World's Largest Horn Shatters Glass

28 nov 2018
35 574 360 Skatījumi

I might upgrade my car horn to this. Shoutout to Portal from Facebook for their support on this video. Learn more and get yours at:
Watch the What's Inside video here:
Here is a behind the scenes video from the day:
High Speed camera courtesy of They rent high speed cameras at killer prices. Hit them up.
ELI20 version: I answered why you want a large outlet area but not necessarily why it curves like that. Anytime you have a sudden change in cross-sectional area in the horn you will get waves reflecting back at the source. You don't want that because that is wasted energy that could have moved forward. Even if it goes from a small cross-section to a larger, if you do it suddenly you get those wasted waves. So you want the horn to basically be asymptotic at the exit so you never have a jump in discontinuity when it exits to the wide open air. So a directors cone isn't as good as the curved shapes I showed because it still has the sudden change when it dumps into the open air.

0:10- Arrow- Andrew Applepie -
1:08- Dance- Danijel Zambo-
2:00- Kalimba Jam- Blue Wednesday -
3:00- New shoes- Blue Wednesday -
7:30- Ceral Killa- Blue Wednesday -
8:47- Q- Blue Wednesday -
9:46 Too Happy to be cool by Notebreak-

Summary: I made a huge horn and broke glass with it and explored why horns are shaped the way they are.

They are soft-

I make videos like this once a month all year long while supplies last:

  • Fun fact: I listened to this with headphones on

    Jason WangJason WangPirms 5 Minūtes
  • You made a ship horn lol

    Mr plane wants to know if you are good todayMr plane wants to know if you are good todayPirms 40 Minūtes
  • So this is where those random noises from the sky are coming from all over the world....

    esvin8771esvin8771Pirms 2 Stundām
  • I hope future tanks would have these becuase this might help

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  • is that a thunderbolt horn??

    PB PolarMc19PB PolarMc19Pirms 9 Stundām
  • " go highwer marcko worbo" aww so cutw

    Matthew WashingtonMatthew WashingtonPirms 14 Stundām
  • Ihr labert zu viel. Redet nicht, sondern macht.

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    Juan HernandezJuan HernandezPirms 18 Stundām
  • When the big horn made a sound it just sounded like a big fart 🤣( I'm not hating I'm just saying its funny)

    W BusliW BusliPirms 18 Stundām
  • Imagine they were standing 3 inches in front of the horn

    Baxter Stockman30 CondoluciBaxter Stockman30 CondoluciPirms 18 Stundām
  • The new Federal Signal Thunderbolt

    Safeman4202Safeman4202Pirms 18 Stundām
  • this is just a foghorn

    Thaddeus NicholsThaddeus NicholsPirms dienas
  • This dude really likes breaking glass

    Olz GamesOlz GamesPirms dienas
  • 2:59 its green right🤔

    FoxyDuoFoxyDuoPirms dienas
  • I appreciate the amount of inventions that he makes and how long they take

    Florida ManFlorida ManPirms dienas
  • The most common comment Girlfriend - May be he is cheating on me Boyfriend - 📢📢📢

    Free GuyFree GuyPirms dienas
  • "wait, what if I scream?" "Eeeeeeeek"

    Yayasan AnschelYayasan AnschelPirms dienas
  • Boring

    Fedor IvanovFedor IvanovPirms 2 dienām
  • Imagine just stacking 151,000 Large airhorns in a straight line then firing it to destroy an entire county.

    Anh TranAnh TranPirms 2 dienām
    • Yeah

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  • Hi

    Heidi ErnestHeidi ErnestPirms 2 dienām
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  • Awesome 👏

    Jorge ZuniJorge ZuniPirms 2 dienām
  • Come on bro.... You can do that with wine glass's using nothing but the resonate frequency of the glass played through a set of 61/2" midrange speakers and around 1kw of power on them. Smh.... And you needed the worlds largest horn to accomplish that???

