World's Largest Horn Shatters Glass

  • Published on:  Wednesday, November 28, 2018
  • 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:




  • Source:


  • Irritated Camel / Roblox Stuff

    Irritated Camel / Roblox Stuff

     7 hours ago

    So a Concorde can cover that 4 km in 11 seconds? Good representation for me I've been wondering for ages

  • *Gacha Elements*

    *Gacha Elements*

     11 hours ago

    it sounds like a ship

  • Christopher Cunningham

    Christopher Cunningham

     13 hours ago

    explain how i'm going to take this to a football game?

  • Asgarali Tanveer ali Haidery

    Asgarali Tanveer ali Haidery

     21 hours ago

    4:08 it looks really wrong bro

  • gamermo


     21 hours ago

    The sound of the horn sou ds like a horn from a ship

  • lion


     23 hours ago

    Bruh he is albert einstein

  • john hauzel

    john hauzel


    I learn more in YouTube (mark rober) than school

    Do u agree

  • Daniel Luke

    Daniel Luke


    Marks the most fun science teacher ever

  • Tan Yao Yang

    Tan Yao Yang


    What would happen if you put this in the most quietest room?



     yesterday +1

    Free replays

  • Mehdi



    When your crush tells you « you’re my best friend »

  • Amanda Fowler-Kummer

    Amanda Fowler-Kummer


    4:34 ohhhh who lives in a pineapple under the sea

  • C4CTU5 ;

    C4CTU5 ;


    4:56 how they made bass boost

  • Extra Cow

    Extra Cow

     yesterday +1


  • Ninja Soul

    Ninja Soul


    Go hiya Marka woba

  • TheGamerBros!!!


     yesterday +1

    Captions: [some cool music]
    Yeah that’s the captions opinion

  • Dr. Bruh

    Dr. Bruh


    Mr beast tried but lack "SCIENCE"

  • Torgy 33

    Torgy 33

     yesterday +1

    My dog was sitting next to me while I watched this, and I have headphones on, and she jumped up

  • KoolSeelz


     2 days ago

    That small "go higher mawk wober" was tha most wholesome part of the video.

  • Melissa Sager

    Melissa Sager

     2 days ago

    Damn u smart