250,000 DOMINOES! - The American Domino Record - Smarter Every Day 178

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  • Hevesh5
    Hevesh5  2 years back

    It was so great to have you here at the Incredible Science Machine!! You brought so much energy to the team! Thanks for highlighting our event and doing this study - it was super fascinating to watch :)

    This is exactly what I would have predicted: the bottom of the domino slips backwards more on surfaces with less friction and the domino line topples faster. I did my AP physics project on a similar concept and found that a smaller spacing on sandpaper (frictional surface) was SLOWER than a large spacing on sandpaper. What's interesting is that my original hypothesis was the exact opposite. From experience, usually a larger spacing is slightly slower on a normal wooden floor, but I didn't account for the floor surface when I made my hypothesis. A slippery floor surface (and also domino material, hence the color to speed variation) such as glass makes the dominoes fall faster.

    You're right though that this is more complicated than we think, and having an unexplored area of domino physics is super exciting :) Can't wait to see what you discover in the next experiment!

    Also a suggestion for starting the dominoes... I feel like we need some sort of motorized toppler that very, very slowly moves forward hitting the center of the first domino near the top. If you use a small spacing, the first domino may just lean against the next domino and not topple right away, but this would allow the bare minimum force required to topple the line. You're also right that a longer line is necessary so that the speed of the dominoes can reach terminal velocity. I'm not 100% sure how many dominoes that is (this could also vary with spacing), but I'd recommend maybe 50 in the line to be safe. Thanks again for coming! And now to watch the behind the scenes :D

    • 3D Cuber
      3D Cuber  10 months back

      Something gives me the feeling you had to write this entire.... *ESSAY* for school

    • Sebastian Salazar
      Sebastian Salazar  1 years back

      Ты можешь посмотреть видео

    • Parnikkapore Prompt
      Parnikkapore Prompt  1 years back

      Use the H5 Auto-toppler! W00T!

    • diploma students
      diploma students  2 years back

      sed trigger them with a small blower of air for 1 sec

    • J0N7X
      J0N7X  2 years back

      you could make a trigger that kicks it at the same speed all the times and has a stop at the end so it only pushes the first one

  • Finaltits
    Finaltits  3 days back

    So... essentially apply the Griswold "sled wax" from Christmas Vacation onto glass and set the dominoes up in a vacuum to break the sound barrier
    *In before everyone says you can't break the sound barrier in a vacuum. It's humor ;)

    • Jason Wills
      Jason Wills  3 weeks back

      Youneedtogetaproperjobman.

      • Saim Shaikh
        Saim Shaikh  1 months back

        The most soothing sound 7:30

        • Mark Kurzava
          Mark Kurzava  1 months back

          To get a better average speed for the dominoes falling, I think you need a longer "fall" to let them get "up to speed". Your fall is so short, it's barely getting started. You may get a more accurate result measuring a fall over a longer distance (or at least a longer "lead-in").

          • KC Roberts
            KC Roberts  1 months back

            Using some actuator like a piston that can be regulated seems like it would deliver the same force every time..

            • Félix pellerin
              Félix pellerin  1 months back

              You could have a marble roll on a ramp to a stick that pushes the domino with constant force and speed

              • Karl Gutowski
                Karl Gutowski  1 months back

                You shouldn't stand on the right. Stand in the middle, unless someone is trying to pass you. While polite, standing on the right side of a conveyor or escalator creates uneven wear on the bearings and tracks underneath, leading to more frequent failure and maintenance needs of the system.

                • Dojando
                  Dojando  2 months back

                  pff... American record... we have the world record with 4.8 million domino's 😂

                  but it's still totally awesome, I couldn't do even 1k without messing everything up.

                  • Jonathan Hall
                    Jonathan Hall  2 months back

                    Go to bed. sheesh.

                    • Jonathan Hall
                      Jonathan Hall  2 months back

                      Okay! Nobody leaves until all these dominoes are picked up !

