Two Vortex Rings Colliding in SLOW MOTION - Smarter Every Day 195

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This took 4 years to recreate. 12 Hour edit here: https://youtu.be/Cm9l8-qngjM Please subscribe if this video earned it: http://bit.ly/Subscribe2SED Get a free audio book! http://www.audible.com/Smarter ⇊ Click below for more links! ⇊ High Resolution images will be provided to the Patrons of Smarter Every Day at: https://www.patreon.com/posts/high-quality-19568610 http://www.patreon.com/smartereveryday If you’d like to support big adventures like this, consider becomingbeing a Patron! I’ve been chasing this problem for over 4 years. The 12 hour edit chronicles the entire process after David Linderman and myself started working on it in earnest. https://youtu.be/Cm9l8-qngjM People don't tweet me their thoughts about videos enough. I'd love to hear from you. http://twitter.com/smartereveryday 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 Song “Rings in Rings in Rings” by Gordon McGladdery of A Shell In The Pit Listen to it on Spotify: (It helps https://open.spotify.com/track/5Itp2wFFmI6xtIAc54F1rM All A Shell in the Pit music available at: https://ashellinthepit.bandcamp.com/track/rings-in-rings-in-rings http://ashellinthepit.bandcamp.com/ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ GET SMARTER SECTION A Vortex Ring is also called a Toroidal Vortex https://en.wikipedia.org/wiki/Vortex_ring Original Research Paper by T. T. Lim & T. B. Nickels (Published in Nature 1992) http://202.118.74.190/~elizabeth/Docs/34_Instability_Head-on%20collision_of_large_VR.pdf Governing Equations of Fluid Mechanics http://www.eng.auburn.edu/~tplacek/courses/fluidsreview-1.pdf Numerical Analysis of this phenomena http://fluid.itcmp.pwr.wroc.pl/~znmp/Publikacje/JP_2014_Kudela_Kosior.pdf Interesting Research Papers on Vortex Ring Reconnection https://pdfs.semanticscholar.org/3721/e67f5bf8e88a47e2241058c7e3cc064c5e8a.pdf Other Videos created by Dr. T T Lim http://me.nus.edu.sg/dept/limtt/videogallery.html Flow Visualization, A Book by Dr. T T Lim https://www.amazon.com/Flow-Visualization-Techniques-Examples-Second/dp/1848167911/ref=mt_hardcover?_encoding=UTF8&me=&qid=1529505335 Why we typically don’t talk about angular momentum in fluids. https://physics.stackexchange.com/questions/127712/why-dont-we-talk-about-angular-momentum-at-all-in-fluid-mechanics We used a computer controlled cylinder to pump fluid behind a rubber membrane to fire toroidal vortices out of the vortex cannons. We fixed one of the vortex cannon in a stationary position, and used a multi-axis microscope stage to align a second cannon to it… which sounds incredibly easy, until you realize that DYE density was an experiment all on its own. If the density of the dye mix was light than water, the vortex would go up. If the dye was more dense than water the vortex would fall. We had to overcome SO MANY VARIABLES to overcome and we basically spent about 4 hours figuring each variable. Water/dye temperature differential Water turbulence Water turbidity (cloudiness or haziness of a fluid) How to reset the aquarium Cannon Spacing Cannon Nozzle Cannon Shape Dye homogeneity in the vortex itself The piston displacement volume The piston stroke speed Rubber diaphragm tension, would make one side fire faster than the other. Water or air to drive diaphram? Firing speed (too slow and they drift, too fast and turbulence tears apart secondaries) We did a complete redesign of the cannon 3 different times. The Dye loading method was changed several times At times We tried to maintain negative pressure on the cannon chamber… we also tried to put shutters on the front of the muzzle. Ultimately I decided it was ok to live with dye dripping out of the front. We had to premix the dyes and eventually we got there. It got to the point where we didn’t even really know what success looked like and always thought we were there. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The thought is 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 #smartereveryday #vortex #fluiddynamics

Comments from Youtube

Jeremy Adams : What's crazy is 30 years from now someone will probably watch the phantom footage and say wow that was filmed on a potato!

WuzNab : My last 2 brain cells meeting.

Suisei Uchūno : Im very captivated by 4:23

Fishum : 3 years of painstaking work for us to go "woah nice" then go watch something else.

