World's Largest Horn Shatters Glass

Mark Rober
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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: portalfb.me/2OG9U7j
Watch the What's Inside video here: itvid.net/video/video-d9tA1icDPGY.html
Here is a behind the scenes video from the day: itvid.net/video/video-rJIc1iAQdPw.html
High Speed camera courtesy of www.aimed-research.com/. 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 - andrewapplepie.com/
1:08- Dance- Danijel Zambo- danijel-zambo.bandcamp.com/
2:00- Kalimba Jam- Blue Wednesday - soundcloud.com/bluewednesday/
3:00- New shoes- Blue Wednesday - soundcloud.com/bluewednesday/
7:30- Ceral Killa- Blue Wednesday - soundcloud.com/bluewednesday/
8:47- Q- Blue Wednesday - soundcloud.com/bluewednesday/
9:46 Too Happy to be cool by Notebreak- soundcloud.com/notebreak/dubstep-too-happy-to-be-cool

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

They are soft- teespring.com/stores/markrober

I make videos like this once a month all year long while supplies last:
CHECK OUT MY CHANNEL: tinyurl.com/MarkRober-ITvid
FACEBOOK: facebook.com/MarkRoberITvid
TWITTER: twitter.com/#!/MarkRober
INSTAGRAM: instagram.com/markrober/

Scienze e tecnologie

Pubblicato il


28 nov 2018




Caricamento in corso.....

