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IBM Files Patent For Bullet-Dodging Bionic Armor

An anonymous reader writes with news that IBM has filed a patent for "Bionic body armor" that would protect a wearer from long-range gunfire by detecting the incoming bullets and administering small shocks to the appropriate muscles required for moving out of the way. Quoting the patent: "When a marksman (such as a sniper) is attempting to fire a projectile from a firearm, the marksman typically prefers to be as far away from the target as possible, thus giving him or her a head start for the escape after the firing. As an example, the longest reported sniper hit was from a distance of about 2500 meters, resulting in a time of flight of about 4 seconds for the projectile/bullet. Had the target been aware of the inbound projectile, avoiding it by simply walking away would have been possible." After detecting the projectile, the armor would calculate the trajectory and "stimulate the target to move in a predefined manner ... sufficient to avoid any contact with the approaching projectile."

84 of 379 comments (clear)

  1. Sign me up! by WiiVault · · Score: 5, Funny

    I get so much shit thrown at me at the daycare everyday I could really use this.

    1. Re:Sign me up! by TheGratefulNet · · Score: 4, Funny

      you type very well and you even spell well for someone in daycare. you must be in the advanced track.

      --

      --
      "It is now safe to switch off your computer."
  2. Mechanism of detection? by tenco · · Score: 4, Interesting

    I wonder how they want to detect an approaching projectile. By sound wouldn't give really much of a head start. Anyway, detecting a projectile, calculating an approximate flight path and stimulating including biomechanical lag would have to happen in a really short period of time.

    1. Re:Mechanism of detection? by DeadPixels · · Score: 2, Insightful

      Indeed. Considering that the example of the longest recorded sniper shot has a "four second" travel time, one would assume that the majority of sniper shots will take only a second or two. That means that the detection, calculation, and stimulation would have to take place in maybe a hundredth of a second to be useful.

    2. Re:Mechanism of detection? by Time_Ngler · · Score: 2, Insightful

      FTFA "The projectile may be detected in the detecting step by emitting an electromagnetic wave from a projectile detector and receiving the electromagnetic wave after the electromagnetic wave has been reflected back toward the projectile detector by the projectile."

    3. Re:Mechanism of detection? by AJWM · · Score: 3, Insightful

      Or in other words, radar.

      --
      -- Alastair
    4. Re:Mechanism of detection? by aliquis · · Score: 5, Funny

      Throw a handful of gravel against a group of military personel and watch the fun :D

    5. Re:Mechanism of detection? by ZOP · · Score: 2, Informative

      sound would not give any warning. very few modern rifles, especially sniper rifles, and most certainly those in the class that will fire past the 1km mark are subsonic.

    6. Re:Mechanism of detection? by jcr · · Score: 4, Interesting

      I wonder how they want to detect an approaching projectile.

      Millimeter-wave radar would do fine, as long as the bullet was metallic. I've read about another idea for protecting people from gunfire which was a radar-triggered airbag that would pop up if anything within a hundred feet or so was moving too fast. The air bag would be made of kevlar, and the a bullet hitting it would stop like an arrow hitting a curtain.

      -jcr

      --
      The only title of honor that a tyrant can grant is "Enemy of the State."
    7. Re:Mechanism of detection? by Joce640k · · Score: 2, Funny

      ...or use a hornet's nest to make a whole military base start jumping around uncontrollably while you just stroll in and set the charges.

      The possibility for pranking is endless.

      --
      No sig today...
    8. Re:Mechanism of detection? by Fizz753 · · Score: 2, Funny

      One well made virus and a good sound track that would be one heck of a dance party..

    9. Re:Mechanism of detection? by jcr · · Score: 3, Interesting

      The idea wasn't to wear them, but to install them along the ground where the potential target would be walking.

      -jcr

      --
      The only title of honor that a tyrant can grant is "Enemy of the State."
    10. Re:Mechanism of detection? by hasdikarlsam · · Score: 4, Insightful

      If you throw gravel at several hundred meters per second so as to get the doppler signature required for the system to act, it had better dodge your gravel.

      Of course, that won't be very efficient; the gravel would probably disintegrate.

      Hmm, maybe if you make metal gravel? And make it aerodynamic? Hmm...

    11. Re:Mechanism of detection? by TheTurtlesMoves · · Score: 3, Interesting

      This is not quite the full story. lighter rounds are affected by wind far more than heaver rounds. I know the .50 cal and .308 are typical rifles used for this sort of thing, and they have high velocity but not the highest, but run heaver bullets. Also lighter bullets loose there energy faster than heaver ones. So too light and it will be going pretty slow when it gets there. Finally there is a limit to the velocity from the physics of gases and the chemistry that makes the highest velocity in the 1500 m/s range. And thats pushing it for a rifle. IIRC the .50 cal is more like 1000 m/s.

