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How does a whip break the sound barrier? (Slow Motion Shockwave formation) - Smarter Every Day 207 (Patreon)

Published:
2018-12-28 18:42:35
Imported:
2026-06
Tags:

Content

Behind the Scenes: https://youtu.be/3HABgm-UUi0

Download Skunkworks! http://www.audible.com/Smarter 

Click here if you're interested in subscribing: http://bit.ly/Subscribe2SED ⇊  Click below for more links!  ⇊

April Jennifer Choi is a Mechanical Engineer and Professional Whip Artist from Peoria, IL. She has a Master's Degree in Computational Fluid Dynamics as well as several Guinness World Records in Whip Cracking. April is also a well known Fire Performer and you can check out what she does on Social Media through these links.

www.instagram.com/withoutshade86/

youtube.com/c/AprilJenniferChoi

www.facebook.com/AprilJennChoi/

~~~~~~~~~~~~~~~~~~~~~~~~~~~~

GET SMARTER SECTION

The awesome German Paper:

https://link.springer.com/article/10.1007/s001930050093

University of Arizona paper:

http://www.e-kaczor.net/keiko/whip.pdf

History of Shock waves: 

https://books.google.com/books?id=PmuqCHDC3pwC&pg=PA69&lpg=PA69&dq=otto+lummer+whip&source=bl&ots=odJCjhXq1g&sig=ByriDEpT8KJ-9Vj-iUijGC-cKWg&hl=en&sa=X&ved=2ahUKEwjx-O_1nL7fAhXtYt8KHWmzAU0Q6AEwCXoECAIQAQ#v=onepage&q=otto%20lummer%20whip&f=false

~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Tweet Ideas to me at:

http://twitter.com/smartereveryday

I'm "ilikerockets" on Snapchat.

Snap Code: http://i.imgur.com/7DGfEpR.png

Smarter Every Day on Facebook

https://www.facebook.com/SmarterEveryDay

Smarter Every Day on Patreon

http://www.patreon.com/smartereveryday

Smarter Every Day On Instagram

http://www.instagram.com/smartereveryday

Smarter Every Day SubReddit

http://www.reddit.com/r/smartereveryday

Ambiance and musicy things by: Gordon McGladdery did the outro music  the video.  

http://ashellinthepit.bandcamp.com/

The thought is it my efforts making videos will help educate the world as a whole, and one day generate enough revenue to pay for my kids college education. Until then if you appreciate what you've learned in this video and the effort that went in to it, please SHARE THE VIDEO!

If you REALLY liked it, feel free to pitch a few dollars Smarter Every Day by becoming a Patron.

http://www.patreon.com/smartereveryday

Warm Regards,

Destin

Disclaimer:

“Information related to UAH contained in this video is subject to change by the appropriate officials of The University of Alabama in Huntsville without prior notice. Material and information in this video do not serve as a contract between The University of Alabama in Huntsville and any other party and do not serve as an endorsement of any paid sponsor of this video.”

Files

How does a whip break the sound barrier? (Slow Motion Shockwave formation) - Smarter Every Day 207

Behind the Scenes: https://youtu.be/3HABgm-UUi0 Download Skunkworks! http://www.audible.com/Smarter Click here if you're interested in subscribing: http://bit.ly/Subscribe2SED ⇊ Click below for more links! ⇊ April Jennifer Choi is a Mechanical Engineer and Professional Whip Artist from Peoria, IL. She has a Master's Degree in Computational Fluid Dynamics as well as several Guinness World Records in Whip Cracking. April is also a well known Fire Performer and you can check out what she does on Social Media through these links. www.instagram.com/withoutshade86/ youtube.com/c/AprilJenniferChoi www.facebook.com/AprilJennChoi/ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ GET SMARTER SECTION The awesome German Paper: https://link.springer.com/article/10.1007/s001930050093 University of Arizona paper: http://www.e-kaczor.net/keiko/whip.pdf History of Shock waves: https://books.google.com/books?id=PmuqCHDC3pwC&pg=PA69&lpg=PA69&dq=otto+lummer+whip&source=bl&ots=odJCjhXq1g&sig=ByriDEpT8KJ-9Vj-iUijGC-cKWg&hl=en&sa=X&ved=2ahUKEwjx-O_1nL7fAhXtYt8KHWmzAU0Q6AEwCXoECAIQAQ#v=onepage&q=otto%20lummer%20whip&f=false ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Tweet Ideas to me at: http://twitter.com/smartereveryday I'm "ilikerockets" on Snapchat. Snap Code: http://i.imgur.com/7DGfEpR.png Smarter Every Day on Facebook https://www.facebook.com/SmarterEveryDay Smarter Every Day on Patreon http://www.patreon.com/smartereveryday Smarter Every Day On Instagram http://www.instagram.com/smartereveryday Smarter Every Day SubReddit http://www.reddit.com/r/smartereveryday Ambiance and musicy things by: Gordon McGladdery did the outro music the video. http://ashellinthepit.bandcamp.com/ The thought is it my efforts making videos will help educate the world as a whole, and one day generate enough revenue to pay for my kids college education. Until then if you appreciate what you've learned in this video and the effort that went in to it, please SHARE THE VIDEO! If you REALLY liked it, feel free to pitch a few dollars Smarter Every Day by becoming a Patron. http://www.patreon.com/smartereveryday Warm Regards, Destin Disclaimer: “Information related to UAH contained in this video is subject to change by the appropriate officials of The University of Alabama in Huntsville without prior notice. Material and information in this video do not serve as a contract between The University of Alabama in Huntsville and any other party and do not serve as an endorsement of any paid sponsor of this video.”