                      • Robin
                        Robin  2 months back

                        I have seen the Domino Day world record in Europe 20 years ago and i think they said that stop to accelerate after 1,5m but im not sure and can't find any
                        TV recording.

                        • Jose Domino123
                          Jose Domino123  2 months back

                          OMG I just saw hevesh5!!!!

                          • Ben Bloom
                            Ben Bloom  2 months back

                            Hey destin, have you thought of trying this under water perhaps a different fluid medium would help you undress the friction/motion change happening?

                            • Alaae Mzibra
                              Alaae Mzibra  2 months back

                              I think if you can trigger it without touching it with anything that's what missing. So why not put two small magnets facing in different direction on both the first Domino and attached to the stick. So that you have a constant repelling force that doesn't require you to add any initial forces.

                              • Patrick Bryant
                                Patrick Bryant  2 months back

                                Drop a wedge for your trigger.

                                • Neil Drummond
                                  Neil Drummond  2 months back

                                  ok to get the same speed and not have the dominoes accelerating you would first have to find how many it takes to reach full speed and measure segments of when its going at top speed. That could be a lot of work but you can do it!!

                                  • Steven White
                                    Steven White  3 months back

                                    Use an electromagnet to trigger it. Set the first domino in the same place every time.

                                    • Steven White
                                      Steven White  3 months back

                                      Im going to make a domino field that takes 5 years to sit through. It will only take 157,680,000 dominos.

                                      • ixovera
                                        ixovera  3 months back

                                        I think that you should make a simple machine to regulate the push of the dominos. I also think that the surfaces with more friction cause the dominos to take longer to get to max speed. I think when the bottom slips due to low friction, gravity and the weight of the dominos increases the forward velocity faster than the dominos on a higher friction surface. Perhaps you can also set something up at the end of the dominos so you can better gauge start-end points of your measurement.

                                        • Curtis Barkes
                                          Curtis Barkes  3 months back

                                          Nevermind. I found it.

                                          • Curtis Barkes
                                            Curtis Barkes  3 months back

                                            Is there a follow up to this video?

                                            • Lil’ Benji
                                              Lil’ Benji  3 months back

                                              Alias....

                                              • Dona Harrell
                                                Dona Harrell  3 months back

                                                OMGosh! I am flabbergasted!

                                                • Andrew Medine
                                                  Andrew Medine  3 months back

                                                  A mark rober colab?!

                                                  • Quetzalcoatl
                                                    Quetzalcoatl  3 months back

                                                    You can trigger it by using a rod attached to the servo.
                                                    Using this, you can adjust height, speed of pushing, friction (you can use different materials for the rod.) etc.

                                                    Search for "Servo motor push rod" on the net.
                                                    It's mostly used in RC aircrafts and rarely on cars.

                                                    • Paul DiBenedetto
                                                      Paul DiBenedetto  3 months back

                                                      Why not make a competition and race groups of domino's between two competitors over a distance?

                                                      • Luna Tea
                                                        Luna Tea  3 months back

                                                        This is amazing yall can stop bragging about this domino day thing and enjoy the video uwu

                                                        • Dr. Ziegler
                                                          Dr. Ziegler  3 months back

                                                          250k is the us record?! "Domino Day" laughs at that number...

                                                          • Best name on This platform

                                                            I can’t do 5 dominoes in a row

                                                            • Will Saunders
                                                              Will Saunders  3 months back

                                                              Use a solenoid to trigger the fall, should yield consistency I would think

                                                              • Carlos Millan
                                                                Carlos Millan  3 months back

                                                                Awesome Domino video! Watched it yesterday. I think you should revisit the oscillating/twisting effect as they topple. Just to see if it wasn't causal to the initial uneven push, which seemed biased towards one side, possibly starting the chained oscillation? Or whether the oscillation is intrinsic to the wave-like energy propagation from an overall even push. If it's not an artifact introduced by the uneven push, then the oscillation is eerily similar to a descriptive electromagnetic propagation. Give it a more controlled environment!

