World's Largest Horn Shatters 25 MILLION Orbeez in a pool- Do you sink 3 months ago   10:42

Mark Rober
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: https://portalfb.me/2OG9U7j

Watch the What's Inside video here: https://up-tube.com/upvideo/q9gN1vpQCTL

Here is a behind the scenes video from the day: https://up-tube.com/upvideo/eWVp1vNDqCj

High Speed camera courtesy of https://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.



MUSIC-
0:10- Arrow- Andrew Applepie - http://andrewapplepie.com/
1:08- Dance- Danijel Zambo- https://danijel-zambo.bandcamp.com/
2:00- Kalimba Jam- Blue Wednesday - https://soundcloud.com/bluewednesday/
3:00- New shoes- Blue Wednesday - https://soundcloud.com/bluewednesday/
7:30- Ceral Killa- Blue Wednesday - https://soundcloud.com/bluewednesday/
8:47- Q- Blue Wednesday - https://soundcloud.com/bluewednesday/
9:46 Too Happy to be cool by Notebreak- https://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.



MERCH-
They are soft- https://teespring.com/stores/markrober


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Comments 9661 Comments

Mark Rober
I think it's time to update my car horn... also, Eliza is my spirt animal. I'm on Instagram and Twitter @MarkRober.
Athayazhafir Pribadi
30:45
Stoned *
2:46 *ACT 100*
Russian Gamer
**Shaggy wants to know your location**
It's Tiᴍescapr
Dont understand a word u said in the whole video but love the way it sound 😂😂
GRACE MA
It sounds like the titanic getting ready
Lamech Minga
Very cool stuff thanks for the edgeqq
goldendeadpool
I imagined in my head the ali a intro
Weird Red Thing
*EARTHQUAKES AT SAN FRANCISCO INTENSEFIES*
Charlie Thomas
R.I.P headphone users
Mike mike swag New patek
Thx teacher XD jk
Devonfallout 4
RIP HEADPHONE USERS MY EARS
Bridgette Lopez
Oh I learned alot
V Backup Email
Is this Smarter Every Day or what?
BigBoysClimbOnBigRing
Oh you just created a new mystery for the ppl living in that area. It will haunt them for years. They will make YouTube specials about the strange sound heard on that day.
Elisabeth Hermione Green
Ships have similar horns right?
James Wheeler
6:53 wtf mark
Jacob Brink
Why does it have to be curved? Could it be another shape that goes from small to big, but maybe linearly instead of curvy?
Hypes Gaming
I just subbed
CrimeraRi Bloody
you should of helped mr beast do it
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25 MILLION Orbeez in a pool- Do you sink World's Largest Horn Shatters 3 months ago   07:01

Kevin (aka The Backyard Scientist) and I filled a pool with 25 million waterballs (aka Orbeez) so I could settle an argument about how far you sink if you jump in.

Go watch Kevin's video- https://up-tube.com/upvideo/OQF4QUkCDER

FREE Squarespace trial- http://bit.ly/SquarespaceMarkRober

Thanks to Nathan for the High Speed camera. If you need a High Speed camera to rent for super cheap check him out. Insanely low prices for great gear- http://www.aimed-research.com/



MUSIC-
0:00- Nobody Knows- Andrew Applepie- http://www.andrewapplepie.com/
4:00- Berlin- Andrew Applepie- http://www.andrewapplepie.com/



PLEASE CONSIDER SUBSCRIBING: http://tinyurl.com/MarkRober-Sub


****************************************­

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

CHECK OUT MY CHANNEL: http://tinyurl.com/MarkRober-YouTube

FACEBOOK: https://www.facebook.com/MarkRoberYouTube

TWITTER: https://twitter.com/#!/MarkRober

INSTAGRAM: https://www.instagram.com/markrober/