      I have a .270 that has a muzzle velocity in the 1300m/s range (IIRC). Its a real flat trajectory out to about 700m but drops off real quick after than. We also call it a meat bruiser ;).

      --
      The Grey Goo disaster happened 3 billion years ago. This rock is covered in self replicating machines!
    12. Re:Mechanism of detection? by zer0that · · Score: 3, Funny

      Then we can name it something impressive like shrapnel.

    13. Re:Mechanism of detection? by Bender0x7D1 · · Score: 2, Informative

      Actually, your trajectory isn't flat out to 700m. It's just that the range setting on your sight/scope make it look that way.

      Assume a spherical horse of uniform density... I mean, assume the bullet has a constant velocity for the entire flight time. For easy math, we'll use a muzzle velocity of 1400m/s, a range of 700m, and call gravity at 10m/s^2. It will take the bullet 0.5 seconds to travel to the target, which means it will fall: (1/2)*(10)*(0.5)^2 or 1.25 meters. Which, if you were going for a center mass shot, would put the bullet into the ground at their feet. Unless they were really tall, and then you might hit their ankle.

      However, what the proper range setting does is raise the back side of the sight/scope, which requires the shooter to lower the back end of the weapon to get proper sight alignment and sight picture. This means the weapon is now at an angle, and the bullet will arc through the air so it rises, (in this case), 0.6 meters and then falls 0.6 meters to put it on the line-of-sight just as it arrives at the target. Since most sights/scopes don't have very long range settings, after a certain point they are no longer compensating for the large drop by having it arc higher, and all of the drop due to gravity "shows up".

      The bullet also continues to accelerate downwards as it flies so the angle of the weapon changes more dramatically at longer ranges to compensate for the overall drop. That's why it takes more "clicks" of elevation to go from 400 to 500 meters than from 100 to 200 meters.

      --
      Reading code is like reading the dictionary - you have to read half of it before you can go back and understand it.
    14. Re:Mechanism of detection? by darkmeridian · · Score: 2, Interesting

      An airbag armor system would be effectively a Whipple Shield. The penetration of a projectile is blunted by multiple layers of a material separated by a small distance. The initial layers progressively shatter the projectile into smaller parts, each of which have less penetration capability into the next layer. The concept is used in spacecraft to defend against small space debris but it has also been used in tank armor.

      --
      A NYC lawyer blogs. http://www.chuangblog.com/
  3. Jeez, I'd like to patent invisible rocket suits by Anonymous Coward · · Score: 5, Insightful

    That doesn't mean you can make it work in 10 years or less.

    I guess we should be patenting everything we can possibly think of, now. Sigh.

  4. wtf by jswigart · · Score: 5, Insightful

    Probably the lamest idea ever. Long range sniper kills of this type represent an insignificant minority of deaths, they really think people are going to wear this crap?

    The detection method sounds flaky and lame. What I would pay to see though is the other side create an 'electromagnetic' interference device that causes this armor to 'stimulate' the wearer to dive into a brick wall or something.

    1. Re:wtf by Anonymous Coward · · Score: 2, Informative

      Probably the lamest idea ever. Long range sniper kills of this type represent an insignificant minority of deaths, they really think people are going to wear this crap?

      The detection method sounds flaky and lame. What I would pay to see though is the other side create an 'electromagnetic' interference device that causes this armor to 'stimulate' the wearer to dive into a brick wall or something.

      I agree. The whole idea seems like something somebody thought up after getting really, really drunk and watching "The Tuxedo."

      Makes great book/movie material, but actually making it functional is a pipe dream at best.

    2. Re:wtf by Comatose51 · · Score: 4, Insightful

      While I agree with you that this solution is not a good fit for the problem, I just want point out that the threat of a sniper isn't in the total body count. Snipers tend to have a much greater psychological effect that's very disproportionate to the the resources employed. Soldiers, especially officers, are less likely to be out in the open if they knew there are snipers stalking them. Maybe one soldier will be killed per day or maybe even less but that's probably enough to make the unit operate less effectively the rest of the time. No one wants to be that one soldiers. More importantly, there is nothing they can really do about the threat and that makes soldiers feel helpless and drains their morale.

      --
      EvilCON - Made Famous by /.
    3. Re:wtf by cliffski · · Score: 2, Insightful

      This isn't about saving lives. It's about getting government money.
      Stuff like this sounds sexy. The generation of people in government office who hand out cash for this grew up watching sci-fi movies, and this sounds cool. They even get to try on the armour at sales pitches I reckon. Probably get to take a few souvenir photos.
      Compare that with very dry presentations saying more steel is needed to reinforce the armour on military vehicles. It sounds dull, and it doesn't get funding.

