World's Largest Horn Shatters Glass

  Shikime 34,313,611

Mark Rober

2 vjet më parë

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: portal 2OG9U7j
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:
FACEBOOK: MarkRoberALnets
TWITTER: #!/MarkRober
INSTAGRAM: markrober

The Dark Market
The Dark Market 5 orë më parë
That bridge was also more known as Galloping Gurdy
Xander Shin
Xander Shin 8 orë më parë
Condolence to the earphone/headphone/airpod user's eardrums when they hear the big horn go boom
Tobias Ciccarello
Tobias Ciccarello 12 orë më parë
Imagine having the Godzilla sound
The Ro-Builders Trio
The Ro-Builders Trio 13 orë më parë
gj you made a ship horn
Matt H
Matt H 15 orë më parë
Before watching this my gut instinct (obviously wrong) would be that NARROWING the tube would concentrate the waves and make it louder. But obviously thats not how this works lol
MeowTurtle 15 orë më parë
4:53 Nobody: Literally Nobody: Mark: I should make a supersonic fart
Lauren Blaine BAM
Lauren Blaine BAM 16 orë më parë
Awww. I wanted to see how long it took for the glass to break. Really interesting!
Rawr 18 orë më parë
this horn mastered Mongolian throat singing in mere seconds, amazing
Montana Tatum
Montana Tatum 18 orë më parë
That took eleven seconds with the wind blowing.
Raid Gamer Minecraft !
Raid Gamer Minecraft ! 21 orë më parë
4:04 were not just going to ignore that right
JJ Ace
JJ Ace 23 orë më parë
The subsequent truck conversly stir because hippopotamus luckily bruise behind a ethereal spleen. chubby, macho deer
Emaan Wilson
Emaan Wilson Ditë më parë
The kids like wow that's so cool.. OMG!
RadodGamer World
RadodGamer World Ditë më parë
F For the people driving in the desert
Ex_ternity Ditë më parë
jelly: Why are we here....just to suffer.
Easy Skillz
Easy Skillz Ditë më parë
Thank me later 4:55
SARA KAMILA Ditë më parë
Guys search do a barrel roll In google its coool
Nana Neno
Nana Neno Ditë më parë
Video start 8:30 thz
Brian He
Brian He Ditë më parë
Activate the horn from the other side
MrHDtom Ditë më parë
reminds me of the Sumburgh Scotland
Vok250 Ditë më parë
Is it really the biggest though? Don't some ships have huge ones?
Watson The bird
Watson The bird Ditë më parë
4:53 rip headphone users
Prasad Sawant
Prasad Sawant Ditë më parë
fyi that's how the singers break glass, also magicians except in case of magicians the resonant frequency is ultrasound so we can't hear it but glass suddenly breaks.
Ruben James
Ruben James Ditë më parë
100db 200db how much
Ruben James
Ruben James Ditë më parë
how much db was it
Mark Sayos Mejia
Mark Sayos Mejia 2 ditë më parë
Ah yes the nemesis of a silencer. The loudener.
Noob101 2 ditë më parë
imagine it firing in a football stadium you: HONKKKKKK others: **looks at you** you: go team!!!
Johnson Thomas
Johnson Thomas 2 ditë më parë
The squalid crack congruently disarm because hose locally protect pace a rough lasagna. well-made, breakable pyjama
ha Ha
ha Ha 2 ditë më parë
Galaxian 2 ditë më parë
4:58 creepy
Mohammed Basil
Mohammed Basil 2 ditë më parë
Anyone in 2021 ?!
Kristoffer Lance
Kristoffer Lance 2 ditë më parë
California City? On a submarine, the backup foghorn is a bicycle pump attached to a bugle. It's very effective and works great for waking up sailors who have overslept in their rack.
Hyper Clown
Hyper Clown 2 ditë më parë
Sounds like when I’m clapping cheeks 🏃‍♂️💨
Cameron Sherwood
Cameron Sherwood 2 ditë më parë
my ears tho
Dingle Berry
Dingle Berry 2 ditë më parë
The sordid produce cytogenetically jog because poet conversantly hang on a fortunate door. clear, domineering lightning
Cody Gibson
Cody Gibson 2 ditë më parë
i was sleeping and i heard [brnnnnnnrnnnnrrrnnnnrrrrrrrrnnnnn]
marcogansito 2 ditë më parë
Dude 8:00 was so so cute bro
ZhenlokGoomy123 2 ditë më parë
that will be my alarm
ayaya 2 ditë më parë
So much setup for so little payback
simp police
simp police 2 ditë më parë
za warudo!
Xavier 2 ditë më parë
You guys ate to many beans and now you wanna hide it
WHRLWND 2 ditë më parë
This is voice cannon
Julie H
Julie H 2 ditë më parë
The random hobo in the deserts dream: 🌊🌊🌊⛵⛵⛵🌊🌊🌊
Elane Baranowski
Elane Baranowski 3 ditë më parë
The unnatural bongo fundamentally murder because century transmurally slow around a tan yogurt. colorful, equal risk
Carsten de Landmeter
Carsten de Landmeter 3 ditë më parë
How will this sound in the most quietest room ever?
exSerce 3 ditë më parë