    Glen CalhounGlen CalhounPirms 2 dienām
  • The way she said go higher uncle robber

    yvng toxicyvng toxicPirms 2 dienām
  • this is the horn I want when protesters tries to block traffic

    Elias LusaElias LusaPirms 2 dienām
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    Andrea YangAndrea YangPirms 2 dienām
  • So, if this horn we change to km/1Hours 0,34 km × 3600 s = 1224 km Its so fast wwwooowww

    Adithia Al AzizAdithia Al AzizPirms 2 dienām
  • WOW that’s so cool WAHHHHHHHHHHHH

    blazin cottonblazin cottonPirms 2 dienām
  • It's midnight Neighbours: 4:54

    Max MajerowiczMax MajerowiczPirms 2 dienām
  • Do not listen to this scene 5:00 with out headphones

    One-up GamingOne-up GamingPirms 3 dienām
  • RIP headphone users aka me

    Amogh BadikolAmogh BadikolPirms 3 dienām
  • this channel is able to make me learn much more than my school can ever do in my entire life

    Aura's planet of CartoonsAura's planet of CartoonsPirms 3 dienām
  • Dude stop, your waking up spongebob, he needs his sleep for work

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  • oh yeah

    Gabriel EstradaGabriel EstradaPirms 3 dienām
  • This is no horn it's a sound weapon. ^^

    C. K.C. K.Pirms 3 dienām
  • Nerd

    Moinul KabirMoinul KabirPirms 3 dienām
  • make a massage chair powered by sound

    ZeroxylonZeroxylonPirms 3 dienām
  • This is a great physics lesson, after Physics comes History In 1964 John Hilliard, who worked for the parent companies of Altec Lansing published a paper on a horn being used to test metal fatigue on spacecraft and supersonic aircraft. It was 12 feet to a side and the peak output was 180db. It used compressed air and had a frequency range of 25 Hz to 1,000 Hz.

    John HodgsonJohn HodgsonPirms 3 dienām
  • 1:46 excuse me sir is that a traffic cone

    ilikesocks 2010ilikesocks 2010Pirms 3 dienām
  • Mark the horn thing has an open end so it spreads the sound and makes the sound as loud as possible as sound will travel everywhere Im only 11 correct me if im wrong

    Mustafa KhanMustafa KhanPirms 3 dienām
  • its not a fact u broke glass with noice frequency, dislike

    Shokh ErmanovShokh ErmanovPirms 3 dienām
  • Rip headphone

    Kharalel DeleonKharalel DeleonPirms 3 dienām
  • ‘Building worlds biggest air raid siren’ This would be so cool

    Marcus ParkinsonMarcus ParkinsonPirms 3 dienām
  • The gelatin block in 9 months 🤰

    Kevin JoyceKevin JoycePirms 4 dienām

    vraj Patadiyavraj PatadiyaPirms 4 dienām
  • 4:56 rip To my headphone

    Aalok gamer Free modsAalok gamer Free modsPirms 4 dienām
  • this litera;;y broke my pcs speaker no cap

    tech gadgetstech gadgetsPirms 4 dienām
  • That's sweet. But you can hear trains from miles away as well but it's more impressive because this is such a low tone compared

    Joshua ClineJoshua ClinePirms 4 dienām
  • It can destroy my ears too

    DerpOmAnDerpOmAnPirms 4 dienām
  • You can hear train horns 10 miles away.

    kpkndusakpkndusaPirms 5 dienām
  • Not noting what he said but it sounds intresting

    Rickster RamirezRickster RamirezPirms 5 dienām
  • [Cool]

    The night SquadThe night SquadPirms 5 dienām
  • is the power output actually preserved by adding the horn? even though it's only a passive component, the air in the horn should be "harder" to vibrate, which would necessitate the sound source producing more power. if there's any analogy to electrical circuits, a higher impedance with the same voltage will obviously result in a larger power output...

