How do bulletproof vests work? | James May's Q&A (Ep 25) | Head Squeeze

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  • Опубликовано: 3 окт 2024
  • How does a bulletproof vest work? James May does some troubleshooting.
    How a bullet works: www.ehow.com/ho...
    How a bulletproof vest is made and works: inventors.about...
    Ned Kelly: www.nedkellyswo...
    Archduke Ferdinand: www.firstworldw...
    / headsqueezetv
    www.youtube.com...
    James May's Q&A: With his own unique spin, James May asks and answers the oddball questions we've all wondered about from 'What Exactly Is One Second?' to 'Is Invisibility Possible?'

Комментарии • 568

  • @EmperorSigismund
    @EmperorSigismund 8 лет назад +290

    Here at Brit labs we fire the whole bullet. That's 65% more bullet per bullet!

    • @geoffist
      @geoffist 8 лет назад +4

      I was gonna say... but no need now!

    • @markreccles5290
      @markreccles5290 7 лет назад +3

      The cartridge is the brass bit. The whole thing is called a round.

    • @DeputatKaktus
      @DeputatKaktus 7 лет назад +3

      I see what you did there. :-)
      Just pick up a rifle and follow the yellow line. You'll know when the tests starts.

    • @rdgrdmedflde4710
      @rdgrdmedflde4710 2 года назад

      You beat me to it... 5 years ago! I was thinking exactly the same thing, then I found this comment.

    • @EEE-1409
      @EEE-1409 4 месяца назад +1

      APERTURE SCIENCE!! YES!!

  • @maciejm6822
    @maciejm6822 9 лет назад +116

    Interresting bullet shot with shell :-P

  • @Ziggerath
    @Ziggerath 2 года назад +60

    This was more historical than how the vests actually work

  • @danieln.3593
    @danieln.3593 2 года назад +9

    I love James May explaining just about anything

  • @SocialDem86
    @SocialDem86 8 лет назад +332

    Brits show a bullet flying out of a gun with the casing still attached. Lol

    • @johnbriny1126
      @johnbriny1126 4 года назад +23

      SocialdDem yanks sing pumped up kicks while holding their ak

    • @user-hj7sx3nv8p
      @user-hj7sx3nv8p 4 года назад +7

      It also showed the cartoon figure using a break action shotgun as a pump, haha

    • @mrtalent2414
      @mrtalent2414 Год назад

      Yeah sorry, our culture isn’t learning how bullets work the hard way in elementary school like you guys , easy mistake to make

    • @clydemactavish3457
      @clydemactavish3457 Год назад

      and that little extending punching arm. Like don't they know how ammo works?!?

    • @triplus198
      @triplus198 9 месяцев назад

      ​@@johnbriny1126ar15 has left the chat m16a1 has left the chat m4a1

  • @PCRedman
    @PCRedman 10 лет назад +72

    You lost me when you had the bullet and casing came out of the gun

  • @Gilroben
    @Gilroben 11 лет назад +10

    It would be nice to see the bullet proof vest working on a info-graphic or diagram. I didn't quite understand how the fabric increase the area of impact.

  • @trppmdm
    @trppmdm 10 лет назад +73

    I don't want to sound like I know everything on guns, but come on, at 1:20 the bullet is shown with the case!!!

    • @dicommandore
      @dicommandore 10 лет назад +25

      And has a boxingglove inside it! It's outrageous! :7

    • @MuhammadKharismawan
      @MuhammadKharismawan 10 лет назад

      dicommandore lol!

    • @OtisWild
      @OtisWild 10 лет назад +1

      LOL yeah that's not how they work!

    • @NarwahlGaming
      @NarwahlGaming 8 лет назад

      +trppmdm Was it 'Roger Rabbit' that showed a bullet fired then pull out a tomahawk?
      It's been a while. :D

    • @trppmdm
      @trppmdm 8 лет назад

      mahnarch Wild E Coyote? Haven't watched cartoons in quite a long time :\

  • @SimonZerafa
    @SimonZerafa 11 лет назад +3

    Kevlar (TM) is a DuPont trademark and there are other similar materials around. The generic is Poly-paraphenylene terephthalamide :-)
    Remember that the Fiber will stop or trap a small arms round but you still need a trauma pack behind that to absorb the energy. Will you may not die from the actual round entering your body the kinetic energy can also do damage can cause internal bleeding and tearing of organs.