                                                                • Jacob Godin
                                                                  Jacob Godin  4 months back

                                                                  Well the acceleration at the beginning can be explained by the fact that when you push the first domino with the stick, that gives less energy than the dominoes falling onto the next ones further on. So at the beginning its building up energy until it somehow gets consistent

                                                                  • Seamour Butts
                                                                    Seamour Butts  4 months back

                                                                    I know why the heavier dominos move faster. If the force it is pushed at is the same. The mass affects it because Force= Mass *Acceleration. If the Acceleration is the same ( the force of which the domino is being pushed at ), mass is the only variable, so if the mass is greater, the force will greater as well so the speed at which the Lego moves is greater.

                                                                    • Mark Hadfield
                                                                      Mark Hadfield  4 months back

                                                                      Use some sort of piston to topple the dominoes at the top speed of the dominoes.

                                                                      • AppleCider
                                                                        AppleCider  5 months back

                                                                        3:50 1512 hours is 63 days.
                                                                        7 days (24 hours) times 12 hours is 288 hours
                                                                        7 times 12 hours is 84 hours which is pretty cool.

                                                                        • RoyalMela
                                                                          RoyalMela  5 months back

                                                                          5:13 Haha... everyone counting was a second ahead.

                                                                          • Jed Jade
                                                                            Jed Jade  6 months back

                                                                            "Sorry boys, you'll have to share this one. Things will get easier when the next Casper sponsorship comes through."

                                                                            • autoscripts
                                                                              autoscripts  7 months back

                                                                              4:13 why are there 4 penises in the back ?

                                                                              • supersmalls
                                                                                supersmalls  8 months back

                                                                                if the domino reaches a constant velocity, then work out the distance it takes and start this distance off cam so that once it gets in frame it is a reference point

                                                                                •   9 months back

                                                                                  So guys, we did it. We reached a quarter of a million Dominoes

                                                                                  • Kaiwen 1010
                                                                                    Kaiwen 1010  9 months back

                                                                                    Maybe use lego EVE technic bricks, to program it to push the dominos and add a timer

                                                                                    • İbrahim Tayyip İşler
                                                                                      İbrahim Tayyip İşler  9 months back

                                                                                      As for the consistent triggering, you can make a long enough line of dominoes and make sure that they reached the steady state speed at the actual triggering end of your setup.

                                                                                      • agerven
                                                                                        agerven  9 months back

                                                                                        Hi Julien, fascinating (I'm a physicist too, as well as a fan of Hevesh#5). Lili does know something to get a reproducible start of the toppling. In some of her videos she has a little motor, rotating a vertical axis on which a small lever of wood is mounted. That topples the first domino in a reproducible manner.
                                                                                        Would love to see some more results of this investigation, as well as a comparison with the sonimods, a Lili invention, where the dominoes topple backwards while still giving a forward domino effect.
                                                                                        Thanks for this video, in which two of my favorite youtubers combine their presentation and skills. Really cool!

                                                                                        • Jrezky
                                                                                          Jrezky  9 months back

                                                                                          If they slip MORE, I would predict they would move faster since the top is actually moving faster since the bottom slips out in the opposite direction. To trigger the dominoes, just use a spring-loaded gage block or ramp for a roller to slide down which you can start at a fixed point each time.

                                                                                          • Fun With Reefing
                                                                                            Fun With Reefing  9 months back

                                                                                            Try knocking the dominos toward the bottom.

                                                                                            • shrek !
                                                                                              shrek !  9 months back

                                                                                              Hevesh!

                                                                                              • Roberto Flores
                                                                                                Roberto Flores  9 months back

                                                                                                Hey I know one of those guys in there and he is in my bible study group! Im impressed I noticed him lol. Joseph Naberhaus