World's Largest Horn Shatters 25 MILLION Orbeez in a pool- Do you sink 1 week 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


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/

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.
Anon ymous
Tela X 😍
DedSec
英語わからないが面白そうなことしてることは分かったゾ…
BluRey BluRey
ƬĦЄ ѦѲƧƬ ƉЄƧѲ˩ΔƬЄ Ƥ˩ΔƆЄ ѲИ ǤѲѲǤ˩Є ѦΔƤƧ ƖƧ ƬĦЄ ѦƖƉƉ˩Є ѲҒ ƬĦЄ ƤΔƆƖҒƖƆ ѲƆЄΔИ.
Polder Jongens
Make it so that it can play different notes
Maenard Paul Adloc
I feel so sorry for the earphone user's
Anna Liza Palis
Whos that baby its cute
Paweł Jackowski
4:51-5:00 that's all
Maya Thompson
You ever just wanna buy something you know you don’t need and will be probably be a hindrance?




This is it
Pete Sampras
This made me HORNY
Aldhiyaa Ulhaq
very good content and I really like the content you make. I always see it
Preston Oliver
You should be a science teacher
Andrew Huh
Mark Rober, can you make a video about how to become a engineer for NASA because I want to become one
killer gamer
I need these horn to put on my truck
Cabo loso
Lol
Reece Baker
Thought this was MR beast not gonna lie but he does stuff like this 😊
Clash Of Trip
I hate to be this person but did you pick up the glass
Emil Nykvist
What is with these iq free people on YouTube
chunky1x
04:06 Sexually suggestive content. XD
ona L
スケールの違い
Add Reply

25 MILLION Orbeez in a pool- Do you sink World's Largest Horn Shatters 1 week 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/

Related Videos