      This is nothing new. Governments make emotional decisions in knee jerk response, or decisions that have good photo-ops. The press makes things worse by reporting sound bites, or stories with good photos, and ignoring the important stuff.

      --
      DRM-free indie games for the PC and Mac: Positech Games
    4. Re:wtf by dunkelfalke · · Score: 2, Insightful

      getting really, really drunk and watching "The Tuxedo."

      Redundant. As much as I love Jackie's movies, Tuxedo can only be watched while really really drunk.

      --
      "It's such a fine line between stupid and clever" -- David St. Hubbins, Spinal Tap
    5. Re:wtf by mdarksbane · · Score: 2, Insightful

      On the steel issue.. a large part of that problem is using vehicles for purposes they were never designed for.

      A humvee is supposed to be a relatively light support vehicle that follows behind the front. It was not generally designed to get shot at - adding extra armor plates is a lot of weight that significantly changes how the vehicle handles.

      By taking our army that was designed to kick ass and take names against another army, throwing them into anti-insurgency duty where they have to deal with civilians who may or may not be setting bomb, we've gone completely outside of the expected parameters our military was designed for. Once you come to this realization, it takes a lot of time to actually design, build, and install hundreds of armor plates, assuming that your distributors even have free space on the machines to do it (since they're probably full up making armor plates for your armored vehicles). The Iraq war has been like trying to use an attack dog as a seeing eye dog - he probably capable of learning how, but he just isn't set up for it.

      The interesting thing to me is that, according to the articles I've read, the US military actively dismantled their anti-insurgency units and doctrines after Vietnam over concerns that if we had units trained to do this sort of thing, leadership would be dumb enough to try to do it again. Never underestimate the stupidity of government leaders, I guess.

  5. Super Sonic Rounds by phantomcircuit · · Score: 4, Insightful

    The vast majority of sniper rounds are super sonic. (the speed of sound is only about 1,100 ft/s)

    So the bullet will hit it's target before the sound wave warning has arrived

    1. Re:Super Sonic Rounds by joggle · · Score: 2, Insightful

      Which is why they aren't going off of sound (detailed in the patent application). They're using EM waves to reflect off of the bullet (either radar, laser, etc).

    2. Re:Super Sonic Rounds by wisty · · Score: 2, Insightful

      Oh brilliant. So all you need is a rocket built to home in on EM waves from the armor?

  6. This sounds way too good to be true.... by VinylRecords · · Score: 4, Insightful

    So the armor emits an electromagnetic signal that can detect, instantly, the movement of a bullet, can calculate the trajectory of said bullet, and somehow ensure that the user is warned enough to move out of the way of the bullet. In the example that they give, the bullet is traveling at 625 meters per second, the size of a bullet coming from a typical sniper rifle is very small. So this armor can detect, say the size of a small marble, from 2500 meters away?

    Assuming that this armor can perfect and accurately detect incoming small arms projectiles and warn the user in time, how can the armor know the ground terrain that the wearer has to physically negotiate? Say the person is standing in two feet of snow, or in sand in the desert, perhaps the person is in two feet of water, or they are walking down stairs? The armor requires the user to be an acrobat from what I can tell. And no matter what, unless the armor can fully mobilize the wearer and move them automatically, this system still leaves room for grave human error, meaning it's hardly reliable.

    And won't people figure out a way to beat the armor, or beat the system. Imagine a sniper rifle that fires a decoy bullet, that knocks the target down (as he evades the first bullet) and puts the armor wearer in a prone position on the ground, making him or her easy to target. Or perhaps a decoy bullet is shot from one barrel and the real bullet follows in a pre-calculated trajectory requiring no manual aiming for the sniper. Perhaps a bullet can be made undetectable to the electromagnetic pulse that the armor gives off. Maybe the armor can be jammed? You fire a bullet with an electromagnetic pulse destabilizer and then pick off your target when the armor fails.

    I should mention that I live like three or four miles from IBM's headquarters in the Hudson Valley, so I hope they let my friends who work there bring in their buddies (or just me) for some live fire demonstrations where we can snipe at blowup dolls wearing million dollar armor with some high tech rifles.

    1. Re:This sounds way too good to be true.... by espiesp · · Score: 2, Interesting

      Well, light is an electromagnetic signal I guess.

      If the wearer had a 360* light sensor on top of his head, and it was tuned to detect small flashes in the particular light signature of a rifle flash, something like this could work I suppose.

      While I'm pretty confident that the electronics could react fast enough for at least a 1000meter range, I'm really not sure how fast the human body responds to the electrical impulses. If the last time I touched live 110v AC is any indication that's pretty bloody fast.

    2. Re:This sounds way too good to be true.... by MartinSchou · · Score: 2, Insightful

      I'd love to hear your arguments against bulletproof vests.

