falling straight down would be no worse than getting hit over the head with a two-by-four--not the average guy's idea of fun, but not fatal either. What goes up must come down, but it needn't do so at the same speed. You run up against what's known as "terminal velocity." A bullet fired straight up will slow down, stop, then fall to earth again, accelerating until it reaches a point where its weight equals the resistance of the air. That's its terminal velocity.

For further insight, we turn to Hatcher's Notebook (1962) by Major General Julian S. Hatcher, a U.S. Army ordnance expert. Hatcher described military tests with, among other things, a .30 caliber bullet weighing .021 pounds. Using a special rig, the testers shot the bullet straight into the air. It came down bottom (not point) first at what was later computed to be about 300 feet per second. "With the [.021 pound] bullet, this corresponds to an energy of 30 foot pounds," Hatcher wrote. "Previously, the army had decided that on the average an energy of 60 foot pounds is required to produce a disabling wound. Thus, service bullets returning from extreme heights cannot be considered lethal by this standard."

If 30 foot pounds doesn't mean much to you, the bullet made a mark about one-sixteenth of an inch deep in a soft pine board. About what you'd get giving it a good whack with a hammer. Note that we're talking about bullets shot straight up here. If the bullet is fired more or less horizontally, it may not lose much speed before returning to earth and could easily kill someone."

You should really stick to things you know about, because you dont know anything about this subject.

And, just for further discussion, dont post links without first reading them, so as to prove your point. It really makes you look bad when they start proving my point.

This post is terrible. First of all, believe who you want. But do so with reason and understanding. You just said the link proves him wrong because he stated an injury is unlikely and the article shows that it is. Those are your words and I think you would be well served to know the meaning of the word UNLIKELY. Let me help, it means improbable. Besides, nobody has said you won't get hurt. What has been said is it is UNLIKELY you will die.
As for you "bullet falling in the muzzle" comment. Are you serious? Also, you are trying to make the next arguement with an all inclusive term involved. If bullets fired from a gun pointed upward ALWAYS travel in a parbolic arc what happens if there is a gusting high wind? Oh wait, it might not be a parabola will it?
Besides, regardless of the bullets travels it is still held to the same rules as every other bullet so who cares if it is parabola. The bullet will still eventually loose the energy that pushed it out of the gun in the first place.

Besides that both articles prove his point.

Besides that, I dont know anyone who has an 11,000 ft vacuum tube laying around. A bullet simply CAN NOT and WILL NOT return to Earth in the manner in which it was fired.

And one more thing, the author of the article I quoted before makes reference to the LA Times. If you had actually done the research, you would know that the person or persons who fired those shots were 1.5 miles away from the victim. A bullet that travels in that kind of arc maintains its balllistic trajectory. Once again, just for those of you who still dont get it, a bullet fired straight up will not.

Nice to see someone else can think and read here.

I agree with both of you actually. But it will hurt a lot! Ever tried freezing some paintballs and shotting them at max speed out of a paint ball gun? It will be around the same 400fps, but the energy won't desperse like a normal paintball does. Same thing with the bullet.

But killing someone.........unlikely if it was shot straight up. Still there is that freak chance though.

Check out Mythbusters on April 23rd at 1:00 pm on The Discovery Channel. It is a repeat of the episode that aired April 19th. They were testing this very issue (bullets fired up).

TIVO'ed. I dont know how I ever lived without TIVO. Thanks!

Here is a recap of the episode. I hate to say Rob told you so, but...


http://kwc.org/mythbusters/2006/04/e...red_up_vo.html

Stevebaby? Mitosis? I dont think they will be responding to this thread anymore

NicE!!!!!!!

This episode clearly and unambiguously states that it is possible for a falling bullet to kill.It disproves what robbie-boy said .
You have already said that this is possible.robbie-boy says it's not.
Which of you is correct?

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The LA Times article refers to 118 injuries and 38 deaths.You have no way of knowing what distance all those bullets were fired from.
It is impossible to fire a bullet straight up without fixing the gun in place and precisely levelling it.It is quite unlikely that some drunk on New Years Eve is going to do this before negligently discharging the weapon.

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The attached link to the Baylor College of Medicine shows the velocity necessary to penetrate skin and fracture bone...precisely within the limits you mention.http://www.bcm.edu/oto/grand/02_12_04.htm
Gunshot Wound Ballistics

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