How do bulletproof vests work? - Max G. Levy

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  • Опубликовано: 21 дек 2024

Комментарии • 223

  • @Mindwalker030
    @Mindwalker030 4 месяца назад +306

    Very important note: Kevlar is a brandname owned by DuPont. The actual material is Aramid.

    • @aquapenguin9697
      @aquapenguin9697 4 месяца назад +38

      I feel like it's a sorta kleenex/band-aid/tupperware thing where the actual item is called something different but its so associated with that one brand everyone just calls all items of that type the brand's name y'know?

    • @ARandomAccount110
      @ARandomAccount110 3 месяца назад +6

      All Kevlar is an Aramid, but not all Aramids are Kevlar.

    • @sukontoraharjo6565
      @sukontoraharjo6565 9 дней назад

      @@aquapenguin9697band-aid is a brand?? 😱

  • @reihanasabrina645
    @reihanasabrina645 4 месяца назад +536

    “My tires were bulletproof, but unfortunately the rest of my car was not”

    • @akgoldakdiamond4841
      @akgoldakdiamond4841 4 месяца назад +10

      Bonnie & Clyde said the same cuh

    • @yzsvlog7362
      @yzsvlog7362 4 месяца назад +2

      Actually, the tires wouldn’t just serve the purpose of being bullet proof, but also last very long due to being made of the material. A tire might accumulate more damage than getting shot at over the course of many years, but your car will be fine because it’s not the thing touching the road.

    • @hermanjohnson9180
      @hermanjohnson9180 4 месяца назад +4

      I get the joke but even in the toughest all terrain tires the sidewall is still the weakest.
      (Meaning that even in the most military grade bullet resistant tires, the sidewall is never strong enough)
      Unless it's a semi truck tire that weighs hundreds of pounds then the tire can still be pierced. But once again it's only the sidewall.
      Only military semis/tractors are 100% bulletproof with rubber tires.

  • @MarcusVance
    @MarcusVance 4 месяца назад +653

    While not rated for blades, kevlar vests are pretty darn resistant to blades.

    • @Banter07
      @Banter07 4 месяца назад +43

      Read this as “while not rated for babies”

    • @containedhurricane
      @containedhurricane 4 месяца назад +13

      So, bulletproof kevlar vests can prevent a knife from piercing our body?

    • @zxqwerxz
      @zxqwerxz 4 месяца назад +42

      @@containedhurricane The knife will most likely make it through to your body, but only the tip. Still, it'll ruin your armor.

    • @林義軒-j7q
      @林義軒-j7q 4 месяца назад +41

      ⁠@@containedhurricane I remember watching an experiment about this, and the answer is yes. Although there might be a small cut, but you will be fine.
      However, if it is a long sewing needle, then you will get pierce pretty badly. The needle can pass the tiny gap between fibers pretty easily.

    • @its_dey_mate
      @its_dey_mate 4 месяца назад +22

      @@containedhurricane It will work wonderfully against slashes, but thrusts and piercings being stopped will depend on how thick the vest is.

  • @3452te
    @3452te 4 месяца назад +262

    As someone who worked in private security before, i can attest that sometimes a Level III bulletproof vest is often a lifesaver. Not just to protect one self but guarantee that'll be home on the next day and so forth. Sure the weight can be cumbersome but after awile, you'll get use to it and yes, you eill sweat in them. I knew some cops who do wear them in some of my old post who come would say the same thing as it'll be uncomfortably weird in not having them on.

    • @mlgcactus1035
      @mlgcactus1035 4 месяца назад

      And yet they still are the ones all trigger-happy and instigating violence

  • @Maus-nc8jo
    @Maus-nc8jo 4 месяца назад +101

    As a chemist this video made me very happy!!🤗

    • @gamerxtreme1354
      @gamerxtreme1354 4 месяца назад +4

      As a video this chemist made me really happy!!🤗

    • @kaneadams9536
      @kaneadams9536 3 месяца назад

      As happy this chemist made me very video 🤗​@@gamerxtreme1354

    • @kazukawasaki97
      @kazukawasaki97 2 месяца назад

      1:59, shouldn't it be terephthalic acid instead of that terefloral chloride (idk name), the cooh has an oh structure for condensation, without it polymerization itself shouldn't happen.....am I missing something,sorry new to this