  • @eisaatana96
    @eisaatana96 8 лет назад +21

    "Leather armour of Roman soldiers"? Roman soldiers had chain and scale armour (known as lorica hamata and lorica squamata respectively) at the time of the Republic and, by the time of the Empire, Roman legionaries were using armour made of segmented iron plates called lorica segmentata. So the Romans had much more advanced armours than you think. They never used "leather armour". That is just a Hollywood fantasy.
    And Knights weren't the only people who had armour in the medieval period.

    • @jamesarvanitakis665
      @jamesarvanitakis665 8 лет назад +3

      Swiss Army Knife they first used leather then moved on to medal

    • @nuniko117
      @nuniko117 7 лет назад

      also gambeson was used far more then leather at least that is what i was told by shadiversity and other channels of the like

    • @MrStn
      @MrStn 7 лет назад

      They have found bronze plate armour dating back to the fifteenth century BC. This notion that plate armour wasn't used before the Middle ages is simply false.

  • @TheTrueMop
    @TheTrueMop 11 лет назад +14

    A quick question for James:
    How close are we to robotic augmentations?

    • @mikewong2440
      @mikewong2440 3 года назад

      They're here, depending on what you define it as.

  • @tiberiu_nicolae
    @tiberiu_nicolae 8 лет назад +77

    1:18 animation is blatantly wrong. The casing stays in the chamber, only the bullet travels in the barrel.

    • @robertcattarius6906
      @robertcattarius6906 8 лет назад +5

      +Ortsa You made my week.

    • @KoeSeer
      @KoeSeer 8 лет назад +7

      +Ortsa and the exploding wall revealing a matador deflecting bullet with red sheet.

    • @siljelovemartin1
      @siljelovemartin1 8 лет назад +1

      +Tiberiu Nicolae You sir, fail.

    • @AmeshaSpentaArmaiti
      @AmeshaSpentaArmaiti 8 лет назад +4

      +Tiberiu Nicolae that's a new model, it gets 75% more bullet per shot.

    • @rossjbishop
      @rossjbishop 8 лет назад +1

      Well you got that wrong because the casing gets ejected from the chamber when the shot is fired :)

  • @bminus911
    @bminus911 11 лет назад +2

    There has been interesting research into the use of non-Newtonian liquids to create body armour. When such a liquid is compressed or impacted it hardens, the greater the impact, the harder it gets. If you filled up a swimming pool with custard you would be able to run across it without sinking because of the impact of your feet on its surface.

  • @turbo1431
    @turbo1431 11 лет назад

    I already know how bulletproof vests work, yet I will still watch this just to see James May.

  • @trecool212
    @trecool212 11 лет назад

    The United States military has used ceramic plates contained in a kevlar vest for a while now (since at least 1996, according to some quick research). Most commonly aluminum oxide, boron carbide, and silicon carbide. Correct me if I'm wrong, but I don't think that non-newtonian fluids have ever been a component of body armor historically, but once again some quick research tells me that body armor incorporating such fluids is in development.

  • @g0rg0n
    @g0rg0n 11 лет назад +1

    Why does the "gun" fire the entire casing, and not just the projectile. Id expect more from these guys.
    My world, shattered.
    *sobs in a corner*

  • @MartinBenek198
    @MartinBenek198 11 лет назад +1

    1:23 - That not just a bullet, its bullet with its whole casing. Only bullet flyes out, casing get ejected sideways from the gun.

  • @AtomicHamburger1
    @AtomicHamburger1 11 лет назад +1

    Also overheating wasn't the main issue but fatigue from fighting. A cloth cloak with your coat of arms on it could stop the sun from heating up the armor (hence why the Knights Templar wore their famous cloaks over their chainmail).

