World's Largest Horn Shatters Glass
49,600,070
Published 2018-11-28
Watch the What's Inside video here: • What's inside an Air Raid Siren?
Here is a behind the scenes video from the day: • Tesla vs World's Largest Horn!
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 - 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-c…
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- teespring.com/stores/markrober
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All Comments (20)
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4:59 when my phone gets a notification
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Bart Simpson: "TESTING." He's proud of ya.
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I love how you can take something that I consider to be a bit boring sometimes and make it so entertaining while still having it be educating!
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This is the best explanation of impedance matching.
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if only this dude was my science teacher...
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I fell asleep with YouTube on and just heard BRNNNNRNRNRN
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Watching that glass shatter was so satisfying to watch. I thoroughly enjoyed it.
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from Mark´s dope attitude, knowledge and communication skills a lot of teachers could benefit...from which a lot of kids would like to go to school... and so on...
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So many lizards were traumatized by this experiment.
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Bart Simpson has left the chat
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the material the horn is made of will change the sound too. it has to deal with vibration, sound waves and harmonics. idk the scales thou, sorry. i only could reference bells of brass, iron, steel, copper, nickel or gold even. i would assume it works the same with air horns.
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No one is talking about the jelly abuse weapon
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7:26 when a 9 yr old with a 1$ mic enters the lobby
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Out of all your Designs and Crazy Inventions for this channel, this is my favorite! Great Job! Love this Demo!!!!!!!
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ser chileno y ver este video en español es una maravilla
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This is our rally horn for the raid on Area 51
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That horn is My mom when I am late for dinner
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And now we know how those stories get started about communities hearing strange vibrations and humming sounds and have no idea where they originated from.
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Highly informative and entertaining- thanks Mark! You rock!