  • @DreadPirateRobertz
    @DreadPirateRobertz 4 месяца назад +49

    I used to make bulletproof vests rated for 7.62 rounds. It starts with a ceramic plate, then hundreds of layers of super plastic are compressed by being superheated in a kiln around the plate. When it comes out you spread this extremely caustic epoxy around the edges of the finished product to protect it from environmental hazards. THEN the plate is stitched into a Kevlar vest. The whole thing with a front and back plate weighs about 15 lbs. We were also considering making helmets that could withstand pointblank 7.62 fmj's but ultimately decided that it was pointless as the force of impact would likely break the wearer's neck anyway. It was a good job but government contracts were unreliable, we'd spend entire weeks just sweeping floors during periods of stagnation. It was nice knowing that I helped craft a product that saved a few lives though.

    • @alexd832
      @alexd832 4 месяца назад +4

      Compliment for the job, few can say I've created modern armour which saves lifes

  • @redwinedrummer
    @redwinedrummer 4 месяца назад +39

    Kevlar is also used as snare drumheads in modern marching drumcorps due to the very high tensions required. They produce a crisp and articulate sound.

  • @KateDexter
    @KateDexter 4 месяца назад +46

    I thought it was simple, but now I see that it’s fascinating 😆

  • @antonykuo3809
    @antonykuo3809 3 месяца назад +9

    1:57. She didn’t make kevlar. She made aramid. The fabric is called aramid while kevlar is the brand name that made the first aramid

    • @mathman0569
      @mathman0569 18 дней назад

      it's about as pointless to say this than to say the same thing about chap-stick, jet skis or escalators.

  • @overtimechaos
    @overtimechaos 4 месяца назад +11

    As a keen chemistry student, this is the only TedEd video that i understand at an advanced level 😂

  • @marcusbaker404
    @marcusbaker404 4 месяца назад +28

    Hey Guys! Great day to learn something new!

  • @BlueSmoke216
    @BlueSmoke216 3 месяца назад +6

    Another interesting bit of history is that bullet proof vests existed before this point. I believe Jan Szczepanik and Casimir Zelgen worked together to invent one in 1897 primarily using silk, which had worked noticably well in protecting from the blackpowder guns of that time. There are anecdotal stories of people surviving gunshots due to silk handkerchiefs in their pockets!
    I don't know why silk worked so well, hopefully someday I can do a little digging and find out.

    • @aquapenguin9697
      @aquapenguin9697 3 месяца назад

      my guess is because it's stretchy like a trampoline so the bullets just bounce off but I could be completely wrong since I am not a silk expert (I also know Silk can be made by spiders and it has to be pretty strong for their webs so say for example a fly doesn't just break through it so that could be another factor)

  • @JadeTheOnly
    @JadeTheOnly 4 месяца назад +10

    This was very educational. I never knew the material was so complex!

  • @Petch85
    @Petch85 4 месяца назад +45

    I feel like the caricature of Stephanie Kwolek (1:00) underestimated her big brain and overestimates her body size a little 😂

    • @anuragsharma4159
      @anuragsharma4159 4 месяца назад +11

      Nah its the style of caricature See 0:27 everyone is the same type.

    • @BIoxby
      @BIoxby 4 месяца назад +4

      ​@@anuragsharma4159 it's so bad though

  • @Mynonono
    @Mynonono 18 дней назад

    1:35 Stephanie’s body-to-head ratio is crazzzyyyyyy. Anyway, I love the video 😁

  • @jb76489
    @jb76489 3 месяца назад +5

    Gotta love how they made Stephanie Kwolek ambiguously brown here when is real life she was very much white

  • @COD-l8t
    @COD-l8t 4 месяца назад +39

    Really good and diverse subjects to learn about through these informative and attention seeking videos.

  • @randomgirl2994
    @randomgirl2994 4 месяца назад +9

    Pretty cool to learn that a female chemist was the one who invented the polymer to allow for bullet proof gear and vehicles, air craft, etc. to be invented

  • @gailaltschwager7377
    @gailaltschwager7377 4 месяца назад +4

    Thank you!

  • @Killerwhale223
    @Killerwhale223 4 месяца назад +11

    Specatucular video as always!

