How does a bullet shot from a gun kill a person INSTANLY??

I do search forum..many factors included:

1) Bullet caliber
2) distance
3) What kind of gun in use.
4) Impact of the bullets.

I'm curios about this problem...why?????

& dun ask me why asking this question...

cos just curiosity & want to learn it....(note: this is an scientific & biology issue "or" it maybe something that cannot explain by science?? )

PLs dun post something like this: "when u die u know lo"... (appreciate for good comment )

Anyway thank u for viewing.

This post has been edited by peace230: Mar 14 2011, 11:21 AM

head shot?

btw if a bullet hits u, it will also bring heat n shockwave <-- got effect?

This post has been edited by soket: Jan 29 2011, 12:58 PM

the body goes into shock because of the extreme pain maybe

This is not RWI material.

1) Bullet Caliber, bigger the bullet, more potential force equals more damage
2) The further a bullet travel the slower it is, with the former point, there's less energy.
3) Gun is related to point 1 and 2, depending on bullet type, and muzzle velocity
4) This depends on the type of bullet, some bullet create more tissue trauma than others, it also depennds on where you were hit in the first place.

None of this matters, you kill someone instantly by stopping the brain or the heart.

Depends on your definition of instantly.

Human are technically still alive for a short moment prior to brain/heart malfunction. The same issue is plaguing death penalty legislator in their quest to find a execution method where death arrives faster than the sensation of pain/trauma.

How long is this moment?

you see when criminal taking a hostage if the police give him a heat-shot or heart-shot why the criminal don't have any chances to kill the hostage since it only need less then 1 second to trigger the gun . . .

He merely lost control of his motor skills + the shock and trauma from the bullet impact will definitely throw him off, imagine a slap to your face 10-20 times harder and you get the rough dea how much impact force a bullet has.

It doesn't mean everything shut down instantaneously unless you're able to severe every single nerve to the brain, at least that's the argument by people who support death by hanging. How long is this moment depends on the injury, but death is definitely not instant. We will never know, unless we can communicate with the afterlife and ask these people if they felt anything during the execution

This post has been edited by SeaGates: Jan 29 2011, 01:52 PM

Then we have to argue the definition of life

Moved to PhD School.

one kind of bullet hollow point i think will disintegrate when it enter the body. As a result shrapanels will destroy the organ around the point impact causing massive bleeding. the victim will die from massive blood lost. at least that is how i understand it.

A phd topic indeed!

A little of reference for your reading pleasure:

AK47 vs M16

During the valley battle in the middle east the US military found a major weakness of the M16 rifle is that despite it is far superior in velocity, accuracy, rate and recoil compare to the terrorist favorite AK47, it have a fatal weakness that M16 bullet is unable to kill instantly. Often, a terrorist would not even realized that he is being shot and continue fighting, even tough he might received a fatal wound.

Compare to AK47 that uses the .5in caliber(refer below post), the bullet is destructive enough to, if not immediately kill the target, would disable its ability to fight.

This is because M16 bullets often pass thru the body and causes minimal damage. AK47 bullet greater size and the low speed would often result in a small entrance, and leave a much bigger exit on the target, severing whatever flesh inside.

If explain with a fruit, M16 would leave a hole on an apple, while AK47 would turn the whole thing into pulp.

(edited: my bad, wrong information, the same size of 7.62mm has cause me wrongly relate the information with M40, which I though is using the .5in, thanks for the correction)

This post has been edited by rexis: Jan 30 2011, 12:39 AM

.5 inch? .5 inch would be the diameter of the .50 BMG. AK47 uses 7.62x39mm(.312) and not .50. The .50 was developed with anti-vehicle rather than anti personnel in mind but found it's use in modern sniper due to sheer destructive force/range/velocity/mass(which reduce wind sway/gravity drop). Beside, sniper are not only taking out personnel now but also anti-vehicle/material role, so carrying a big round solves the logistical issue of having to carry 2 guns or supplying 2 type of rounds to the sniper teams.