  • @nickrich56
    @nickrich56 11 лет назад

    Dont need knowledge Badger if James continues with the history lessons. Well done HdSqz ...

  • @stevenbudaya2140
    @stevenbudaya2140 11 лет назад

    because thats the way it is, the way it will be and it is the way that wont change anytime soon, just because you cant handle ads doesnt mean people wants them to disappear and then youtube would be a pay per view site with monthly subscription

  • @Vyppaaa11
    @Vyppaaa11 10 лет назад +11

    Magnum rounds were originally designed for large game hunting

    • @jasonarmstrong5750
      @jasonarmstrong5750 10 лет назад +1

      sounds reasonable.

    • @Vyppaaa11
      @Vyppaaa11 10 лет назад +5

      Jason Armstrong yep, they were simply normal rounds packed with double or triple the normal powder load

    • @halo3odst
      @halo3odst 8 лет назад

      +Vyppaaa11 * in a longer casing, meant for use in a gun that was reinforced in a way that would let it be able to use both rounds. ie a .44 magnum revolver can shoot both .44 magnum and .44 special, however a .44 special revolver can not fire the magnum round.

    • @Vyppaaa11
      @Vyppaaa11 8 лет назад

      halo3odst "originally designed" but thanks for adding nothing to a two year old comment

    • @halo3odst
      @halo3odst 8 лет назад

      *****
      what do you mean "originally designed" ? put it in context.

  • @nomenclator4339
    @nomenclator4339 9 лет назад +10

    lol that arms race

  • @greenfire61
    @greenfire61 11 лет назад +1

    James May is the perfect one for these videos. Hamster would be off the walls and Clarkson would make some awkward joke about Germans being really good at shooting people.

  • @UnEspion
    @UnEspion 11 лет назад +3

    "Plus, we fire the whole bullet. That's 65% more bullet - per bullet."
    I'm guessing Cave Johnson was involved somehow in the animation of this video.

  • @FalcoGer
    @FalcoGer 8 лет назад +2

    Ceramic armor works by using the bullets energy to shatter the ceramic instead of punching a hole through your body. Of course the ceramic is compromised after the first shot. So if a large enough piece survives you can still hope a second bullet lands there. Of course you can use hardened materials and armor plates to shatter the bullet and distribute the force. In any case, getting shot is going to leave some hurts.

  • @mguatimosim
    @mguatimosim 11 лет назад +1

    James, what are the most impressive technological human augumentation implants, prosthetics or exoskeletons already (or soon to be) available?

  • @popstars4444
    @popstars4444 8 лет назад +9

    like loads of people have commented.. bullets leave the shell in the gun or eject it... not fly with it like the drawing :-/

    • @Smoos54
      @Smoos54 7 лет назад

      Jamie White eject it, it never stays in the gun

    • @jonathanshaltz7750
      @jonathanshaltz7750 5 лет назад +1

      @@Smoos54 not to be that guy, but revolvers don't eject their brass.

    • @Smoos54
      @Smoos54 5 лет назад

      @@jonathanshaltz7750 there's no problem you're just stating a fact and you are right.

  • @wongcayven9893
    @wongcayven9893 3 года назад +7

    You just needed Netherite Armor with projectile protection

  • @joshuar.1099
    @joshuar.1099 10 лет назад

    There is Google and Bing now you know? It's a much faster explanation than with Capt. Slow... But the history was a nice touch :)

  • @lutascheier
    @lutascheier 10 лет назад +1

    Well fair enough but there's lots more to it. There are fabric vests with multible layers of (if I recall correctly) fiber glass cloths and I'm sure some will have carbon fibers. There's also a kind of dragon skin vests with scales. These are the modern approaches, But military armor vests still have to have heavy plates protecting the vital body organs against high power rifles. Howerver 15kg is of course the max.