  • @thituannhanguyen2056
    @thituannhanguyen2056 4 месяца назад +43

    As someone who is a retired police officer I have wore tons and tons bullet proof vest I sometimes got shot but it wasn’t that big when hearing that this guy made the vest I started thanking him for my life for days
    P.S i got shot for like 10 times and 8 of them come from facing mass shooters I still feel the pain today but at least I am not dead

    • @GlamourFab74
      @GlamourFab74 4 месяца назад

      ACAB

    • @notcommon58
      @notcommon58 3 месяца назад

      This comment is an obvious lie. Shot 10 times, and 8 times from mass shooters? Jesus. No need to lie over the internet. Your channel is a kid as well.

  • @pramodsingh7569
    @pramodsingh7569 4 месяца назад +2

    Thanks

  • @seanphiliplasque
    @seanphiliplasque 13 дней назад

    Was not expecting Ted-Ed to make something related to the military, I'm glad they did.

  • @zxqwerxz
    @zxqwerxz 4 месяца назад +4

    And its important to remember bullet resistant doesnt mean stab or slash resistant. So knives are still dangerous.

    • @slkjvlkfsvnlsdfhgdght5447
      @slkjvlkfsvnlsdfhgdght5447 4 месяца назад +1

      it does: bullets are essentially smalle blades/pointy metal bits traveling very fast

    • @zxqwerxz
      @zxqwerxz 4 месяца назад

      @@slkjvlkfsvnlsdfhgdght5447 I'm going give others a chance to correct you before I jump in.

    • @ClaudiaSegoviano
      @ClaudiaSegoviano 4 месяца назад

      ​@@slkjvlkfsvnlsdfhgdght5447 I hope you're trolling

    • @vincentlee7359
      @vincentlee7359 4 месяца назад +3

      ​@@slkjvlkfsvnlsdfhgdght5447sounds like you never seend blade go through kevlar before. Bullets are not sharp. And don't have sharp edges my guy.

  • @beaker4311
    @beaker4311 4 месяца назад +6

    Second Chance vs. Magnum Force best davis movie! Ty redlettermedia!

  • @shatter382
    @shatter382 4 месяца назад +44

    I feel like the person who was tasked to animate Stephanie Kwolek never once looked at a picture of her

    • @bonwatcher
      @bonwatcher 4 месяца назад +4

      Lol, I was thinking the same thing. She has huge arms and such a tiny head. 🤣

    • @AmitPatel-sx2zs
      @AmitPatel-sx2zs 4 месяца назад +2

      Maybe that’s just the art style.

    • @victoriakovac-hidalgo8244
      @victoriakovac-hidalgo8244 4 месяца назад +2

      Yeah, they made her look kinda Indian, and her head is so small in comparison to her arms. Sure, that could be the art style, but I agree with your point.

    • @Exotic6792
      @Exotic6792 4 месяца назад +9

      @@victoriakovac-hidalgo8244 That's the classic "Corporate artstyle" which everyone clowns on lol

  • @casterivo
    @casterivo 3 месяца назад +2

    Imagine how scary it was for people in the area

  • @katherineknapp4370
    @katherineknapp4370 4 месяца назад +1

    So cool

  • @zodiacfml
    @zodiacfml 4 месяца назад +2

    nice tidbit at the end about speakers. I'm no audiophile but I'm skeptical of kevlar on speakers...I guess not anymore.

  • @DiyorbekEshboboyev-p4j
    @DiyorbekEshboboyev-p4j 4 месяца назад +1

    This is awesome and useful content thank you

  • @yenmyyen6114
    @yenmyyen6114 4 месяца назад

    Spectacular videos, really helps with education

  • @natheriver8910
    @natheriver8910 4 месяца назад

    Very fascinant 👏 👏 👏 👏 👏

  • @tejukanaparthy
    @tejukanaparthy 4 месяца назад

    i love ted ed :)

  • @markmunroe-hz8rf
    @markmunroe-hz8rf 4 месяца назад +11

    Bullet vest sings: hit me with your best, yeah hit me with your best shot!
    Fire away!

  • @awesomehpt8938
    @awesomehpt8938 4 месяца назад +16

    Bullet resistant vests are good against small calibres and from assault rifles especially when they being fired at from a good distance away and the bullets lose energy,
    But if you get hit by a 50 cal. Nah you’re done for.