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Commenti 100
Sam Suykerbuyk
Sam Suykerbuyk 36 minuti fa
Mark Robert
ii_ Vixa
ii_ Vixa Ora fa
He teaches BETTER THAN MY TEACHER!!!!!!!!!!!!!!!!!!
Johan Lanozo
Johan Lanozo 4 ore fa
Charles Calvin has the largest horn.
Time Facility
Time Facility 4 ore fa
Stephen Raftery
Is it just me or is that horn lookin kinda THICCC
كوك ستان مرت
Channels like this deserves more and more subscribers
TGXZ _110
TGXZ _110 8 ore fa
Its like the pillager horn in mine craft when they raid
Anime Gamer0777
Anime Gamer0777 10 ore fa
If you don't wanna see / hear the nerdy explaining part Click this👇 4:44
BANANA Invasion
BANANA Invasion 12 ore fa
“Markle wova” 7:59
Swifty Zanda
Swifty Zanda 13 ore fa
The minecraft sheep friker in real life
Tripp Smith
Tripp Smith 15 ore fa
4:56 Minecraft raids be like....
Lān dān sī mã kã bù Léi
6:54 Subtitles: Vmmmmmmmmmmmmmmmmm
Super Dude Man
Super Dude Man 16 ore fa
7:24 yeah I don’t have hammers so I just use children instead XD
•Simply Grace•
He could kill our ears if he wanted to… but seriously if he edited the volume really high, *R. I. P. Mark viewers*
SUPAH MARIO 22 ore fa
That's probably what they use on cruise ships
Antonio Rapeta
Antonio Rapeta 22 ore fa
Mark you should do a video of making the worlds biggest bean bag chair
Mark John Baluyut
Dragos M
Dragos M 23 ore fa
If the sound wave behaves as drawn in this video, then the flared shape is amplifying the sound, trading frequency for amplitude.
Leader of the Cu Clock's Clam
put this horn on a ship
doggonemess Giorno fa
I'm only two years late on posting this, but I don't see it in the comments - the Tacoma Narrows bridge didn't fail due to resonance. It failed due to structural failure from exceeding the limits of elasticity. It's a common misconception that the wobble is from resonance, but it was actually caused by aerostatic flutter. This phenomenon works by pushing the bridge up or down and then when the bridge is moving back, the wind makes the next movement a little larger, creating a feedback loop. When the bridge finally breaks, it isn't because the resonant frequency of the bridge is achieved; it's because the structure couldn't hold up against how much it twisted. Before I get accused of being pedantic (which never happens), yes, aerostatic flutter is a very similar phenomenon to resonance, but the cause of the failure is simply mechanical stress. The difference is this - in the video, he shatters the glass using resonance. To break it like the Tacoma Narrows bridge, you would just twist the glass back and forth until it shattered, which could easily happen long before you managed to twist it back and forth at the resonate frequency. Love your videos! Keep being awesome!
Mr Gween
Mr Gween Giorno fa
Rest In piece ears
mason miller
mason miller Giorno fa
You could of Been a mythbuster
rikgaming YT
rikgaming YT Giorno fa
girls when they see any insect at all: 7:26
Rizwan Shaheen
Rizwan Shaheen Giorno fa
Good work
Khimandrei Carpio
go higher magomovo
B •
B • Giorno fa
4:46 why does he sound identical to andy milonakis
DalekSupreme Giorno fa
NASA engineer builds sonic death ray
Blueberry Cloud
Blueberry Cloud Giorno fa
Who still think is it going to be the next Albert Einstein
alexandreferreira ferreira
Natalie Razo-Gifford
The horn sounded like a ship horn
Xisles Giorno fa
the horn sounds like its saying HMMMMMMMMMM
Phantom matthew
Phantom matthew Giorno fa
Did you actually leave it in the desert?
Keyboy221 Giorno fa
Nice fog horn
catherine carden
It sounds like a ship 🤣🤣😂🤣
Shockwaver gaming
r.i.p headphone users
Gary Mortenson
Gary Mortenson Giorno fa
Rip headphone users
Slim Pickens
Slim Pickens Giorno fa
30 million views and somehow my boyfriend isn't one of them...should I break up with him..?
WestonCraft Giorno fa
Almuz Vreskala
Almuz Vreskala Giorno fa
R.I.P headphone users
Dhanula Kannangara
Dhanula Kannangara 2 giorni fa
What happens if you take oblek (That weird liquid that becomes hard when you punch it) And shoot it with an Airsoft gun/real gun/flame thrower?
vAin0 RBLX
vAin0 RBLX 2 giorni fa
Legends says Alisa is still swinging
LeoMessi2511 2 giorni fa
"Go higher Marka Robo" -14 brain cells
msms47 2 giorni fa
hey mark gf want to uy
Spam oreos
Spam oreos 2 giorni fa
When your village has raid but the village is city but you can still here it
Al Baraa
Al Baraa 2 giorni fa