      "Won't people figure out a way to beat the armor, or beat the system. Imagine a gun that fires a much heavier caliber bullet that the vest cannot stop?"

      "What if people are standing on the edge of a building. Now instead of having a bullet rip through them only to make them collapse, the impact will push them off the ledge and crash into a crowd of toddlers and other kids. Boom, splat. Instantly kills multiple people with one single bullet, just because the target was stupid enough to wear a bulletproof vest."

      Here's a hint - it's not supposed to be a forcefield. It's supposed to improve survivability not make you impervious to any and all attacks. After all - what's to prevent the shooter from just switching nuclear armaments?

  7. New sniper rifle patent by Shadow+of+Eternity · · Score: 2, Funny

    simulates projectiles in a manner which causes the aforementioned bullet-dodging armor to deliver stimulus which directs it's wearer to repeatedly and fatally strike him or herself in the genitals.

    I predict this to be added to the hague conventions in short order.

    --
    A bullet may have your name on it but splash damage is addressed "To whom it may concern."
  8. Another typical IBM patent by Anonymous Coward · · Score: 5, Insightful

    This is what happens when a company pays its employees for each successful patent, and when employees are even told to put patent applications in their yearly personal objectives, which affect their annual bonuses. You end up with employees spending a large chunk of their work week filing for patents on any random idea that enters their head, no matter how impractical, obvious, or unrelated to the company's actual research and development.

  9. Interesting... by martas · · Score: 4, Insightful

    But there are several obstacles which I can't see being solved within the next decade or two (I'm being optimistic):

    First of all, there's accuracy. You don't want your VIP actually walking to intercept the bullet.

    Second, size. If your radar is so precise as to detect a bullet even 500 yards away, it's gotta be pretty big.

    Related to this, there's energy. For an awesome radar (or anything else) like that, you'd need big-ass batteries, and/or to recharge every couple of hours. Especially in battle, this would be a no-go.

    Finally, if they claim that this is really for VIP's under high risk of an assassination attempt, and not for military/police, then the device would probably have to be invisible. I don't think Obama or Bill Gates wants to walk around with a huge thingamajig on his head (remember "Child abduction is not funny"?).

    Seriously, I don't know if it's a good idea to give somebody a patent for an idea if they haven't addressed so many key issues.

  10. Re:Yes! But will it... by supernova_hq · · Score: 3, Funny

    AC, you are the two.

  11. brilliant! by jipn4 · · Score: 2, Funny

    Since bullets typically travel faster than sound, you first get hit by the bullet, and then you get an electric shock on top of that. What fun.

    What will those IBM guys patent next?

    1. Re:brilliant! by flewp · · Score: 3, Funny

      I wasn't aware that electromagnetic radiation traveled at the speed of sound.

      --
      WWJD.... for a Klondike bar?
  12. Title... by Tubal-Cain · · Score: 4, Funny

    IBM Files Patent For Bullet-Dodging Bionic Armor

    Reading that title, I got a mental image of body armor sensing incoming bullets and dodging them by jumping off of the wearer.

  13. Re:Great - Throw 'em around during a firefight by neokushan · · Score: 3, Interesting

    I suppose the logic is this:

    Without the suit, you WILL be hit by a bullet.
    WITH the suit, you MIGHT accidentally fling yourself off a cliff or whatever.

    I'll take the latter odds over the former odds any day of the week.

    --
    +1 IDisagreeSoHeMustBeATrollOrAnAstroturferOrAShill
  14. We can Rebuild him. We have the technology. by CranberryKing · · Score: 2, Funny

    We can build the first 700 Billion dollar man. Da da-da da! Da da da da da da da da daahh

  15. Sorry...won't work by hyades1 · · Score: 4, Funny

    The sniper was Canadian, so I'm pretty sure the armour wouldn't have saved the target in the long run. The sniper was told that the guy he killed was responsible for blowing up ten skids of imported microbrewery beer. If the rifle didn't work, that sniper would have run down there with a dull, rusty spoon, cut the guy's balls off and beaten him to death with them.

    It's the Canadian Way.

    --
    I've calculated my velocity with such exquisite precision that I have no idea where I am.
  16. Radar-armor means we need... by dfsmith · · Score: 2, Funny

    ... $20M stealth bullets that have the radar signature of a mosquito. Yay!

  17. Is this a troll patent? by SupremoMan · · Score: 2, Insightful

    Or do they actually have something? Personally I don't see it working that well. A system that detects where the fire comes from and automatically returns fire with a sniper round, or an RPG, would be much bigger deterrent IMO.

  18. Re:Stimulate to move... by Z00L00K · · Score: 5, Funny

    New goal for terrorists - trigger the response in the armor making the wearer look weird and become exhausted.