    • @chieckenman4432
      @chieckenman4432 4 месяца назад +5

      I mean... depends on which .50 cal. 50 bmg definitely dead dead, but 50 AE probably not.

    • @Kimoto504
      @Kimoto504 4 месяца назад +14

      Why not go further? A 120mm tank shell won't be stopped either... LOL. Of course if the bullet (projectile) gets bigger and its charge gets stronger, the vest will have a harder time stopping it...

    • @vincentlee7359
      @vincentlee7359 4 месяца назад +9

      And who tf is walking around with a 50 cal?

    • @setcheck67
      @setcheck67 4 месяца назад +2

      @@vincentlee7359 While not conventional, you could carry with a 500 S&W or desert eagle. Definitely not expected, but it's a choice.

    • @vincentlee7359
      @vincentlee7359 4 месяца назад +1

      @@setcheck67 who has the money for that 🤔

  • @sissiwzx
    @sissiwzx 4 месяца назад

    I wish my high school chemistry teacher had taught like this🙂‍↔️

  • @netherite9051
    @netherite9051 4 месяца назад +1

    Neat.

  • @tomp7545
    @tomp7545 3 месяца назад +3

    Very interesting but the odd human body shapes used in the illustrations were distracting.

  • @joannfuhrer3114
    @joannfuhrer3114 3 месяца назад +1

    I wear Kevlar pants when I ride my motorcycle. Teamed with an armored jacket and a well fitting helmet, I have a better chance of surviving a crash.

  • @nevalsezer6797
    @nevalsezer6797 4 месяца назад

    yupiiiii new video ;))))

  • @auro1986
    @auro1986 4 месяца назад +6

    anything that can either absorb or organize shock waves from bullet's impact can be used as bullet proof

  • @lilhedgehog8576
    @lilhedgehog8576 4 месяца назад +1

    1:15 I like her tiny head and big arms. There needs to be more character designs like this. She reminds me of the dude from big hero six! 😄

  • @ianiskapetanidis9196
    @ianiskapetanidis9196 3 месяца назад

    All polymers with sufficient number of repeating units, have a viscous behavior that's why they are called Visco-Elastic materials.

  • @oforiarcher002
    @oforiarcher002 4 месяца назад +1

    wow

  • @dominikkvesic6158
    @dominikkvesic6158 4 месяца назад +3

    Hello which program you use for animation? 😁

  • @عبدالعزيزألأزرق-و5ي
    @عبدالعزيزألأزرق-و5ي 4 месяца назад

    Superb

  • @SuperBlessedKing
    @SuperBlessedKing 4 месяца назад +1

    SuperMan is bulletproof without a bulletproof vest.

  • @lucianoosorio5942
    @lucianoosorio5942 4 месяца назад +38

    Theodore Roosevelt: A bullet can’t stop the bull moose!
    Ben: Ohh, he a zombie! Headshot!
    James: Why did you do that man? You tried to do assassin’s creed call of duty stuff. He got a vest.

  • @ninahouse1209
    @ninahouse1209 4 месяца назад

    I want the next video is about riddles or history!!!!

  • @andrew_wow6892
    @andrew_wow6892 4 месяца назад

    Taking notes...

  • @stefanvanvalkenburgh9378
    @stefanvanvalkenburgh9378 Месяц назад

    The caricatures are unsettling.

  • @rzerobzero
    @rzerobzero 3 месяца назад +2

    Did the demon who created Jovia Financial's corporate identity animate this (IYKYK)? This graphical style is so.....unsettling.

  • @importantname
    @importantname 4 месяца назад +1

    very tricky - title sound super dangerous and exciting, but is talk about chemistry of micro fibrers. Very tricky :)

  • @user-tu8wr2im2q
    @user-tu8wr2im2q 4 месяца назад +1

    🎉

  • @MrApw2011
    @MrApw2011 4 месяца назад +1

    If the purpose of a company is to produce shareholder value some way or another, then probably yes. If the purpose of the company is to provide the best product or service it can to the world, probably not.

    • @jamesw1659
      @jamesw1659 3 месяца назад

      Those two things often go together.

