The Difference Between High Explosives and Low Explosives

29 märts 2021
759 674 Vaatamised

I didn't even realise that "low explosives" were a thing; let's talk about deflagration, detonation, and how high explosives can actually be safer. • Thanks to Steve from Live Action FX: liveactionfx.com/
Filmed safely: www.tomscott.com/safe/
Camera: Simon Temple templefreelance.co.uk
Edited by Michelle Martin: twitter.com/mrsmmartin
I'm at tomscott.com
on Twitter at twitter.com/tomscott
on Facebook at facebook.com/tomscott
and on Instagram as tomscottgo

Kommentaarid
  • Steve is extremely qualified as an explosives engineer, but thankfully after what he says here, not as a firefighter.

    Tom ScottTom ScottМісяць tagasi
    • This mad lad has figured out how to time travel with a home computer

      Seal BoySeal Boy14 päeva tagasi
    • So umm would cutting the cheese be a high explosive or a low one asking for a friend

      joe jackojoe jacko14 päeva tagasi
    • I can’t believe I missed this comment for four whole weeks

      KingKing15 päeva tagasi
    • @Guess Undheit or how about somebody with noise sensitivity should either not watch a video about explosions, or have the noise down very low already.

      biggreenblobbiggreenblob16 päeva tagasi
    • Ey

      Ryandhika FitryansyahRyandhika Fitryansyah16 päeva tagasi
  • I knew about the distinction in explosive detonation types as explained here but the notion of 'low explosives' as a term never occurred to me before

    Alasdair JakesAlasdair Jakes9 tundi tagasi
  • So in a really dumbed down summary; High explosives have a high tolerance to what causes them to explode, while Low explosives have a low tolerance to what causes them to explode.

    Smol CookieSmol Cookie13 tundi tagasi
  • Bit like hardwoods and softwoods then

    wolfboyftwolfboyft21 tund tagasi
  • I just had that experience with finally realize the meaning of a word today. I realized that deodorant is called that because it removes odors.

    S GS GPäev tagasi
  • The catastrophic explosion in Lebanon was caused by the detonation of a huge amount of ammonium nitrate (NH4NO3) which is a typical high explosive - if you try to ignite it probably won't even burn without fuel, but if you detonate it via a shockwave (some people use a high caliber gunshot to create a shockwave, but a detonator is used too) it creates an incredibly strong explosion, very destructive (brisant)

    Goho PohoGoho PohoPäev tagasi
  • imagine 50 kilos going off in your car... "oops" Just curious: How easy would it be to make high-explosive? (Please don't disappear me, FBI-chan)

    dodododo2 päeva tagasi
  • Okay, smart guy. Is there a "mid-explosive", to complete the trio?

    Richard SamuelsonRichard Samuelson3 päeva tagasi
  • Well, today I learned something again. High explosives really show that in order to create a runaway reaction, you need high pressure, either by containing it, or by its own shockwave. Thank you, Tom!

    750 kV750 kV3 päeva tagasi
  • 1:47 I swear the camera is focusing on the smoke rising up... I think I have seen this before...

    Hand Grabbing FruitsHand Grabbing Fruits3 päeva tagasi
  • I'm watching this thinking is this legal

    Max SpechterMax Spechter3 päeva tagasi
  • A smoke ring that Bilbo would be proud of

    oneworldfamilyoneworldfamily3 päeva tagasi
  • Thanks! Very informative :)

    John SmithJohn Smith3 päeva tagasi
  • Poor camera

    Howdy I'm FloweyHowdy I'm Flowey4 päeva tagasi
  • Similar to the nightstick and the daystick.

    VvultasSVvultasS4 päeva tagasi
    • Special credits go to Camera, who endured several explosions in the making of this video.

      pida siouypida siouy3 päeva tagasi
  • This is actually a fantastic ad for GoPro cameras.

    sokin jonsokin jon4 päeva tagasi
    • mean 'deflagration' since that is a 'low explosive'..."

      pida siouypida siouy3 päeva tagasi
  • 0:38 I was thinking the same thing, I asked myself “what is a high explosive?” And then I saw this video.

    Ajc 7575Ajc 75754 päeva tagasi
  • "The last time I was making a video at this explosives test facility-" * Points at someones backyard *

    pida siouypida siouy5 päeva tagasi
    • forbidden playdoo

      sokin jonsokin jon4 päeva tagasi
  • What’s the best place to buy a ton or two of the high stuff?