  • @SpaceMonkey9288
    @SpaceMonkey9288 11 лет назад +5

    "Having the same weight that medievil knights had to cart around"
    Well atleast you won't die as often =P

  • @RovingARock
    @RovingARock 11 лет назад

    I had never heard about the gangster vests - fascinating!

  • @lukeyboyf1
    @lukeyboyf1 11 лет назад

    Because a high rpm engine puts lots of strain on the compenents, they get hot, have to cope with very high g force and also valve timing becomes a problem, thus the engine will fair quickly.
    However by just increasing the size of the engine by adding more cylinders no more strain is put on each piston and you still get the increase in power.

  • @cod4boy45
    @cod4boy45 11 лет назад

    I will add the audio from James May's head squeeze videos to my sleep soundtrack.

  • @zolifer1
    @zolifer1 11 лет назад

    Subscribed just for james

  • @motanelustelistu
    @motanelustelistu 10 лет назад

    This is quite tricky actually.James is right about the pressure,of the force/surface as the bullet's advantage to pierce concrete walls and bullets are stopped by carbon fiber and kevlar layers but in the same time going through some cheap solid body armor.Now if you apply the same thing to the knife,it means it would be stopped by the textile vest,when it actually isn't.So how you choose between a vest that can stop bullet but not knifes (textiles) or knifes but not bullets (solid) ones ?
    I guess its the type of fight you're going too.
    P.S. Do you know,guys,that millitary head cap its actualyl useless and can be punctured by the lightest handgun (despite the fact its round and you would think bullets will deflect of it) and that is there only for moral support ?

    • @ollie3x10_8
      @ollie3x10_8 10 лет назад +1

      They protect from debris and shrapnel

  • @RoobieD
    @RoobieD 11 лет назад

    It also had a springy boxing glove thing coming out of the front hatch

  • @DreamerforeverMetal
    @DreamerforeverMetal 11 лет назад

    This didn't squeeze my head... Just filled it with more questions, left unanswered...

  • @BrettsGarage
    @BrettsGarage 11 лет назад

    That was a pleasant video. I thoroughly enjoyed it.

  • @Ivo--
    @Ivo-- 11 лет назад +1

    Arrows possibly but not swords since they don't protect well against cutting.
    There are some vests that incorporate a modern version of chain mail though which protect against stabbing and cutting.

  • @gabrielswan1788
    @gabrielswan1788 5 лет назад

    A round shot with the casing still attached? Well done

  • @piccolojunior4766
    @piccolojunior4766 8 лет назад +1

    I love learning things that are partially to wholly inaccurate!

  • @bobzdar9442
    @bobzdar9442 8 лет назад +28

    it does not explain how it works.

    • @mini696
      @mini696 8 лет назад +4

      Yes it did.

  • @Flaktiger
    @Flaktiger 9 лет назад +6

    "The notorious magnum round"
    what?

  • @SexyMan590
    @SexyMan590 2 года назад +2

    quick explanation of how bulletproof vests work!:
    they prevent bleeding if you wear them and get shot, you will still feel the pain.
    some bullets are strong enough to penetrate the bulletproof vests like the ap rounds

  • @eurohim
    @eurohim 11 лет назад

    3:34 Bullets don't bounce off of ceramic plates. The plates are actually pretty fragile. They break up the bullet and then the Kevlar is able to absorb the bullet fragments.

  • @N.P.1892
    @N.P.1892 11 лет назад

    The weight of an object can change depending on where you are in the universe, the mass doesn't. And Newton is used for weight, as weight is just gravitational force.

  • @anonamoose8853
    @anonamoose8853 7 лет назад +1

    Oh god talking physics when the cartridge and bullet both get fired

  • @dozentcare
    @dozentcare 10 лет назад +8

    i still don't know how it works

  • @SEThatered
    @SEThatered 11 лет назад

    Newton is for force.
    Weight is just mass of the object on earth, which by our measuring standards corresponds with the mass of the object.
    So as long as we don't leave the earth's gravitational field at sea level, weight and mass can be used interchangeably.

  • @Wolf-ny6bz
    @Wolf-ny6bz 5 лет назад

    James! Yeah! nice to see you!