Yeahhh Science!!
Harris King Camposagrado
It Sounds Like The Titanic.
Jacob Playz
Jacob Playz 2 giorni fa
kevon jones
kevon jones 2 giorni fa
I have idea for u to build that can make U millions .
Ulises Marvels
Ulises Marvels 2 giorni fa
I love how hes going through all this trouble when he could just google it
Michael Avisov
Michael Avisov 2 giorni fa
The babby is like what is he saying. Inventors. A new era
Pahiram Gaming
Pahiram Gaming 2 giorni fa
Looks like titanic
R S 2 giorni fa
Thought this was clickbait,I was wrong.
Isaacs Random Videos
Rose Giles
Rose Giles 2 giorni fa
Someone won’t answer you... Get the horn and screen at them The human being annoying: ok... ok
Steven Scott
Steven Scott 2 giorni fa
4:53 Mickey Rooney: "Fog! Fog!! Where's the fog?" ~ Helen Reddy: "There's not much fog. Few buzzards."
rohit sinha
rohit sinha 2 giorni fa
Anything? Bc
Darlene Carreon
Darlene Carreon 2 giorni fa
SIREN HEAD by the way this is my moms account
HB Jay
HB Jay 2 giorni fa
The largest thunderbolt
Bharath Sewaa
Bharath Sewaa 3 giorni fa
“Go higher Mark Rober” LMAO
B1azingPh03nix 3 giorni fa
Paul W. Klipsch would be proud
inverse square law says if you double the distance, you 1/4 the sound. That's a loud horn! they could use this to clear the riots we are experiencing right now in 2020.
Joanne Santiago
Joanne Santiago 3 giorni fa
Good background music
Shelby's life
Shelby's life 3 giorni fa
I love that little girl
Lucas S
Lucas S 4 giorni fa
R4ZOR ! 4 giorni fa
Federal Signal and Alerting Communicators of America’s: WRITE THAT DOWN! WRITE THAT DOWN!
FBI Kun 4 giorni fa
We're all come here to see the glass breaks
Jerome Cubilo
Jerome Cubilo 4 giorni fa
4:16 am I the only one that sees these or I'm just very dirty
Tiffany Kuo
Tiffany Kuo 3 giorni fa
You’re not the only one.
The cubing cuber
The cubing cuber 4 giorni fa
this reminds me of that one simpsons scene with all those megaphones lined up and bart shouting into it
07AshGreninja Gaming
Jordan Blackburn
Jordan Blackburn 4 giorni fa
I'm in the UK and just heard this horn today
07AshGreninja Gaming
Ducky Bots
Ducky Bots 4 giorni fa
biat horn
Barbara Espino
Barbara Espino 4 giorni fa
that looks like a federal signal thunderbolt horn
CAT BOİ 4 giorni fa
Imagine you installed yor car to this tihng and scaring people
Athena Jensen
Athena Jensen 5 giorni fa
You should do sir Ivan's drop.
gavingtr 5 giorni fa
Is that your tesla model x?
KALLEN KUMPF 5 giorni fa
Omg I haz an idea! Fart intro it
KALLEN KUMPF 5 giorni fa
We goin on a trip to learn about ear drums!
Kartik Shetty
Kartik Shetty 5 giorni fa
Where were you when I was studying scienece
mr.chillio chili
mr.chillio chili 5 giorni fa
ship horn
Pravin Sharma
Pravin Sharma 5 giorni fa
use it underground
Nicholas Hideki Santos
BR_ICKED YT 5 giorni fa
Any one noticed that he was riding a Delorean?
Gaming Life
Gaming Life 5 giorni fa
Anyone wanna hear my alarm? 4:53
Shimozokushichi 5 giorni fa
Imagine this being a flame thrower
Cash Weddle
Cash Weddle 5 giorni fa
who else doesnt know what hes talking about but think its cool
Jacob Harvath
Jacob Harvath 5 giorni fa
My deaf friend heard that
It was a much much more worse then a erarape with headphones on full vilume
gerald liguori jr
gerald liguori jr 5 giorni fa
'' mark a rover ''
John Carter
John Carter 5 giorni fa
Amazing video
Mbak Puput
Mbak Puput 6 giorni fa
imagine going casually through the road and hearing a war horn that sounds like a spinel horn from steven universe
Marlon MacMillan
Marlon MacMillan 6 giorni fa
This guy is SO SMART
nicole peterson
nicole peterson 6 giorni fa
why not connect it to something pleasant, like a Hammond B3? It would have been relatively simple to create a servo for a choral/bell. Stick a simple mic like a Shure SM 7 or beta 58 at varying lengths.
Adah Creek
Adah Creek 6 giorni fa
The other two guys are a ITvid from what's inside
Rish Routhu
Rish Routhu 6 giorni fa
mørt3m ęśt
mørt3m ęśt 6 giorni fa
“Go higher marko robor!”
baby thrower 5000
baby thrower 5000 6 giorni fa
Are u in navada
Majoric Lee
Majoric Lee 6 giorni fa
When u want to learn something this guy is the one he explains everything to u so u get what he means he the coolest person ever
X-M-V 6 giorni fa
"We're two football fields away."
Ole Spiegelenberg
Ole Spiegelenberg 6 giorni fa
Put Morgan Freeman in front it
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