    Ian ConcannonIan Concannon5 päeva tagasi
  • Tom Scott, you are the best. Sunsayd

    Adrian GAdrian G5 päeva tagasi
    • Neat.

      pida siouypida siouy5 päeva tagasi
  • "The last time I was making a video at this explosives test facility-" * Points at someones backyard *

    bilishu alissbilishu aliss6 päeva tagasi
  • I actually found this out as a kid by watching Tremors 2.

    T1000T10006 päeva tagasi
  • Oi mate why dat bomb guy look like a goblin?

    MyceliusMycelius7 päeva tagasi
    • If you feel like making any any more explosives videos please stick with Steve, he's really good at explaining.

      bilishu alissbilishu aliss6 päeva tagasi
  • The bang at 1:45 sounds like it would make for great realistic gun shot SFX.

    Jack MellorJack Mellor7 päeva tagasi
  • 3:57 the way the camera goes flying lmao

    facts and logic.facts and logic.7 päeva tagasi
    • That camera did a barrel roll right at the end of the video 4:05

      dolita windodolita windo7 päeva tagasi
  • You should make a video about right to repair and Louis Rossmann's campaign to get it passed in Massachusetts and hopefully hopefully other places that follow.

    Chicken NuggetChicken Nugget7 päeva tagasi
    • "The last time I was making a video at this explosives test facility-" * Points at someones backyard *

      dolita windodolita windo7 päeva tagasi
  • So what was the damage to the GoPro?

    Act MgrAct Mgr7 päeva tagasi
  • forbidden play dough

    MaisieMaisie8 päeva tagasi
  • Meanwhile, the GoPro says in a little squeaky voice "I'm not dead yet".

    seiom jvonyseiom jvony8 päeva tagasi
  • Tom Scott: Spoiling my fun at pointing out to people unknowingly talking about [low] explosives "detonating"... "Well actually..." (You'll have to imagine the nasally voice) "... You mean 'deflagration' since that is a 'low explosive'..."

    Ser Garlan TyrellSer Garlan Tyrell9 päeva tagasi
    • GoPro should pay you for the free advertising you just gave them, that is one durable camera!

      seiom jvonyseiom jvony8 päeva tagasi
  • Special credits go to Camera, who endured several explosions in the making of this video.

    ThomasThomas9 päeva tagasi
    • GoPro should pay you for the free advertising you just gave them, that is one durable camera!

      seiom jvonyseiom jvony8 päeva tagasi
  • Not all explosives are fuel oxidiser reactions though he's describing binary explosives (generally a metal oxidiser reaction) although alot of them these days are actually to do with bond strain, high heat of formation etc in a single chemical (RDX, any of the azides, NTI classic examples) it's not just a really mixed low explosive. It's also catagorized by detonation velocity. The channel explosions and fire explains this really well

    Mick MMick M9 päeva tagasi
    • "The last time I was making a video at this explosives test facility-" * Points at someones backyard *

      seiom jvonyseiom jvony8 päeva tagasi
  • forbidden playdoo

    dnL unsodnL unso9 päeva tagasi
  • So is no one going to mention that vortex ring? That was amazing.

    dolita windodolita windo9 päeva tagasi
  • Neat.

    Ministry of Magic: Department of MysteriesMinistry of Magic: Department of Mysteries9 päeva tagasi
  • HE'S NOT WEARING A RED SHIRT

    Short On IdeasShort On Ideas9 päeva tagasi
    • the most fascinating subjects, particularly the chemistry and physics of explosives and propellants.

      dolita windodolita windo9 päeva tagasi
  • Funny isn't it, how the direction of your content is no longer yours in any fashion, neither directionally or content-wise. The slow degradation of unique and original creative content comes simultaneously with an false sense of urgency to appease algorithms and keep the cash flowing. Bend over, your soul is being shared by the world.

    War DogWar Dog10 päeva tagasi
  • If you feel like making any any more explosives videos please stick with Steve, he's really good at explaining.

    Henrik OldcornHenrik Oldcorn10 päeva tagasi
  • Thanks Tom, now we're ALL on a government watchlist.