  • @towerfatality
    @towerfatality 11 лет назад +1

    The man who shot Ferdinand was NOT a Serbian NATIONALIST, he declared himself a Yugoslav.

  • @thefezer456676
    @thefezer456676 4 года назад +1

    Why is that bullet flying out of a gun with the casing still attached lol.

  • @SweetandFitting
    @SweetandFitting 11 лет назад

    I wasn't aware of these things, thanks.

  • @ChucksSEADnDEAD
    @ChucksSEADnDEAD 11 лет назад

    1. It increases the surface area in which the bullet has it's effect on.
    2. It deforms the bullet, further increasing it's own area and reducing it's perforating capabilities.
    3. It is paired up with hard plates to stop rifle rounds.
    All of this was described in the video. They're sorry they didn't have pretty 3D graphics explaining it. Actually, they're probably not.

  • @Jesusandbible
    @Jesusandbible 6 лет назад

    interesting. Wish you had said if a standard UK arm fabric vest will stop a lower velocity bullet on its own and uses the layering system.

    • @mikewong2440
      @mikewong2440 3 года назад

      All soft vests are made up of a few dozen layers of armor fabric. These are generally good enough for bullets piercing through cover, ricocheting, or explosive fragmentation and shrapnel.
      They may also reduce injury from penetrating impacts.

  • @IlliterateIdiot
    @IlliterateIdiot 10 лет назад +2

    I always wait for the day the head squeeze man pops!!

  • @iota-09
    @iota-09 11 лет назад

    one is "weapon of future"(don't the english/us version of it),but it still doesn't quite cover eveything... i don't know,anyway the host of it (Richard Machowicz) has worked with some of this stuff,so check it out.

  • @brandonpayne7240
    @brandonpayne7240 5 лет назад

    I love the Gyrojet revolver at 1:17

  • @DoctorFragnito
    @DoctorFragnito 11 лет назад

    Kevlar is the soft armour he was talking about.
    It's good for stopping fragmentation and 9mm rounds but pathetic against anything else.
    This is why soldiers use ceramic plates with their soft armour since they can easily withstand multiple shots from a 7.62 NATO round.

  • @Bladmapples
    @Bladmapples 11 лет назад

    My question; Can you do a one off special on how Sim Oakley (Simmy from Man Lab) works? The world needs to know!

  • @nooplizzz
    @nooplizzz 11 лет назад +1

    This video didn't REALLY explain HOW bulletproof vests WORK... It was more of a history lesson on how armor got heavy and had to be made lighter, and that it now has become heavier again :/

  • @imbored742
    @imbored742 11 лет назад

    Except for the problems. It's not actually that light, it weighs about 10lbs, with vests offering comparable protection (such as Dynema plates) being as light as 3 pounds per plate, or 6 pounds for both front and back protection. Furthermore, there have been problems with the adhesive used in assembly failing at higher temperatures (like the ones in the sandbox) causing the vest's protection to fail.

  • @bettigyv
    @bettigyv 11 лет назад

    yeah that for sure but its really a vague an general explanation!

  • @jayrq2o1
    @jayrq2o1 11 лет назад

    From the question's point of view, it asks if a poison expires. This response doesn't really answer the question, unless you're trying to debate the difference between "less lethal" and "more lethal." Curing it doesn't stop the poison from being lethal, or what I should say, it alone is still going to kill you. Anti-toxins just prevent that from happening. Also, the venom you're referring to is a cytotoxin, specifically a cardiotoxin, but even that has a half life and can degrade over time.

  • @DoctorFragnito
    @DoctorFragnito 11 лет назад

    Kevlar is the soft armour he was talking about.
    It's good for stopping fragmentation and 9mm rounds but pathetic against anything else.
    This is why soldiers use ceramic plates with their soft armour since they can easily withstand multiple shots from a 7.62 NATO round.

  • @Nimbus3690
    @Nimbus3690 11 лет назад

    Portal 2 reference is a win in my book.