Comments

Petja Hartikainen

It's amazing how phenomena like this are still full of mysteries. All of the individual components of this research have been around for a long time already. Nobody just ever put them all together like this. And suddenly everything becomes clearer and only after your research can humanity start using this information in other engineering projects. Mind. Blown.

Jeff Dzado

I commented on an earlier video here as well! SlowMo Guys just clocked glass breaking at Mach 4.2! Slow-mo Schlieren opportunity!

Jeff Dzado

It makes sense that the whip travels faster than the speed of sound before it reaches full extension! If not, the whip would likely be difficult to crack (sometimes it wouldn't be going fast enough when at full extension).

Steve

Destin, I was left amazed by this video in so many ways. I've been watching your vids for years, and you've gotten better & better at presenting complex information in a succinct, scientific way that's digestible by laypeople. I continue to be impressed by you. Also, the network of professionals you collaborate with has grown so much. You are awesome, and just so blessed. Alright, I'll stop gushing now, lol.. keep up the great work, man. :)

Tyson King

3 or 4 years a go, I went to a buddies house with 100+ feet of paracord, and we sat for just shy of 23 hours and braided our own bull whips. I thought, after making one of the things, I had a pretty good understanding of them, I was wrong and my mind is blown. Thanks for your hard work putting this video together, and thank you for the reminder to read Skunkworks, it’s next on my list after I finish the last two Enders Game books (strong recommend)

Flynn Smith

This was fantastic. My mind was racing seeing the loose end shockwave in comparison to the knotted end. Amazing something so old and seemingly simple can yield so much mystery and science. Also SKUNK WORKS! Yes! I highly recommend this book to any Smarter Every Day or NDQ fan.

Paul Pesheev

Everything about this video is perfect =)

Michael Bartmess

Please advise if you publish a paper about your whip motion analysis

Phil Moyer

Destin, back in the 80s I started an Internet mailing list called skunk-works. This led to many engineers from Palmdale, Edwards, and Dryden joining the list to discuss the Blackbirds, and led to my visit to Dryden, my 18 hours in the SR sim, and my standing under the SR-71B with JP-7 dripping all over me. I still have the Dash-1 flight manual they gave me. Thanks for showing the A-12! And, of course, the whip was amazing!

Anthony Tamalonis

Amazing video, seriously one of the best in a while (that said, I subscribed on poop splash, so yeah). Any tips on DIY Schlieren? Is mirror diameter a huge factor? My results have been so-so with an 80mm (3") mirror, though it only cost $20. Can double the diameter for $70, but it's hard to tell what my limiting factor is between my light source, camera, and other factors. Keep it up!

Krzyś Jagła

You should thoroughly build an whip designed by guy named chuck hilliard. His whip is much simpler in turns of explaining the principles because is a piece of rubber and a string, so the energy of a rubber bands is simpler to calculate and the string is a uniform in size and weight. This whip will also be much more recurrent because you can stretch it to the same length and it will be create same force each time.

Sven Leuschner

Hey Destin, this video reminded me of another video I found remarkable. <a href="https://www.youtube.com/watch?v=oo0zndgT4qU" rel="nofollow noopener" target="_blank">https://www.youtube.com/watch?v=oo0zndgT4qU</a> In this there is a giant chain-whip laying an a street. A man makes a whip motion and starts walking away from the rest of the chain, while the wave moves through the long chain... this charges the whip and makes it crack really powerfull. Maybe it's something worth investigating?

Nick Vahalik

This also explains the painful lashing from hoodies while jogging! Those little suckers hurt when they whip around and hit your face!

Chris K

i wonder if doing schlieren from different directions, focused at the same point, will give you much better data, or just somewhat better data. it would go 3D then, right?

Bay9 Xin Engst Han

Intentional or not, the easter eggs found in ur films are marvelous, from nail polish to 3:27 for example, leading to twinkling tar. Is the double image of the whip due to a extra space between the mirror danger zone or some intentional marginally out of phase method of extracting more data in a single recording?

goiycenter#0

Love the channel! In this video, I can't help but think that the breaking of the sound barrier (or the shock-wave itself) helps to accelerate the very end of the whip? Maybe I am not asking that correctly, Is it possible that the force from the shock-wave play a part (aid) in the final accelerate of the tip of the whip?

Wendell Adams

This was a great video. Interesting to see the conservation of momentum. Kind of like fly fishing.