    --
    If builders built buildings the way programmers wrote programs, then the first woodpecker would destroy civilization.
  19. Who would have thought... by Lavene · · Score: 3, Funny

    Shampoo is working for IBM!!

  20. Re:Stimulate to move... by jcr · · Score: 3, Insightful

    So, given the knowledge that a bullet is heading for you, you would opt to stay put instead of avoiding it, on the off chance that another hazard would present itself?

    -jcr

    --
    The only title of honor that a tyrant can grant is "Enemy of the State."
  21. Re:And how's it deal with multiple shooters? by Fumus · · Score: 4, Funny

    How about a chair?
    Will it allow the wearer to avoid being hit by a flying chair?

    If yes, then IBM might actually be able to sell it to a few people.

  22. Re:Stimulate to move... by Joce640k · · Score: 4, Insightful

    ...or right into the path of the SAME bullet.

    I mean, how accurate can this thing be? Maybe the bullet detected by the suit was going to pass two feet to the left of you. If the suit makes you jump to the left ... ooops!

    --
    No sig today...
  23. Re:Stimulate to move... by dotancohen · · Score: 5, Informative

    Right into the path of another bullet. Or a truck. Or an electric fence. etc.

    You've obviously never been hit with a 5.56 round while wearing ceramic body armour. That little 8 gram bullet is like getting punched. You don't really feel the point of impact, but you are knocked sideways anyway. And the ceramic body armour breaks after only one bullet. After that you are on your own.

    --
    It is dangerous to be right when the government is wrong.
  24. BUT... by capebretonsux · · Score: 2, Funny

    ...will it work with thrown shoes?

  25. Re:Great - Throw 'em around during a firefight by repvik · · Score: 4, Interesting

    If the wearer is about to pull the trigger on his M72 LAW when someone fires a rifle at him, do you think it's a Good Idea (TM) to jerk the person around?

    Without the suit, you WILL be hit by a bullet.
    WITH the suit, you MIGHT accidentally blow up your whole team.

  26. Re:And how's it deal with multiple shooters? by dunkelfalke · · Score: 2, Insightful

    in that case even a bulletproof vest would be irrelevant because it cannot stand repeated hits anyway.

    that's why a .22lr smg can be far more dangerous than a 9x19mm pistol.

    --
    "It's such a fine line between stupid and clever" -- David St. Hubbins, Spinal Tap
  27. Re:Stimulate to move... by c6gunner · · Score: 2, Insightful

    And the ceramic body armour breaks after only one bullet. After that you are on your own.

    Actually, the plates generally in use by NATO nations are designed to stop up to 3 hits from 7.62 rounds. Now, granted "designed to" doesn't mean they will, but if you're suggesting that the plate is useless after only one hit from a 5.56 round, then you're just plain wrong.

  28. Snatch by Xiroth · · Score: 3, Funny

    "Boris the Blade? As in Boris the Bullet-Dodger?"
    "Why do they call him the Bullet-Dodger?"
    "'Cause he dodges bullets, Avi."

  29. Re:Stimulate to move... by gomiam · · Score: 2, Insightful

    As you can see, it's not made of small discs. The reason for this is easy to see, IMO: having one big plate allows for the kynetic energy of the bullet to be spread over a large surface. I.e., instead of getting hit a lot of force in a tiny area as the bullet would do, the victim will get hit with the same force spread across a big area, which will make the pressure per square centimetre much smaller. Using small discs (I guess you mean like chainmail) would probably turn a smallish entry hole into a big one due to the kynetic energy not being spread enough. At least, it would mean having bones breaking and inner tissue rupturing.

  30. Re:Stimulate to move... by Anonymous Coward · · Score: 2, Informative

    The physics of a small projectile moving at high speed aren't particularly complicated. If you have two or three data points, you can plot the path. Better if you plug in the wind vector, but probably not necessary.

  31. So what are they saying? by rantingkitten · · Score: 3, Funny

    That I can dodge bullets? Or that when I'm ready, I won't have to?

    --
    mirrorshades radio -- darkwave, industrial, futurepop, ebm.
  32. It's just a patent. by w0mprat · · Score: 2, Interesting

    A bullet is a very very small target for any radar to detect, even with very sensitive equipment. However something moving at 1000m/s is a very distinct doppler rader signature, wich makes it MUCH easier to detect. From there this is plausible.

    It's just a patent, it doesn't represent any actual project planned and certainly is no waste of bailout/stimulous package money.

    I for one welcom such advances, as some day our troops will be wearing exoskeletons which may be able to make movements for the wearer - this is a step towards the machine revolution, where we are all anhiliated by robotic exoskeletons where the human is either dead or no longer has control... oh crap.