  • @SweetandFitting
    @SweetandFitting 11 лет назад +3

    I'm surprised you didn't touch on Dragon Skin body armour James... A very light, practical and flexible alternative to the current systems our military uses.

  • @ChucksSEADnDEAD
    @ChucksSEADnDEAD 11 лет назад

    No, because rifle rounds existed for a long time. Soft body armor was always meant to stop handgun rounds. Hard steel plates aren't nearly as heavy and bulky as medieval armor. Hard ceramic plates are even lighter.

  • @Highjak86
    @Highjak86 11 лет назад +1

    Oh jesus, it would have been nice if the bullet animation was even close to accurately portraying a real bullet.

  • @Ankitdravani
    @Ankitdravani 11 лет назад

    Technically if some perishable items expires it looses its effect of what its suppose to do and not necessarily become poisonous. So in my opinion poison when expires would become less poisonous.

  • @Shoyrou
    @Shoyrou 8 лет назад +6

    The bullet drawing leaving the gun was completely wrong. For many years I believed the bullet exited the gun with the casing attached. Only when I actually learned how a gun works (around 12 years old) did I understand it didn't.
    Just saying it might skew people's intuition.

    • @VintageProjectDE
      @VintageProjectDE 8 лет назад

      +André Pereira Same here.
      I always wonder what makes those animators think the whole cartridge is going to be ejected from the barrel instead of just the bullet.

    • @NarwahlGaming
      @NarwahlGaming 8 лет назад +2

      +Thilo Niewoehner Most of them are hippies who depend on government for everything. These are the same hippies who run for office and try to pass gun laws when they have no idea how they work.

    • @hmhmhm4321
      @hmhmhm4321 8 лет назад +6

      You`re complaining about the bullet being attached to the casing but doesn`t mention the damn boxing glove coming out of it...

    • @nopenoperson9118
      @nopenoperson9118 8 лет назад +1

      +FuriousQuid Because nobody actually thinks that rounds contain spring-loaded boxing gloves, you ignoramus.

    • @MarkyDav
      @MarkyDav 8 лет назад

      +André Pereira Or maybe that doesn't matter to the video.
      Sure it might annoy gun nerds, but it's just a quick animation to illustrate a point.

  • @UwillCmeWin
    @UwillCmeWin 10 лет назад +9

    I know cartoon are not suppose to be realistic but somehow it really annoys me how everytime they show a bullet being fired, the bullet is still attached to his case.

  • @imbored742
    @imbored742 11 лет назад

    F1 cars have quite small engines, like you describe. But they need to be completely rebuilt after every race. Auto makers do not produce production cars with these engines as the frequency and cost of maintenance would be too high.

  • @autoairsteer
    @autoairsteer 11 лет назад

    1.01 pump action over & under do Purdy make them?

  • @modslot
    @modslot 11 лет назад

    Q. How many G's did the luner landers pull when they left the moon?
    Q. The moon has 1/6 the gravity of earth so, at = acceleration on the moon and earth would the G force be the same or 1/6 that of earth?
    That is if we actually went there?

  • @eurohim
    @eurohim 11 лет назад

    1:25 Why is the bullet shooting out the casing as well?

  • @zhemin
    @zhemin 11 лет назад

    Disperse single point of energy over a large surface area?

  • @onarass6321
    @onarass6321 8 лет назад

    Ned Kelly = Legend

  • @C_Mike
    @C_Mike 11 лет назад

    Because it wouldn't dissipate the energy of the bullet enough, its like the difference between getting hit with a large heavy skillet, and a sack of flour, or something softer

  • @Undecided_
    @Undecided_ 11 лет назад

    depends on some, wine tastes better when aged, so some poisons are more effected the older they are, but some have chemicals or something that eventually wear off.

  • @wonseok_song
    @wonseok_song 8 лет назад

    Ancient Korean made bullet proof vest with 13 layers of hemp cloth.
    12 layers of fabric stopped the bullet, and they added one more layer for just in case.
    lightweight armor, but very hot in the summer.