    Japanese GuacamoleJapanese Guacamole10 päeva tagasi
  • "The last time I was making a video at this explosives test facility-" * Points at someones backyard *

    doire aintudoire aintu10 päeva tagasi
  • That camera did a barrel roll right at the end of the video 4:05

    Jack ScrivensJack Scrivens10 päeva tagasi
  • 0:06 I had that with Brexit. I had a rough understanding of what it was, but it took an embarrassingly long time to realize it was "Britain's exit"

    Danny NewhouseDanny Newhouse10 päeva tagasi
    • I guess Beirut explosion = low explosive then.

      doire aintudoire aintu10 päeva tagasi
  • Hahah i Barely understand that

    Retro GrizzlyRetro Grizzly10 päeva tagasi
  • Why does that guy speak in x1.25 speed

    OmniRadioOmniRadio10 päeva tagasi
  • "The last time I was making a video at this explosives test facility-" * Points at someones backyard *

    mikea hiooimikea hiooi11 päeva tagasi
  • GoPro should pay you for the free advertising you just gave them, that is one durable camera!

    Draconicrose GamingDraconicrose Gaming11 päeva tagasi
  • The forbidden raspberry bubblegum

    SamSam11 päeva tagasi
    • Lebanon 🇱🇧

      mikea hiooimikea hiooi11 päeva tagasi
  • This channel is just great.

    dog breathdog breath11 päeva tagasi
  • Love things that burn and go boom!

    Sasinc1102Sasinc110211 päeva tagasi
  • You know your channel has made it when you can treat go-pro's like disposable cameras.

    Closeup ChannelCloseup Channel11 päeva tagasi
  • Tom, thanks for making this video! I'd love to see plenty more videos about this subject and plenty more of Steve's excellent presentations. Chemistry and physics are some of the most fascinating subjects, particularly the chemistry and physics of explosives and propellants.

    Anodyne MelodyAnodyne Melody11 päeva tagasi
  • I didn't know play-doh was explosive

    Dean WillisDean Willis11 päeva tagasi
  • 0:11 that reminded me to google the etymology of "parapet," a word i look at every time i leave the library, intend to look up, and then forget to by the time i get home. thank you.

    Avarni BAvarni B11 päeva tagasi
  • Another fantastic tidbit thanks

    PIECES OF TIMEPIECES OF TIME11 päeva tagasi
  • I realized something like that yesterday when I realized that vacuum and continuum both have 2 Us in a row.

    MakaneekMakaneek11 päeva tagasi
  • This explains why the high explosives in the SS Richard Montgomery are safe, unless the cluster bombs go off.

    inkink11 päeva tagasi
  • I guess Beirut explosion = low explosive then.

    echan101echan10112 päeva tagasi
  • Tom scott i love your videos so much .. please never stop :')

    CwJCwJ12 päeva tagasi
  • me listening to rain sounds 10hrs to relax: 😌 autoplay: 1:45

    ThisIsAMJThisIsAMJ12 päeva tagasi
  • The real question is : is the GoPro really dead ?

    Charlie.Charlie.12 päeva tagasi
  • So what is technically called Low Explosives is what is more commonly just called explosives, like fireworks. It's interesting to think that carrying 50 kilos of C4 plastic explosive is more safe than 50 kilos of fireworks considering one is used by military and law enforcement and another is used by those as young as elementary school age (with proper supervision of course).

    Matt YoakumMatt Yoakum12 päeva tagasi
  • Lebanon 🇱🇧

    t swerdnat swerdna12 päeva tagasi
  • Tom scott is the guy that answers all the random questions you asked to your dad back in the day

    Mikołaj NagyMikołaj Nagy12 päeva tagasi
  • Would be cool if there was a way to incorporate these into your mouth so you could actually shout like in Skyrim :D

    Jordan WeirJordan Weir12 päeva tagasi
  • That Semtex looks like tasty watermelon chewing gum.

    HappyBeezerStudios - by Lord_MogulHappyBeezerStudios - by Lord_Mogul12 päeva tagasi
  • But what about medium explosives?

    HappyBeezerStudios - by Lord_MogulHappyBeezerStudios - by Lord_Mogul12 päeva tagasi
  • This is your 600th video!

    2C (02) Chan Kwan Yu2C (02) Chan Kwan Yu12 päeva tagasi
  • Did u get shadow banned or something?

    River HardmanRiver Hardman12 päeva tagasi
    • i think the video might have been private or taken down by YT

      ThetomgamerboiThetomgamerboi12 päeva tagasi
  • So fireworks are low explosives?

    blankblank12 päeva tagasi
  • Tbh. I just want to see things go boom

    MR hi guyMR hi guy12 päeva tagasi
  • 😊😲

    fatehyabalifatehyabali13 päeva tagasi
  • 1:59 *_Forbidden Bubblegum_*

    AlexanderAlexander13 päeva tagasi
  • i mean he's not unright, but i don't like it. i get that it's for the internets but still... oh and anybody claiming 1.1 is safe in a fire is a bloody muppet

    Evan McCloyEvan McCloy13 päeva tagasi
  • Fun fact, most things can be "fuel" for energy expenditure purposes, and foodstuffs tend to have more chemical energy than explosives, they just also usually aren't oxidized. If you make a big cloud of them, a single spark can make a BIG boom

    YourantsallyYourantsally13 päeva tagasi
  • Well, the government is now watching us.

