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https://www.youtube.com/watch?v=9hPIobthvHg

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Dominoes - HARDCORE Mode - Smarter Every Day 182

Click here if you're interested in subscribing: http://bit.ly/Subscribe2SED If you want your own personalized DNA genotype data here's the link: http://www.23andme.com/smarter Get a free audio book! http://www.audible.com/Smarter ⇊ Click below for more links! ⇊ 3Blue1Brown https://www.youtube.com/channel/UCYO_jab_esuFRV4b17AJtAw Slow Motion Sound, Ambiance and musicy things by: Gordon McGladdery did the outro music the video. http://ashellinthepit.bandcamp.com/ Dominoes Provided by: https://bulkdominoes.com/ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ GET SMARTER SECTION I expected the hardwood to be faster than the felt because the rotational moment of inertia when spinning around the center is 1/4th that of tipping on the edge. I was wrong in this case, but I'm wondering if this would hold true on glass? THANK YOU EVERYONE who helped reduce the data! Names at bottom of this description. Follow the SED subreddit and other stuff if you want to help with stuff like this in the future. Here's the link and spreadsheet to see how we did this: https://www.reddit.com/r/SmarterEveryDay/comments/7biflo/smarter_every_day_domino_data_entry_request_want/ Rotational Inertia of falling dominoes can be calculated with this. https://en.wikipedia.org/wiki/Parallel_axis_theorem There are several papers on dominoes out there... but none really touched on the stuff I'm talking about in this video. Please feel free to point me to sources if you've found them. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I'd like the thank everyone who follows me and especially those who helped process the data (names at bottom) @smartereveryday on Twitter 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 @smartereveryday On Instagram http://www.instagram.com/smartereveryday Smarter Every Day SubReddit http://www.reddit.com/r/smartereveryday ~~~~~~~~~~~~~~~~~~~~ THANK YOU to the following folks who helped process the data names below! (See the data here: r/physics GH, Blitz, Kelly F., Ruvi L, Kelly F., Andrés L., Andrés Lit., Austin , Kelly F., Ely, Blitz, Blitz, Nathan Graves, r/SmarterEveryDay Leo G, Simon Zhang, Bryan Habas, Bryan Habas, Austin Hermle, Thomas Kempf, ZachPruehs, Zach Wiggin, Matt Hackett, Maurice Fahn, Felix Maas, Alan B, Scott W, Andrew W, CM. Au Yong, André vD, Jacob Pierson, Felix Maas, CM. Au Yong, Dan Whettam, CM. Au Yong, Patreon Patrick Ford, Patrick Ford, Tom Haake, Heather Deter, Nathan Samchek, Kit Komarov, Nathaniel Leung, Daniel Johnson, Luke Israelson, Patrick Ford, Zach Banks, Jay Anderson, Mark Brouwer, Mark Brouwer, Tom Haake, Andrew I. Young, Austin Burnham, Mark Ellis, Facebook Ben Heckard, Jeff Steiner, Martin Licko, Seyyed Ali Hedayat Mofidi, Jacob Brausch, Jonathan Baston, Eyal Dayan, Daniel Hardy, James Reardon, Leonardo Garcia, Ryan Crowley, Asad Mirza, Ben Perry, Caleb Crow, Joe Schey, Flo Hörtnagl (@fhoertnagl), Ben Martens, Andrew Hawcroft, Seyyed Ali Hedayat Mofidi, Mathieu MacAdam, Twitter Humaid Mustajab, Andrew Afflitto, James Frazier, Dustin Ybarra, Arthur Scott, Andrew Mleczko, Calvin Franz, Josh Sheldon, Todd Gallant (@galtomasum), Anthony Rovegno,Daniel Bethel (@SpiderRobotMan), Graham Allen, Kevin Schwarz, S. E. Vidrio, Will Slack, S. E. Vidrio, Pat Bigelow, Nate Thompson, Grant Hoover, Chris Carey, Steve Brand, Robert Beck, Robert Morgan r/NDQ Taxikab96, Wilda666, MrThursty, Christopher Britten, Kyle Pham, rafasc, HooliganTim, Grant Peter, nickleplated, Kyle Pham, Tommy Smith, Tommy Smith, Chris Allen, Georges Jaar, Snapchat/Instagram Noah C., Nathan K, Hunter B., Wyatt Wheeler, Hundter Biede, Alex Truax, Hundter Biede, Alex Price, Piotr Grzegorczyk, Andrew Lit, Sven Weihe, David Ruscalleda, Rory Semple, Max Kissen, Caleb Knight, Nathan Pak, Ben Kratz, Derek Haas, Also, thank you to my Church, First Bible Church of Decatur, Alabama for the use of the gym over 2 days. https://fbc.org/ ~~~~~~~~~~~~~~~~~~~~~~~~ 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

Comments

Kristy

How many takes did you have to do to get that half-court shot?

Jake Brownson

One of my favorite videos you've done

Jared Johnson

"Last Man Standing" domino - that's incredible! I'm with Jake - one of my favorites; maybe even 1st/favorite, full-stop. Simple->complicated, chain reactions, unseen things that become noticeable on a closer look...I see many teaching moments & even sermon illustrations in this! I'm glad to be one of your patrons, Destin.

David Voigt

What is this flashing thing, hanging in the corner of your world map?

Brian H

Could you get around the moving camera timing issue if you could (in theory) move the camera a large distance away and use a telephoto lens? I know tele lenses and high speed cameras don't play nicely due to light availability, but if you were able to overcome that in the future, you should also be able to overcome a significant portion of the perspective issue with the dominoes, eliminating the variable of the moving camera?

Simon Nielsen

This is one of the more exciting videos. I love the science in "Basic" stuff, so keep them coming :-D

Steve

Great video, Destin. So, you did solicit multiple crowd sources to gather the data after all. :) Totally agree with your comment about people asking simple questions in meetings being favorites. In the corporate world of nearly non-stop virtual conference calls, I continually see such questions lead to rethinking process designs and ultimately improving things. Meanwhile others are too sheepish to ask what they were wondering about. Ask the questions people, please! :)

Patrick Ford

This was really cool! I was one of the patrons that helped out, so it's awesome to see the final product.

Austin Burnham

It was fun to see the result of the data I helped generate. I’m glad to hear we patrons gave you accurate stuff! While entering data, I noticed that the dominoes spun more than I expected, and it is neat to see the effect it had on the velocity. Thanks for a high-quality video.

Muhammed Bholat

I am just curious. Did we actually solve the problem of the initial force? Isn't that varying if it's a human hand? Could a possible solution be to have an identical mechanical force each time.

Alexander Blom

If the line is long enough you will eventually reach steady state motion.

Muhammed Bholat

Thanks very much for both the replies. Do we know when such a system will reach steady state motion?

Rickard Dahlstrand

An idea for improving your setup. Buy or make a motor driven sled and attach a stick to it so that the sled starts the dominos. That way you will always have perfect footage.

Louis D. Monaghan, Jr.

I enjoyed the video. I was impressed with your teams persistence and dedication. Setting up that experiment again and again had to take some serious willpower. Also, where can I get a "Adventure Til Death" T-shirt? Cheers!