Bobby Duke Arts : Dude, that was incredibly beautiful

Power Zhao : It took them 4 years to reproduce results of Lim and Nickels reported 26 years ago! Indeed it’s difficult to publish something on Nature...

oskr93 : Hi, this is extremely interesintg. I would like to know if possible: -The number of outer rings coming out of the collision. -Do the numbers of rings vary with collision speed/velocity of injection of fluid, or density of fluid? Your work here is truly on another level, I just had the crazy idea of aplying the most basic for of Cymatic unduction to the pumps, would a fluid vibrating a some specific frequency affect the most simply energy form projected in the video? Many Thanks for pursuing this and cheers to more. Is there an email to contact your group?

Collin Vinson : How is this disliked at all? Its great they produced a better visual recreation of a scientific mystery.

Arnold Anderson : Many years ago I did some research on thermoelastic effects with concentric discs. One unexpected effect we found was that the many round hot spots that formed always were a prime number. Varying condition we got from 3 to 23 evenly spaced spots. I would like to know what number of ring spots you generated, and what influenced the number of these rings.

BoGeun Kim : Thanks for watching this video .... what a video it is....!!!

The Chubby One : That is going to work 4:20

B S : Perfect for the opening credits of a James Bond movie.

RonuPlays : It looks like the particle collider from Spider-Man: Into the Spiderverse

Practical Engineering : This is so awesome. Congratulations on getting it to work. What a video!

PackuMira : this looks like scenes from the movie Arrival 4:22 was my favourite one but there were many attempts that didn't work but still loiked beautiful like 3:03 and 3:36

Ian Burns : Something that would be useful for analysis, if you illuminate with polarized light and then film with a polarized filter. The diffraction will show up, and that will give more data. Especially if you use two cameras, so you can turn it into a 3D image.

jim jim : this might be the reason for tornadoes ?

John Farris : I've heard that a ring or vortex is the most aerodynamic shape there is. I can't prove it other than the vortex always twist from the inside out where there is more surface area.

Ferrariman601 : “All you gotta do is refill the tank and give it another shot.” You just won the internet, Destin.

Dustin Harris Affordable Perfections Remodeling : Besides all the cool things you guys found out by doing this experiance..now do an experience on how much your water bill was for 3 years for filling up so many times!!

Miguel Lavoie : Water is great at transfering energy. The dye circles hits at equal amounts an with water Newton's 3rd law does not apply the same way. So this is the irresistible force paradox unstoppable force meets a immovable object. So the 2 blobs must move outwards causing an area of low pressure making a contrail type spin and the direction of the spin is dicated by where you are in relations to the equator. Like flushing of a toilet.

Joey Splats : Do you ever get a chance to see your family?

Mister Waz : I'm no scientist but this video makes me ponder if the universe was made in such a manner. The way how to similar fluids, pressures, whatever you'd like to call em' collapse on eachother.. Seeing the equal distributions expand out representing the aftermath of the Big Bang. Sending all the forming clusters expand outwards in different directions, just to slow down overtime and implode on itself. I'm a pleb lol just figured I'd share my thoughts. Epic video m8

Schizhoe • : *accidentally makes a black hole*

Elizabeth Nash : Arrrgghhh! This is SO cool! I want to do this!!! I have questions.. I need answers... Like, why did you get TRIPLET exterior rings on the 90 deg.(?) axis, or basically, dead center thru the thing, at the east/west axis, on some of your successful attempts, while all of the other rings were singles? And, why were some doubles, on the same attempts along with singles? (I'm saying single/double/triplets meaning the outer rings coming off the main were tightly grouped together)..... does any of that make sense? -- I went back and frame by framed it... at 4:52, there's a good example of what I'm talking about. It shows a few instances of triplet formation, intersperced with singles.... And at 5:15, there's a really clean shot of evenly spaced singles on the entire ring.... ~~~thank you for sharing all your hard work with us, I learned about something entirely new, and THAT is saying a LOT! (because I'm a nutcase information sponge, LoL) Wish I could try something like this... but I wouldn't even be able to afford the fish tank, let alone all of the other stuff.. :(

A T : Big bang theory. How our universe started.

MxM Nutt : That... that’s one of the most beautiful things I’ve ever seen

redmond day : If the vortexes were propelled symmetrically i guarantee they would form the rings symmetrically also. SCIENCE. FACT.