    Alien BaconaterAlien Baconater13 päeva tagasi
  • Now we just need a tutorial on manufacturing

    In process to deleteIn process to delete13 päeva tagasi
  • 3:27 „Stephen focus!“

    Felix H.Felix H.13 päeva tagasi
  • Why does the semtex look so... Tasty?

    Alex ThorntonAlex Thornton13 päeva tagasi
  • Tom Scott's channel is a more interesting Discovery channel

    extream kabab ilextream kabab il13 päeva tagasi
  • Low explosives is a thermal reaction high explosives is a chemical reaction. Every Irish schoolboy learned this in his science class, even the quantity allowed for transport. Oh yea, the schoolgirls were included!😂

    kdmc40kdmc4013 päeva tagasi
    • Are you under the impression that low explosives are not chemical reactions?

      Gareth HGareth H13 päeva tagasi
  • Nicely done. Now I am getting into finer points. Not all high explosives are molecular explosive, like TNT or PETN, with the fuel and oxidizer all in one molecule. Some are mixtures such as ANFO (ammonium nitrate-fuel oil) - no chemistry happens when these are mixed. Similarly smokeless powder, usually considered a low explosive, is primarily composed of nitrocellulose which does have a fuel and oxidizer in one molecule. The defining difference is the speed of the reaction. High explosives detonate at a supersonic speed while low explosive deflagrates at a subsonic speed.

    Gavin EdmondstoneGavin Edmondstone13 päeva tagasi
  • Content

    garGANtuangarGANtuan13 päeva tagasi
  • Its funny how the intro also perfectly applies to tom mispronouncing 'explosive'

    ChloeChloe13 päeva tagasi
  • So, high explosives are similar to how nukes are made, where you need a primary explosion to set off the main reaction

    Rebecca ConlonRebecca Conlon13 päeva tagasi
  • I play Airsoft at that place. It's called ace combat

    Your Mum StinksYour Mum Stinks13 päeva tagasi
  • The lowexplosive is fireworks,high explosive is c4

    Rebecca ConlonRebecca Conlon13 päeva tagasi
  • Ok

    Mckenzie WelshMckenzie Welsh13 päeva tagasi
  • You should do a video on 'Operation Vegetarian'

    Luke DaviesLuke Davies13 päeva tagasi
  • ...left the GoPro right next to the detonation, but the camera survives, just flies away, remains operative. Maybe the BEST advert for that camera you could think of...

    gajustempusgajustempus13 päeva tagasi
  • 1:58 - Forbidden cheese.

    A.F. WhitepigeonA.F. Whitepigeon13 päeva tagasi
  • any collaborations with smartereveryday, mark rober, veritasium ect. in the future?

    I Judge YouI Judge You13 päeva tagasi
  • 691k views and 69k likes Mmmm nice

    Zaid AhmadZaid Ahmad14 päeva tagasi
  • Looks like a giant block of bubblegum

    C YC Y14 päeva tagasi
  • Based Tommy Scot admitting his mistakes and issuing a clarification/correction upon the realization.

    Nonaya businessNonaya business14 päeva tagasi
  • steve the pyrotechnics expert is making me think the video is playing at 1.5.x speed

    Ian SampsonIan Sampson14 päeva tagasi
  • Wow I didnt thought that explosives made mushroom clouds at all except for atomic bombs

    Flat Mars SocietyFlat Mars Society14 päeva tagasi
  • Hi Tom Can you do a video on backslang/pig latin.

    Aleena ThomAleena Thom14 päeva tagasi
  • "High explosives won't go off ... unless you want them to." Although this depends on the explosive: nitroglycerine in particular is *notorious* for going off simply by dropping it.

    Alpheus MadsenAlpheus Madsen14 päeva tagasi
  • His tongue out at 3:30 is exactly what I imagine an explosives expert to look like.

    Phil StarPhil Star14 päeva tagasi
  • I don't know what that red putty is, but it looks delicious

    Moritz BurkleMoritz Burkle14 päeva tagasi
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