    BalduinBalduinPirms 5 dienām
  • Go higher muncle Rober

    Bobby FlemingBobby FlemingPirms 6 dienām
  • Im learning more from mark rober than school

    l1ghtw0yl1ghtw0yPirms 6 dienām
  • Un gemidazo

    _Pillco__Pillco_Pirms 6 dienām
  • I want someone to fart in the horn

    yxgnormeyxgnormePirms 6 dienām
  • Challenge: Make one of these that can demolish a stone or brick wall...

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  • Are you a School teacher 3:00

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  • For the 1st time shooting the huge air horn I thought RIP headphone users

    Jayden CoultonJayden CoultonPirms 7 dienām
  • Me when I honk the horn

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  • thunderbolt siren horn

    Hamood HabibiHamood HabibiPirms 7 dienām
  • looks like a thunderbolt horn

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  • Holy dog biscuits that is the largest air horn in the world

    Fernando CortezFernando CortezPirms 7 dienām
  • what are you doing step stick 4:05

    notquarkznotquarkzPirms 7 dienām
  • Comon mark let’s hit 18mil

    Kayla BourgeoisKayla BourgeoisPirms 7 dienām
  • 3:04 Harder Daddy

    Antonio RiosAntonio RiosPirms 7 dienām
  • 4:04 am i the only one?

    댕댕댕댕Pirms 7 dienām
  • looks like some dr seuss stuff

    corgii.corgii.Pirms 8 dienām
  • I need this on my Jeep...

    VertisceVertiscePirms 8 dienām
  • :)

    Angel JonguitudAngel JonguitudPirms 8 dienām
  • 08:10 About Tacoma Narrows Bridge: no, that was not resonance, that was aeroelastic flutter. Aeroelastic flutter is not a resonance phenomenon, it is a positive feedback loop. Ask your colleagues at NASA, they will be very familiar with that. :)

    Michael KarnerforsMichael KarnerforsPirms 8 dienām
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  • Like ship horn

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    Juan HernandezJuan HernandezPirms 8 dienām
  • Mark is a thousand times better than my high school science teacher!

    Jason SmithJason SmithPirms 9 dienām
  • 8:05 I was expecting an edit where the girl's just gone and you hear a scream before he runs off camera.

    mercury a2000mercury a2000Pirms 9 dienām
  • thanks for putting miles in km

    Cry LineCry LinePirms 9 dienām
  • 3:05

    GECKO 77GECKO 77Pirms 9 dienām
  • For the glass breaking part you should have brought in the slo-mo guys. Just a suggestion.

    ozfoxarooozfoxarooPirms 9 dienām
  • RIP headphone users

    hghghghghghhghghghghghPirms 9 dienām
  • cameras evolved and got smaller but then mark rober evolved the horn

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  • minecraft use this is the sound effect for pilliger horn

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  • Cowboys be wondering on why there are ship horns blaring or blasting on the Arizona desert, and it was actually just Mark Rober tho.

    Thomas Alt.Thomas Alt.Pirms 9 dienām
  • Rip me I had headphones on

    Sleepy OwlSleepy OwlPirms 10 dienām
  • 4:03 umm....

    Trunks Jr3550Trunks Jr3550Pirms 10 dienām
  • When ur not sure of something,make it large form

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  • That's no orc horn!

    TomásTomásPirms 10 dienām

    Sheilla FigueroaSheilla FigueroaPirms 10 dienām
  • This is the principle of how Lighthouses' and ships' fog horn's work or used to until they got turned off, they were made very low tone so they could be heard up to 20 miles away. Each foghorn had its unique tone and was distinct from others nearby, Trinity House who were responsible for foghorns and originally the manning of lighthouses in the UK turned them off due to GPS Navigation.

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  • Nobody: Someone’s Daughter right now: 4:05

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  • this is the way how siren head made

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  • Ants on the desert be like 👁 🐜 👁

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  • The ending looks funny 9:13

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