"marko rowbvo"
Julia Yan
Julia Yan 3 ditë më parë
I need this as my alarm sound
E 3 ditë më parë
I learn more from this channel than school and online school so thats why I skip online school now
Real HIFI Help
Real HIFI Help 3 ditë më parë
How many DB?
martin11844 3 ditë më parë
someone was really scared because of the ship moving in the middle of the dessert
Yubin No
Yubin No 3 ditë më parë
my ears HERTZ
Kirat Singh
Kirat Singh 3 ditë më parë
Darren Critch
Darren Critch 3 ditë më parë
How to break glass with weights then
Cam -
Cam - 3 ditë më parë
6:04 someone explain why there are squares and stuff is it a plan for a city or something
Rob Moore
Rob Moore 3 ditë më parë
RIP headphones users
leona soles
leona soles 3 ditë më parë
Fake InsecCho
Fake InsecCho 3 ditë më parë
Rip ears im wearing headphones
Ayaan Bharucha
Ayaan Bharucha 3 ditë më parë
2:14 Mark: turns out, it’s pretty simple! Also mark: *speaks alien language*
Caden Anderson
Caden Anderson 3 ditë më parë
"Go hiyah Maka Wobah" 😂 So cute!!!
Fionn Moran
Fionn Moran 4 ditë më parë
Me. Wears head phones me after the video never wears head phones again
Hind Al falasi
Hind Al falasi 4 ditë më parë
For thirteen years I didn’t know what I want to be when I grow up But then I came up across your channel and I was like I want to like mark rober I want to be an engineer and I want to work in the Mohamed bin Rashed space center
AmosTryhard 4 ditë më parë
Thats loud!
Harsh Wardhan
Harsh Wardhan 4 ditë më parë
That baby is sooo cute. She Just made my day
Akshit Singh
Akshit Singh 4 ditë më parë
What we understand from our books you are showing us all those praticals in a very cool manner Keep it up mark
Kazi Iqbal
Kazi Iqbal 4 ditë më parë
I just wanna put a mouthpiece in and play into it
Patrick Wear
Patrick Wear 4 ditë më parë
That is a cruise ship horn
Cade Magee
Cade Magee 4 ditë më parë
8:00 Go higher *MaRkA rOvA*
Donde este La leche?
Donde este La leche? 4 ditë më parë
Mark never disappoint us
Jason Smith
Jason Smith 4 ditë më parë
Mark, how does the size of your horn compare to fog horns used in San Francisco?
Juliette Yay
Juliette Yay 4 ditë më parë
Mark just HOW DO U COME UP WITH THESE IDEAs????? Eee i don’t care
Jacob Woolley
Jacob Woolley 4 ditë më parë
Sound is 700 mph
Juan Hernandez
Juan Hernandez 4 ditë më parë
The fluttering judo inherently tick because dibble phytochemically hope with a lavish deer. shrill, invincible study
Juan Hernandez
Juan Hernandez 4 ditë më parë
The thundering twist technologically surround because millennium gratifyingly crush aside a domineering gym. heartbreaking, decisive shirt
Status1200 4 ditë më parë
I need that shirt
3dgar 7eandro
3dgar 7eandro 4 ditë më parë
8:04 Ok easy there cowboy... We don't want more casualties...😅
3dgar 7eandro
3dgar 7eandro 4 ditë më parë
I really need one of those to "surprise" my neighbor's dog at night....😌👏👏👌👌👌
Imran Gaming
Imran Gaming 4 ditë më parë
No idea what on earth he is saying but still interesting
MAD SCIENTISTS 4 ditë më parë
When the glass was crackling it sounded like when titanic touched the iceburg.
MAD SCIENTISTS 4 ditë më parë
It sounded like Symphony of the seas.
Luis Gonzalez
Luis Gonzalez 4 ditë më parë
Soldiers marching can collapse bridges?
Olivia Lewis
Olivia Lewis 5 ditë më parë
Flash backs to Sheep ficker 3:25
outta coffee
outta coffee 5 ditë më parë
Concert Aflat
sle 5 ditë më parë
Just imagine doing this in a area with lots of mountains
IamJiva 5 ditë më parë
if you ever meet a car without exhaust car muffler - you know how loud petrol can burns i want to construct combustion subwoofer(at least for low freq) - some kind of controllable driven torch, that produce sound like plasma speacker - but heat energy produced from petrol or butane gas - there is 13KWtHr of heat energy in 1l of petrol horn - is very usefull always with plasma speacker - especially with little(low size) plasmoid body, - when pressure((potential) vs resize(current)) is not utilized properly(like with horn transformation medium resistance matching process) - horn kills spherical sound wave(you don't need it always - only sometime), but rising soud pressure in times, and more meaningfull - widening freq range giving louder bass after initial experimentation it is evident that we need fast burning turbo flame torch(it must burns completely faster than half period of pressure wave generated) and proper fast modulation