LeiosOS : Man. I am basically researching this in superfluids (numerically). It's super cool (both literally and physically). Let me know if you want to make a video on something like that. I would love to work with you on it!

Steve Bickle : I wish someone would create a live wallpaper of this I could have on my home or lock screen! - AnDroid

Samantha Monaghan : Science :D Hypothesis, experiment, document Nice job

Omer D : I have an idea on why the secondary rings face out (if you can follow): The vortex rings, if you take a cross section, are rotating, so if you measure the motion of a point on the inside, it goes forwards, out, backwards, and back in. When the two rings combine and the dye clumps up in those "nodules," the "forward and out" motion pulls dye from the center of the nodule outwards and starts the motion pattern of another ring. Also, great effort in making the video!

Jim Bohn : your mystery question is likely solved by the laws of gravity, and why water spirals in relation to the rotation of the earth... do this test in zero G maybe?

BizMarkie91 : So you spend years trying to recreate this beautifully, and we all get to sit here and watch the result for free without doing any work towards it at all? Awesome. Thanks for sharing this with everyone. Amazing.

GrKl30 : Seems the outer rings are created by what you call the low/high pressure at the end of the video: low pressure points create fluid to be 'pulled' in. But too much; this creates high pressure points. These high pressure points keep the initial ring inertia towards the outside. This high pressure is thus pushing towads the outward of the initial ring, resulting in secondary rings. Just like you push in your tubes to create your two vortexes. Hope my imperfect english is understandable. Thanks, great video and work!

Vamp Lover : Big bang theory creating multiple galaxies R what U'r seeing with the secondary circles

Thavish Chetty : Jeice and Burter: Purple Comet Attack

zedmelon : 4:22 Jellyfish (disappointed SpongeBob and Patrick were omitted)

FR0ZENxTUNA : *When YouTube recommendation is on point*

Mohit Deo : Needs to be said but instead of refreshing you can just hit '0'

Brian Adair : Jet contrails have a similar phenomenon. The wingtip vortices downstream, given the right conditions, will flip and form toroids normal the the original flow.

Victim : Thanks Destin, this is the video that finally made me a patreon supporter, you’re my first!

wujozbujo : It's beautiful, inspiring, awesome, mindbending... I'm lost for words...some of your videos leaving me speechless. 👏

SmarterEveryDay : We used a computer controlled cylinder to pump fluid behind a rubber membrane to fire toroidal vortices out of the vortex cannons. We fixed one of the vortex cannon in a stationary position, and used a multi-axis microscope stage to align a second cannon to it… which sounds incredibly easy, until you realize that DYE density was an experiment all on its own. If the density of the dye mix was lighter than water, the vortex would go up. If the dye was more dense than water the vortex would fall. We had to overcome SO MANY VARIABLES and we basically spent about 4 hours figuring each variable. Water/dye temperature differential Water turbulence Water turbidity (cloudiness or haziness of a fluid) How to reset the aquarium Cannon Spacing Cannon Nozzle Cannon Shape Dye homogeneity in the vortex itself The piston displacement volume The piston stroke speed Rubber diaphragm tension, would make one side fire faster than the other. Water or air to drive diaphram? Firing speed (too slow and they drift, too fast and turbulence tears apart secondaries) We did a complete redesign of the cannon 3 different times. The Dye loading method was changed several times At times We tried to maintain negative pressure on the cannon chamber… we also tried to put shutters on the front of the muzzle. Ultimately I decided it was ok to live with dye dripping out of the front. We had to premix the dyes and eventually we got there. It got to the point where we didn’t even really know what success looked like and always thought we were there.

Weekday PositiviTEA : This is so cool! Got such inspiration from this☀️

BISWAJIT MANDAL : Distance between you and me could be more than 10 thousand kilometres, but your work, your commitment, your word have touched my heart. Today you have changed my thinking and motivated me to do something. You and your team did a great job👏👏 congratulations to your successes. Thank you

Linkon greentech : Now I do understand why math is so important though I'm very weak in it otherwise I'll solve lots of mystery of nature 😊.

chuckIII dee : Why do the colors never mix fully? I am very new to fluid dynamics. i don't see why the secondary rings are as important? i see how the secondary rings could be important? That video made me have more questions, thanks.

BWX : You are promoted to mad scientist status. Congratulations.