  • @chessbergen
    @chessbergen 4 месяца назад +12

    Yeah, Kevlar can save lives, but if you think about it, seatbelts can too

  • @queent-g4b
    @queent-g4b 4 месяца назад

    I got a ted ad

  • @JoseTumale
    @JoseTumale 3 месяца назад

    I always knew kevlafrom shooting and survival games I didn't it was simply made with synthetic fibers.

  • @diskyariajetmiko
    @diskyariajetmiko 4 месяца назад +32

    Kind of interesting we invented nuclear bomb before bullet proof vest. You'd think bullet proof vest will be really useful in ww2

    • @HIFLY01
      @HIFLY01 4 месяца назад +2

      I mean they used plate armor in the Napoleonic era and theres a famous cowboy heist involving a cast iron stove being turned into a walking suit of armor so not really sure what you mean

    • @jazarli1825
      @jazarli1825 4 месяца назад +1

      ​@@HIFLY01 You literally ignored his point, he's saying they could have done some research to equip bulletproof material to soldiers in WW2

    • @HIFLY01
      @HIFLY01 4 месяца назад +2

      @@jazarli1825 ok and they could have devoted research into making cellphones too so you don't need a 20lb radio. That doesn't mean anything

    • @jazarli1825
      @jazarli1825 4 месяца назад

      @@HIFLY01 ... wow, what an interesting conversation

    • @HIFLY01
      @HIFLY01 4 месяца назад +3

      @@jazarli1825 theres nothing to talk about. Technology changes over the years.
      Also not going to mention that kevlar wont protect you against a 8mm mauser or 30.06 without high end plates which isn't just kevlar anymore but combinations of different materials. They had steel body armor which would have stopped these rounds but was heavy

  • @hanve
    @hanve 4 месяца назад

    ❤❤❤

  • @Wired4Life2
    @Wired4Life2 4 месяца назад

    FIGHT! FIGHT! FIGHT!

  • @JiannaSandoval
    @JiannaSandoval 4 месяца назад

    Not me early with all these bots 😭. Thanks for the video, TED-Ed!

  • @dylanbyrne2304
    @dylanbyrne2304 4 месяца назад

    Simple, there built different

  • @VPCh.
    @VPCh. 3 месяца назад +3

    0:58 Why do these videos always use that same corporate artstyle? Like why would an artist look at a picture of her, and decide to draw her arms massive, her head tiny, and her skin a different color?

  • @bryanpetersen1334
    @bryanpetersen1334 Месяц назад

    Average hunting rifles will shoot through the chest plate, front, and back of at least one Kevlar vest, the one I had anyways. I had nothing long enough to measure how far the bullet penetrated into the live tree that we strapped the vest to. I wondered what kind of injury one would suffer if there was enough Kevlar to stop that bullet.

  • @CharlotteXMoon
    @CharlotteXMoon 4 месяца назад +1

    Can you recycle ony of the materials?

  • @jerrmiahsalazar2326
    @jerrmiahsalazar2326 4 месяца назад +2

    tf2 Heavy : I am bulletproof

    • @reinardish
      @reinardish 4 месяца назад

      TF2 Demoman : Not one of you gonna survive this !

  • @firebubble191
    @firebubble191 4 месяца назад

    Bestagon-shaped bond

  • @jessicajayes8326
    @jessicajayes8326 4 месяца назад

    I heard the invention of the vest was inspired by Superman!

  • @uanime1
    @uanime1 4 месяца назад +1

    Technically the first bulletproof vest was plate armour.

  • @theprancingprussian
    @theprancingprussian Месяц назад

    padded jacks of history could resist firearms back in the day at long range, some accounts of the spanish using incan cloth armour due to it being not way too far off from their cuirasses but way more comfortable

  • @wikinets
    @wikinets 4 месяца назад

    1 hour gang

  • @Goofy_ahhnimater2412
    @Goofy_ahhnimater2412 4 месяца назад

    2:43 ATOMIC WHAT?

    • @light9205
      @light9205 4 месяца назад +2

      Bonds

    • @AlyssaXing
      @AlyssaXing 2 месяца назад

      Bonds, not “bombs”

  • @dennissapnu
    @dennissapnu 4 месяца назад +1

    Nice.

