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Military Helmet Design Contributes To Brain Damage
BuzzSkyline writes "Improvements in helmets have helped modern soldiers survive bullets and blasts that would have killed them in past wars. But increasing numbers of soldiers are suffering long lasting brain damage from explosions, partly as a result of what appears to be a flaw in helmet designs. Although the blast itself may not accelerate the brain inside a soldier's head enough to cause injury, shockwaves that make it through the space between a helmet and a soldier's head can cause the skull to flex, leading to ripples in the skull that can create damaging pressures in the brain. Simulations that relied on 'code originally designed to simulate how a detonated weapon rattles a building or tank' could lead to new helmets that reduce the traumatic brain injuries that many soldiers suffer as a result of improvised explosive devices and other moderate-sized blasts. The research is due to be published in Physical Review Letters, but a pre-print of the entire article is currently available on the Physics ArXiv."
Actually, the gloves DO cause brain damage. It's nearly impossible to knock someone our bare handed with a blow to the temple, but easy as hell with gloves. The glove protects the hands, not the face. Notice that in college or olympic boxing they wear protective gear on their heads?
Free Martian Whores!
IED = improvised explosive device. As opposed to an explosive device made on a production line somewhere. The military loves acronyms even more than the rest of government, so I doubt there's any Orwellian reason for the name.
From TFA: "The helmet acts as a windscoop, so the pressure between the skull and helmet is larger than the blast wave by itself,.."
With a direct gunshot to the head the head saves their lives, but with indirect shockwaves (i.e. an IED going off a few meters away) the helmets have been shown to increase the likelihood of a TBI.
I judt got a nre Kinesis keybiartf so please excusr ant egregiou typos.
Actually, there's some very good reasons for calling them IEDs. IED stands for Improvised Explosive Device, of course. What this means is that the explosive device in question is not standard. This matters when it comes to disarming/making them safe.
If a EOD guy comes across an unexploded MK82, he knows precisely how to disarm it - it's standardized. Same deal with most land mines*, claymore devices, unmodified artillery shells**, and the rest of the world's standard military munitions. We even have books on foreign country's stuff, including Russian and old USSR weapons.
Each IED, even if from the same maker, is far more unique, presenting unique challanges when it comes to disarming them.
Oh, and being designated as a land mine doesn't mean a 'large enough' payload, it means it's buried in the ground with an appropriate sensor/detonator to explode when something's over it. Most are pressure sensitive, some anti-vehicle types have magnetic detonators.
Bombs are generally assumed to be dropped out of planes, but then I'm Air Force.
*Though booby-trapping can be an issue with these.
**Many are converted into IEDs via non-conventional detonation systems in Iraq/Afghanistan.
I don't read AC A human right
I wonder if this may be the cause of "Gulf War Syndrome" we heard a lot about a few years back...
How would a shock to the head cause auto-immune diseases, which is what Gulf War Syndrome is?
http://www.autoimmune.com/GWSGen.html
"Gulf War Syndrome, or GWS, is the term which has been applied to the multi-symptom rheumatic disorder experienced by many veterans of the 1990-1991 Persian Gulf war. A similar disorder appeared in 1990-1991-era personnel who were never deployed to the Persian Gulf theater of operations and also in other military personnel, including participants in the Anthrax Vaccine Immunization Program, or AVIP, which was inaugurated in 1997. No data has ever suggested that the disorder experienced by the deployed 1990-1991 soldiers is different from the disorder experienced by the other groups of patients, but the other cases have not been considered to be cases of GWS.
Squalene was found by the U.S. Food and Drug Administration in five lots of the AVIP anthrax vaccine. The discovery of serum anti-squalene antibodies and the development of a test to detect these antibodies has made it possible to see that links appear to exist between the contaminated AVIP vaccine lots, the illness experienced by post-1997 vaccine recipients, the illness experienced by non-deployed 1990-1991-era patients, and the illness in deployed 1990-1991-era patients that has been referred to as GWS."
If you have something that you dont want anyone to know, maybe you shouldnt be doing it in the first place -Eric Schmidt
They also make it possible to hit the head. Without gloves you'd break your hands if you stood there punching at somebody's head. In the old days of bare-knuckle boxing most of the blows were to the body. There were a lot of bruised ribs but hardly anybody died.
No sig today...
I think a lot of this stems from the way the current helmet is fitted to the soldiers head. (Yes, I am a soldier, 18th Airborne Corp, Ft Bragg, NC)
1 - The older Kevlar helmet was fitted to your head with a "sweat band" strapped to the inside of the helmet, which could be adjusted to fit your head exactly.
2 - The newer ACH (Advanced Combat Helmet) is fitted with velcro backed pads which attach inside the helmet.
Let me say now that it is *very* common for CIF (where you get issued your equipment) to be out of your size and give you the next size up. With the older Kevlar (case 1 above) you could still fit the sweat band to fit your head, securing the helmet. With the ACH (case 2 above) if the helmet is too big, the pads will be loose on your head, and the helmet will rattle around on your head when concussions occur nearby.
The crew is not going to be exposed to the uranium unless the armor gets penetrated. If the armor is penetrated the crew has bigger problems.
Even then, it is not a big risk it will be penetrated, Of almost 5,000 M1 tanks built, only 10-12 tanks lost due to enemy action have had their armor penetrated. Only 7 soldiers have died in combat in an M1, 4 of those drowned when their tank collapsed a bridge.
The crew members smoking or chewing tobacco is far greater cancer risk than the tank armor.