  • @Luke14616
    @Luke14616 10 лет назад +1

    The bullet animation is wrong, they showed the bullets casing coming out of the barrel, really the casing, after firing would remain the guns cylinder or be ejected from the gun. And just the bullet it self would exit the barrel.

  • @FUTOP2008
    @FUTOP2008 11 лет назад

    People are complaining about the casing being on the bullet, but not the boxing glove that comes out of it...RUclips is a weird place.

  • @WalkinTalkinHawking
    @WalkinTalkinHawking 11 лет назад

    Is it possible to make a musical instrument eg: guitar, in which all the sounds are above the threshold of human hearing?

  • @JMCvariety
    @JMCvariety 11 лет назад

    Question: Why does soap get rid of bubbles?

  • @RK1Hatty
    @RK1Hatty 11 лет назад

    Then we box em' up and ship em' directly to your doorstep!

  • @sverrenyb5458
    @sverrenyb5458 11 лет назад

    he clearly said that the energy is spread over a bigger area, making the bullet deform just before hitting the skin

  • @ibelieve2012FTW
    @ibelieve2012FTW 11 лет назад

    a slow heavy bolet fired from sub machine gun can penetrate a standard steelplated armor. when a modern tank gets hit by a rocket or another tank shoting at it. its modern armor is raly a spaced armor with many layers ofcompost plating and some other materials. its a bit like you need to shoot at the same exact spot twice. me like. :)

  • @OzzieBo
    @OzzieBo 8 месяцев назад

    Am I the only one surprised to see James may here?

  • @fireant202
    @fireant202 11 лет назад

    No mention of kevlar?

  • @lukejewiss7068
    @lukejewiss7068 11 лет назад

    He didn't talk about dragonskin and future advancements in ballistic vests

  • @DJJAE
    @DJJAE 10 лет назад +46

    That was "A History of Bulletproof vests", not how they actually works. FAIL.

    • @demoras
      @demoras 10 лет назад +12

      They actually did explain how they worked. You just didn't pay attention, apparently.

    • @OtisWild
      @OtisWild 10 лет назад

      Josh I believe most bullets back then were unjacketed lead, and rifles occasionally came with bullet casting molds, so soldiers could cast their own bullets (though this'd be back in the mid-19th century and before). IIRC Minie ball molds were distributed to some soldiers as well at the close of the US Civil War and later.
      I can imagine the Korean vests being effective against soft lead that could have bubbles or other inconsistencies being fired at lower pressures, but once high-pressure smokeless powder and FMJ rounds became common you really needed modern polyester aramid fibers to counter them.
      Also, gotta wonder if modern ceramic plates could be lightened up by doing a ceramic/metal/carbon fiber multilayered sandwich plate like modern tanks sport.

    • @RockinTheDub
      @RockinTheDub 4 года назад

      Classic James May.

  • @PSNragglefraggle1
    @PSNragglefraggle1 11 лет назад

    Some poisons don't kill, some can be slow & agonising & some quicker. Some of the slower ones can be cured before death or serious ailments occur. Theres a certain snake venom that has a deadlier effect on the heart, than the wound.

  •  11 лет назад

    an ultrasonic microphone,then processed by a DSP to bring in a few octaves lower to hear it,

  • @brandonpayne7240
    @brandonpayne7240 5 лет назад

    I used to work for a bulletproof helmet manufacturer. Same idea but some layers are hardened.

    • @brandonpayne7240
      @brandonpayne7240 5 лет назад

      I don’t think I can legally say much more but f them since I got fired lol.

  • @TheMichchaal
    @TheMichchaal 11 лет назад

    why does making bullets rotate increase probability of hiting the target?

  • @SundownerMGRR
    @SundownerMGRR 5 лет назад +1

    Back to school merch

  • @SianaGearz
    @SianaGearz 11 лет назад

    He is very much the guy who plays Captain Slow on Top Gear. Also he has his own educational shows on BBC.

  • @Owensey
    @Owensey 11 лет назад

    Kilograms is how you measure mass. Weight is technically measured in Newtons.