  • @RichardHannay
    @RichardHannay 4 месяца назад +1

    Time for bulletproofproof vest guns

  • @InsiyaAbbas-kl6cm
    @InsiyaAbbas-kl6cm 4 месяца назад

    👌🏻✨👍🏻

  • @borazd1605
    @borazd1605 4 месяца назад +1

    Love your videos, but the music in this one is frusturating to me 🫠.

  • @MialovesBlue
    @MialovesBlue 4 месяца назад

    can you do a video about hermit crab?
    waiting for your respond

  • @Passion84GodAlways
    @Passion84GodAlways 4 месяца назад

    👀👂🏾🍿

  • @reetupaswan8244
    @reetupaswan8244 4 месяца назад

    I just watched Ted Ed ad in Ted Ed video. 😂

  • @reinardish
    @reinardish 4 месяца назад

    John Wick bulletproof dress

  • @achmadramdhan3629
    @achmadramdhan3629 4 месяца назад

    1:52 Very small head, huge hand. This style of art is weird.

  • @James_Knott
    @James_Knott 4 месяца назад +1

    Do they come with a money back guarantee? 🙂

  • @AbrahamSantiago-zo8sl
    @AbrahamSantiago-zo8sl 4 месяца назад +11

    I accumulated a total of 89 thousand today. I am truly grateful for all the knowledge and information you have given me over the past few weeks. I started with 5 thousand 2 months ago .God bless you Deborah

    • @AbrahamSantiago-zo8sl
      @AbrahamSantiago-zo8sl 4 месяца назад

      Thanks to my co-worker (Johnson ) who suggested expert Deborah Davis

    • @AbrahamSantiago-zo8sl
      @AbrahamSantiago-zo8sl 4 месяца назад +1

      After I raised up to 525k trading with her I bought a new House and a car here in the
      state🇺🇸 also paid for my son's
      surgery....Glory to God, shalom.

    • @barcolline
      @barcolline 4 месяца назад +1

      +160

    • @barcolline
      @barcolline 4 месяца назад +1

      8448

    • @barcolline
      @barcolline 4 месяца назад +1

      8054

  • @mrmimeisfunny
    @mrmimeisfunny 4 месяца назад

    Are their heads really tiny or are their bodies really huge?

  • @snomnoom2741
    @snomnoom2741 4 месяца назад +1

    Hi

  • @ecutillett
    @ecutillett 4 месяца назад +1

    Dyneema is stronger and lighter.

  • @klloydplata4098
    @klloydplata4098 4 месяца назад +2

    This is why Frank Castle aka The Punisher loves wearing bulletproof armor sleeveless undershirt singlet jacket because he always wants this for preparation protective purpose.

  • @SorakaOTP462
    @SorakaOTP462 4 месяца назад +3

    first

  • @the_fat_ghost
    @the_fat_ghost 4 месяца назад +1

    I highly recommend the documentary 2nd Chance (2022) which covers the interesting and bizarre life Richard Davis.

  • @kanishkakumar6740
    @kanishkakumar6740 4 месяца назад +1

    2nd

  • @TheDoomWizard
    @TheDoomWizard 4 месяца назад +2

    Ad-blocker. No just kidding there was that crazy guy that manufactured these for the nation's police. He was nuts.

  • @farzanasarwor2749
    @farzanasarwor2749 4 месяца назад +1

    4th!!!

  • @izzzarinziqri8694
    @izzzarinziqri8694 4 месяца назад

    Joseon Myeonje-baegap: 😢

  • @SoumyaGuharoy-m9r
    @SoumyaGuharoy-m9r 4 месяца назад +1

    11st to comment.

  • @Su27Flankerwarthunder
    @Su27Flankerwarthunder Месяц назад

    but even when we wear bullet proof vest, we can't even survive if we are hit by a 12,7mm bullet from Barret M82.

  • @Broslo-zk1cu
    @Broslo-zk1cu 4 месяца назад

    Can you get don hertzfeldt animate one of your videos

  • @Psrj-ad
    @Psrj-ad 4 месяца назад +9

    what is this corprate artstyle looking animation?

  • @tritile
    @tritile 4 месяца назад

    Kwolek was white.

  • @princec9151
    @princec9151 4 месяца назад

    yo