    --
    After logging in slashdot still does not take you back to the page you were on. It's been that way for 20 years.
  33. Re:Stimulate to move... by Joce640k · · Score: 3, Insightful

    The trig. is easy, sure, the problem is getting accurate data points on a tiny piece of metal moving at twice the speed of sound on a vector almost directly towards you.

    Luckily the patent office accepts patents for impossible things.

    --
    No sig today...
  34. Re:Stimulate to move... by beh · · Score: 3, Interesting

    Hmmm - to make the wearer escape the shot, the shocks would basically have to be admitted from one side only, to make the wearer move away from that side...

    I wonder whether it could be used differently - e.g. make the wearer move in front of a moving car (ouch); or better, aid kidnappers by sending out a signal which actually makes the wearer jump / move towards the kidnappers getaway car - it would make kidnapping so much easier, if the victim would actually help you... ;-)

    The question then would obviously be, can the armor be tricked into believing that WAS an incoming shot that would require this particular movement to evade 'the shot'...?

  35. Re:Stimulate to move... by profplump · · Score: 3, Insightful

    You're assuming the only sensors are mounted on you; that is not necessarily true. If you're traveling in a team you could easy have 6+ sensors, all but one of which would not be directly in the line of fire.

  36. Re:Stimulate to move... by tocqueville · · Score: 5, Informative

    And the ceramic body armour breaks after only one bullet. After that you are on your own.

    Actually, the plates generally in use by NATO nations are designed to stop up to 3 hits from 7.62 rounds. Now, granted "designed to" doesn't mean they will, but if you're suggesting that the plate is useless after only one hit from a 5.56 round, then you're just plain wrong.

    You're talking about the NIJ testing requirement for level 3 plates. They are required to stop 3 .308 rounds. NIJ certified level 4 plates are required to only stop 1 30-06 Armor Piercing round. This ends up having very strange effects on plate design. It is correct that a level 4 ceramic plate can shatter and become ineffective after stopping only one round.

    Other weirdness of the design of plates is the things they will and won't stop. Some level 3 plates will stop the required 3 .308 rounds, but will be penetrated by M193 5.56MM rounds. Others will stop M193 all day long but be penetrated by M855 5.56MM. Some will stop M193 but not M855, and vice versa.

    It's strange, but that's how the NIJ testing standards for level 3 and level 4 work currently. There are more than a couple of websites around that do other ad-hoc testing on armor plates and vests to try to do more extensive testing.

  37. Re:Stimulate to move... by Entropy98 · · Score: 3, Informative

    As you can see, it's not made of small discs. The reason for this is easy to see, IMO: having one big plate allows for the kynetic energy of the bullet to be spread over a large surface. I.e., instead of getting hit a lot of force in a tiny area as the bullet would do, the victim will get hit with the same force spread across a big area, which will make the pressure per square centimetre much smaller. Using small discs (I guess you mean like chainmail) would probably turn a smallish entry hole into a big one due to the kynetic energy not being spread enough. At least, it would mean having bones breaking and inner tissue rupturing.

    Well it all depends how you lay out and support the discs: Dragon Skin Body Armor
     
    --
      join my mafia family

  38. Re:Stimulate to move... by hairyfeet · · Score: 4, Informative

    He was probably thinking of Dragon Skin which IIRC the military decided was too expensive for our soldiers to wear but kicked the current armor in tests quite badly. Damned shame we can't get rid of the kickbacks and really stupid programs like trying to catch a missile with a missile then maybe we wouldn't have so many of our soldiers coming back in body bags.

    --
    ACs don't waste your time replying, your posts are never seen by me.
  39. Re:Stimulate to move... by farmerpoe · · Score: 5, Funny

    jump to the left ... ooops!

    and then a step to the right!

  40. Re:Stimulate to move... by Jeoh · · Score: 3, Insightful

    Well, if you can link the sensors together this could also be used to have people jump in front of the bullet to defend the target. Think President + Secret Service.

  41. Re:Stimulate to move... by TheTurtlesMoves · · Score: 2, Informative

    At these ranges wind modeling is mandatory. Even silly Coriolis effects matter. Remember a small perturbation is not so small after 4 seconds of flight (or even 1 second for that matter). Then there is the spin on the bullet which can affect its angle of attack that has even more effect at 3 times the speed of sound. This is not a fist order approximation problem.

    The Devil is in the details. *But* it is well understood details. And if you know the details you can predict the trajectory quite accurately. Modern tanks do this, but then they have wind, temperature and humidity sensors in order to do this. In fact they also have a bunch of sensors monitoring the barrels temperature etc too.