7.62x39 round perceived destruction compared to M16 5.56x45mm is due to it's caliber size and weight(8g vs 4g) Hague convention banned bullets that easily expands or deform on impact with the body(like hollow point) so caliber size will determine the damage inflicted, full metal jacket rounds tend to pierce better, but it also leave a smaller wound cavity compared to hollow point because of it's non expansive characteristic, the outer jacket also tend to fragment upon hitting harder body parts like bones but it's a characteristic of all bullet regardless of type, bullet fragmentation don't go very deep in as they usually have very wide surface area that dissipate kinetic energy very fast in the human body.

This post has been edited by SeaGates: Jan 29 2011, 11:57 PM

Thank for ppl who can give a good reply here. very appreaciate.


i got several point of view.


1) A bullet pass through the head...cos the "Brain neutron".. stop its immediately...unable to send the message to whole body...even your heart still pumping the blood...(simply explain) all this happen in nano second. - but a lady in england got shoot in their brain..but she not die instantly ..she able to call the policeman. after the police man come to her, she ask the policeman want some tea? while she another hand still cover the wounded. un explain in science teori.

2) God will. simple & may can be accept but someone.

imagine a cockroach without the head still can survive for 1 week & then die starving. Why human die instantly after shoot/shock in head or heart. So, i do read some article regard this issue. if the scientist can overcome & overwhelming it. imagine the consequences, the impact that will cos to mankind...

side question...if u believe in god/ghost/or spiritual.

imagine u get shoot at your head, but i still can stand while your "body/form" fall down...then u realise .." wait...this guy very similar/look like myself"...

anyway this is my own answer. Again, thank for viewing & reply..

^

1) She was not shot at the part of the brain that could result in near-instant death. People do survive gun shot wound to the head. Gabrielle Giffords is one of the latest example of that, the bullet probably entered her brain in such way that :

- It's did not hit in a life threatening area
- There isn't enough penetrative force to create direct damage
- The bullet didn't not create significant hydrostatic shock to injure other part further.

2) It's not God's will that cockroaches won't die if the head is severed

Biological view they're evolved differently than us, and our brain controls the involuntary of our organs. A shot to the brain/head can cause injury to the controls and shut us down.

This post has been edited by SeaGates: Jan 31 2011, 04:00 PM

Very good reference in scienctific of view. Thank alot for your reserch.

---

Added on January 31, 2011, 5:40 pmRegard the women get head shot still living: here is the link

http://www.dailymail.co.uk/news/worldnews/...zone-brain.html

Can it be say as god will???

This post has been edited by peace230: Jan 31 2011, 05:41 PM

"Dr Patrick Pritchard, a professor of surgery at the University of Alabama, said: 'There is a space in the brain where a missile could pass without doing any major damage.'"

Space in the brain, do it look like "black hole", The term "space" very imaginative (how big & what r the location???), can provide any info about it. very curios...

Thank for sharing.

how should i know.....

i don't have the CT scans or even the exact location of the entry and exit wound of the bullet....

all i know from the text is

1) entry wound somewhere at the forehead
2) pass through the lobes

both are pretty subjective....

i do know a "space" called longitudinal cerebral fissure which separates the 2 hemispheres of the brain. google on your own. size is about 5 mm wide.

Snipers always aim a certain part of the head to get an instant kill. So that's how they kill instantly. They aim the medulla oblongata which controls involuntary movement.

8 seconds if I'm not wrong

For a sniper, there target are is always medula oblongata, the part of brain that controls the spinal reflex. When that is damaged, all your system just shut down. Just like the neck twist you see some of the assassins doing in movie.

If that is not viable, the next target area is the heart. Heart stop = death due to oxygen depravation since heart pumps blood and blood carries oxygen and our cells need oxygen.

If you are using a Barretta .50 anti-material gun then all the above point is moot because a direct hit with a 0.5 calibre round will split a body in half.

How do I know? From Channel 555 of Astro.

Xuzen

In my opinion:

It is very hard for a bullet to kill people instantly.

Lets say:

1. Bullet hit your arm. Nothing harmful except pain. If the bullet pass through, even better. If the bullet calibre is big enough, your hand is a history. Die of massive bleeding. Your life expectancy, 10 minutes tops without any medical help.