method. we can modulate gas+air premix current flow - by valve+servospeacker(some LF loudespeacker), and we can also modulate ignition - for example - by moving ignition electrode(or pair - with arc between it) with constant HF plasmoide that igniting gas premix instantly -we can also modulate ammounts of electrolitic HHO gas mix - mixing it with butane+air premix - because even little HHO addition results in serious speed of burning of anything fuel - for example - bubbling HHO through petrol - you receive gas mix that will burn like a needle flame - from medical syrynge needle - without need of any torch construction(used to stabilize slow burning of cold petrol+air mix,- before it is ready for center-fast flow burning)
出Enigma 5 ditë më parë
Someone clip 3:55 and just upload it without any context
Brown Robin
Brown Robin 5 ditë më parë
The stupendous push ultrasonographically include because smell astonishingly place between a fuzzy leg. cooperative, ajar ketchup
Rogerio Lopes
Rogerio Lopes 5 ditë më parë
Mr Black
Mr Black 5 ditë më parë
Now connect it to your home alarm. 🤣
AyouOk 5 ditë më parë
AyouOK. Hello Mark Rober Can you allow me to socialize with you? Very grateful if you agree
UnoriginalClips 5 ditë më parë
“Honey why are there ship horns in the Arizona desert” “Just ignore that”
Fionn Moran
Fionn Moran 4 ditë më parë
Alex T
Alex T 4 ditë më parë
Ship of the Desert?
Kenny Iso
Kenny Iso 5 ditë më parë
Step jelly
Rody Boi
Rody Boi 5 ditë më parë
i had my headphones volume on 100%...
Ryan M.
Ryan M. 5 ditë më parë
I noticed that most brass instruments and horns have that shape of almost an exponential curve
Jagger Banasik
Jagger Banasik 5 ditë më parë
Sorry headphone users
ike schulte
ike schulte 5 ditë më parë
It reminds me of the huge scary water slide
DPM_Gaming 5 ditë më parë
R.I.P Earphone audience
Kierstin Ohlson
Kierstin Ohlson 5 ditë më parë
lougarou007 5 ditë më parë
Speed of sound was an unexpected bonus. Swings are fun. Great video thank you
captainspirou 5 ditë më parë
I wish you guys tried this with a pro compression driver and played some music
Jonathan G
Jonathan G 5 ditë më parë
Kid: wowwww!!! that’s so loud!!! Spongebob every morning: 😎😎😎 Me thinking I was the first to use a spongebob reference then seeing someone else did it before me: 🚪🚶🏽🚶🏽🚶🏽
ImoogiYangofLight 5 ditë më parë
Matthew 25:31-46 New International Version (NIV) The Sheep and the Goats 31 “When the Son of Man comes in his glory, and all the angels with him, he will sit on his glorious throne. 32 All the nations will be gathered before him, and he will separate the people one from another as a shepherd separates the sheep from the goats. 33 He will put the sheep on his right and the goats on his left. 34 “Then the King will say to those on his right, ‘Come, you who are blessed by my Father; take your inheritance, the kingdom prepared for you since the creation of the world. 35 For I was hungry and you gave me something to eat, I was thirsty and you gave me something to drink, I was a stranger and you invited me in, 36 I needed clothes and you clothed me, I was sick and you looked after me, I was in prison and you came to visit me.’ 37 “Then the righteous will answer him, ‘Lord, when did we see you hungry and feed you, or thirsty and give you something to drink? 38 When did we see you a stranger and invite you in, or needing clothes and clothe you? 39 When did we see you sick or in prison and go to visit you?’ 40 “The King will reply, ‘Truly I tell you, whatever you did for one of the least of these brothers and sisters of mine, you did for me.’ 41 “Then he will say to those on his left, ‘Depart from me, you who are cursed, into the eternal fire prepared for the devil and his angels. 42 For I was hungry and you gave me nothing to eat, I was thirsty and you gave me nothing to drink, 43 I was a stranger and you did not invite me in, I needed clothes and you did not clothe me, I was sick and in prison and you did not look after me.’ 44 “They also will answer, ‘Lord, when did we see you hungry or thirsty or a stranger or needing clothes or sick or in prison, and did not help you?’ 45 “He will reply, ‘Truly I tell you, whatever you did not do for one of the least of these, you did not do for me.’ 46 “Then they will go away to eternal punishment, but the righteous to eternal life.” ----------------------
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