    --
    The Grey Goo disaster happened 3 billion years ago. This rock is covered in self replicating machines!
  42. Re:And how's it deal with multiple shooters? by VagaStorm · · Score: 2, Funny

    In other news; Bush has patented the "anti shoe move" :)

  43. Re:Stimulate to move... by dotancohen · · Score: 5, Interesting

    And the ceramic body armour breaks after only one bullet. After that you are on your own.

    Actually, the plates generally in use by NATO nations are designed to stop up to 3 hits from 7.62 rounds. Now, granted "designed to" doesn't mean they will, but if you're suggesting that the plate is useless after only one hit from a 5.56 round, then you're just plain wrong.

    Fortunately, I've never actually been hit with either a 5.56 or a 7.62 myself. But I've seen people get hit, and I'm not sure if there were multiple hits on the same plate or not. In Lebanon two years ago we couldn't even exchange our equipment for two weeks, and I wasn't keeping score of who was getting hit or where (front, back). But I can attest that no one was seriously injured by a bullet through the armour. I should probably mention that we were absorbing a nice mix of 5.56 (M16), 7.62 short (AK47) and 5.54 (AK74) rounds (and the occasional mortar or RPG!).

    --
    It is dangerous to be right when the government is wrong.
  44. Re:Stimulate to move... by tylerni7 · · Score: 2, Interesting

    My guess is anyone important enough to wear bullet dodging armor is someone important enough to fetch a large ransom.

  45. Re:Stimulate to move... by TerranFury · · Score: 2, Insightful

    A reasonable practical concern. However, it's just a patent for "futuretech," not a practical invention (yet?). Also, I don't know how accurate small phased-array radar systems are, or by how much you could improve the accuracy of your estimate of the bullet's state by incorporating a dynamic model (using, e.g., a Kalman filter). But I think that both questions need answering before this idea, even with "existing" technology, can be dismissed.

  46. Re:Stimulate to move... by PrescriptionWarning · · Score: 2, Insightful

    I would think it better to use visual HUD and/or audio cues to let the wearer know they are in the path of fire. This whole idea of the suit controlling your movements involuntarily seems like a poor idea created by someone who's probably never actually been shot at before. (note: neither have I)

  47. Re:Stimulate to move... by Antique+Geekmeister · · Score: 2, Interesting

    In _Iraq_? Darned straight they'll wear it on convoy duty or for presidential guard duty, if it works.

    It's also _completely_ useless against long-range sniper rounds, since those exceed the speed of sound quite easily. I have a reference page for the US M99 open right now. At 1000 yards, which is well within the capabilities of a well-trained sniper, the velocity of a round is 1500 fps. That's roughly 40% faster than the speed of sound.

    And simply peppering an area with remote gunfire causing US troops to dance like Jennifer Beals in Flashdance? Put a soundtrack of 'What A Feeling' on, and I'd pay to see it.

  48. Re:Stimulate to move... by Smauler · · Score: 5, Insightful

    Personally I find it hilarious that you are actually suggesting we use a highly sophisticated machine to control a suit which turns the person inside into a meat shield to protect someone else. Surely by the time we've actually invented this amazing device we can figure out something else to put between the speeding bullet and the president rather than another fucking human being! :).

  49. Re:Great - Throw 'em around during a firefight by Dr.+Hellno · · Score: 2, Funny

    think president on inauguration day or pope

    In a world... where Mecha Saddam and his Robo-Muslims threaten your mom... and apple pie... and FREEDOM...
    Only two men have the magic dancing armor that can save the day.

    Bionic Barack
    and
    Powerpope
    in:

    "Church and State 2: Best Friends Forevarrr!"

  50. Re:Stimulate to move... by eonlabs · · Score: 3, Funny

    I can see the headlines now:
    IBM sued when bodyarmor snaps wearer's spine.
    Bodyarmor electrocutes soldier in field
    New body armor provides new technique for weightloss
    Can't touch this, hammer time

    --
    I wouldn't consider the mad hatter mad. Just reality impaired. He sure can make a mean cup of tea.
  51. Re:Stimulate to move... by geekboy642 · · Score: 2, Informative

    Electronic reflexes are faster than yours. Electronic senses are faster than yours. I would absolutely beg for this kind of armor if I was in a situation where I might take a sniper bullet. There's absolutely no way I could see the muzzle flash, recognize it, judge the bullet, and move out of the path fast enough.
    And if you take your idea of an audio/visual cue, you merely add the human reflex time to the machine's..."wtf is that beeping noise?" *arghI'mdead*

    --
    Just another "DOJ fascist authoritarian totalitarian bootlicker" -- Zeio
  52. Re:Stimulate to move... by dotancohen · · Score: 2, Interesting

    Of course, now they have dragon skin armor:

    Can stop a grenade safely, and multiple hits.

    Stopping grenade shrapnel has never been a problem. The earliest soft body armour would stop grenade shrapnel, and not bullets.