2. Bullet hit your leg. Depends on which is the location. If its passed through the muscle, its good, but if its get lodge inside, necrosis, blood clot or deep vein thrombosis that will give you brain hernia, stroke) , massive tissue death, bone fracture etc could easily happen. BUT, if the bullet hit one of your femoral artery ( carries the fresh, high pressure blood from heart) , AND if you are in a standing position, you will be dead fish in 3 minutes tops. If you are lying, apply some pressure, 10 minutes for you to say goodbye if they are no medical help.

3. Lets say the bullet hit your torso/abdoment and the upper part of your groin, it really depends on what type of bullet hit you and where is the impact location. Most likely, once you are hit, you will faint out due to shock trauma. Your body register a lot of pain sensoric information to your brain, which caused it to malfunction and then shut down for restart. Most probably, you will die in massive blood lost. A hit in the heart, you are as good as dead. In this stage, you are only lost your conscious, that means, you did not die due to hit by a bullet. You die because of massive blood lost due to a bullet hit you.

Most weapon manufacturer had develop bullets that will change its trajectory once it reaches different medium. Example, a bullet fired through the air landed on your liver, once it hits your liver, a medium change happen (air to your body (liquid+solid)). The medium change altered the bullet trajectory. So, its now not only hitting your liver, the bullet could also pass through your pancreas and stop at your intestine. Three place hemorrhage (inner bleeding) instead of one.

4. The worst case come here. Bullet land on your head. First, know that a bullet hit your head does not mean you are 100% dead. It really depends where the bullet goes, but wherever it is, you stand on a very slim chance. The juice come now, a shot in the head, can only INSTANTLY kill people is a show land on your occipital lobe. Occipital lobe located between your eyes and same level with the temple (inline with your eye brow). Why INSTANTLY ? because occipital lobe controls your body involuntary movement, such as heart beating. So, hit the occipital lobe, the next very second, you are dead, cause your heart does no longer beat.

I hope part of my reply answered some of your question. Thanks.

gee....you don't know much about the human body do you...
1)the heart will beat on it's own even when you cut the nerves supplying to it....
2)occipital lobe does not control involuntary movement....the brain stem does
3)dead because heart don't beat...haha wrong again....go read sensitivity of different type of tissue when deprived of oxygen

Very appreaciate for your reply. Yes, it really help in point.....


"1)the heart will beat on it's own even when you cut the nerves supplying to it....
2)occipital lobe does not control involuntary movement....the brain stem does
3)dead because heart don't beat...haha wrong again....go read sensitivity of different type of tissue when deprived of oxygen"

Thank for your reply & appreaciate.

"dead because heart don't beat, haha wrong again...- oxygen problem"?~Yes, for certain cases...if the heart don't beat, the victim maybe can die slowly (not die instatly), the main brain(concious) may turn off first, but other parts like hand & leg still have the reponds, rite?

But for instantly die (all system connection & power of body, may shutdown in nano second), i believe the connection between each of our organ/body part connect very closely...like the brain send the signal to hand or body to dodge an attack, all this happen in a time of second or maybe least......

means, they got dead zone on our body (heart & brain Or..???)??

But die instantly ~ "instantly" ........hmmm.. i think still got a deep distance to dig & explore......

Thank for all the reply....any point of view r welcome....

A bullet won't kill you instantly unless you got shot in the head.
If you get shot on the body, means you will either bleed to death or your vital organ will shut down which will lead you to death.

Answer : A bullet does NOT kill INSTANTLY

As an Engineer, instantly to me is probably 0.02s, the fastest human reflex. But for a physicist, this could be anyway between 0.0002 to 0.000000000000000000000001 etc

Clinically a person is alive as long as the heart is still beating. A headshot would only render you brain dead ... that is said to be INCAPACITATED but still ALIVE (for another 2-4 minutes).

Here's a few things that happen when shot:

- Blood lose
- internal damage causing hemorrhage / blockage of blood flow
- damage to organs that perform vital functions

Momentum. The impact on the body is too large for a body to bear it.