    --
    It is dangerous to be right when the government is wrong.
  53. Re:Stimulate to move... by Dun+Malg · · Score: 4, Informative

    I would think it better to use visual HUD and/or audio cues to let the wearer know they are in the path of fire. This whole idea of the suit controlling your movements involuntarily seems like a poor idea created by someone who's probably never actually been shot at before. (note: neither have I)

    Actually, it sounds like the creators have been shot at before, or had access to people who have. When you first notice incoming fire, your brain has an almost comical "WTF?" moment that lasts at least a half second. If you're well trained and/or have been shot at before, your "lizard brain" is already screaming at your muscles to get moving. If not, you might stand there for as long as 3 or 4 seconds before you can get your thinker running and get moving. A flashing red light on a HUD indicating "incoming fire" would probably be just enough warning for you to realize you've been hit by enemy fire, so it's not a complete surprise. I'd have loved something like this suit when I was in Afghanistan.

    --
    If a job's not worth doing, it's not worth doing right.
  54. Re:Stimulate to move... by dotancohen · · Score: 2, Informative

    Sorry about that. We'll try to get those US taxpayer dollars to you on the first of the month from now on.

    US taxpayer dollars do not pay for locally-developed and produced technology, only technology imported from the US. If I'm not mistaken, the US _imports_ personnel-protection technology from my nation. In fact, it's the fact that _I_ test it in Lebanon that US soldiers can wear it and feel [relatively] safe.

    --
    It is dangerous to be right when the government is wrong.
  55. Re:Stimulate to move... by Antique+Geekmeister · · Score: 2, Informative

    OK, let's go down the list of possible sources of information, shall we?

    Light? No good, the optical field is very confusing, with dust, buildings, etc. There's too much optical noise.

    Radar? Oh, yes, that works well to track a small, high velocity object in a similarly cluttered field. Moreover, the radars have to be so scattered that they are also expensive to deploy.

    Sound? Several of us have already mentioned the problems with that.

  56. Re:Stimulate to move... by Dun+Malg · · Score: 3, Interesting

    Bullshit, the Dragon Skin guys cooked their test data, they are being prosecuted; their armor is NOT better,

    Read your own link, fucktard. No one is being "prosecuted", and the question of whether the DragonSkin product is better or not is still up in the air. I have seen about a 50:50 split on reports that one side or the other skewed the test procedure to make one or the other come out on top. I wore the current Army OTV off and on for 2 years and have seen it both fail and succeed first hand.

    The live fire test guys who evaluate this stuff take their jobs very seriously, they didn't buy that crap armor for good reason (performance not price).

    Yeah, no one would ever manipulate a test to make the product chosen look better. I've spent too many years using the end result of DoD procurement and testing procedure to have absolute faith in it. Sure, the guys conducting the test might be serious straight shooters, but what do you know about the pentagon political hacks who drew up the test procedure? Was it tailored to subtly exploit a particular weakness of the Pinnacle product? Pinnacle seems to think so.

    Not everything is a conspiracy by the corrupt gubment.

    No, but DoD procurement is rife with idiots who make poor decisions, and then go to the ends of the earth to back up those poor decisions, because to admit error is to admit incompetence, and promotions get harder when you've admitted incompetence. The Pentagon is a political rat's nest, full of infighting, backstabbing, and deal-cutting.

    --
    If a job's not worth doing, it's not worth doing right.
  57. Re:Stimulate to move... by IanCal · · Score: 2, Insightful

    I was trying to point out that going faster than sound is only a fundamental issue for sound based tracking. Fast & small objects are *hard* to track with other methods, not impossible.

    You claimed it was _completely_ useless (emphasis yours) for situations like the one they quoted. The idea that they hadn't considered that the bullets may be moving faster than sound was the one I was responding to.

  58. Re:Stimulate to move... by Goaway · · Score: 2, Insightful

    Oh, yes, that works well to track a small, high velocity object in a similarly cluttered field.

    It is exactly the high velocity that makes it so easy to track. It would stand out like a sore thumb on doppler radar. And since you only care about bullets aimed at you, it will also be almost stationary in the radar's field of view.

  59. Re:Stimulate to move... by fractoid · · Score: 2, Interesting

    OK, how about another one: A distributed network of microphones linked by radio.

    I believe I've read about similar things being developed/trialled for deployment in Iraq, precisely for the purpose of pinpointing sniper shots. They just airdrop a bajillion little gizmoes that are basically a GPS, a radio and a mic. They detect a gunshot, and squeal their position and the exact timestamp of the shot. Any radio listening can triangulate gunshots much faster than a bullet (or the sound front) can move.

    --
    Rampant carbon sequestration destroyed the Dinosaurs' tropical paradise. I'm here to help repair the damage.