The Impossible Domino

I show you a domino that stands back up after falling over and hitting the domino next to it.
3D printed from this file: www.thingiverse.com/thing:466...
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[@midobo]

Wow. I've set up dominoes for 23 years now and learned something new today.

[@ua464]

*Brain explosion intensifies*

[@scavorthespacecowboy2096]

holy moly its you! I remember watching your vids when i was way younger

[@robloxfan5467]

THIRD

[@tadyoshi3610]

Wow. 23 years worth of dominos. I can’t wait to see that topple. ;)

[@corso_blu]

You're really slow at setting up dominoes then. I could probably set up a bunch of dominoes in like 2 hours, tops.

[@aaronjamt]

Came back just to say that it feels like quite a coincidence that The Action Lab and Mark Rober just uploaded domino-themed videos within the span of a few hours. Coincidence? I think not!

[@Mink-1402]

The dominator haha

[@depressedpikachu1535]

Ikr

[@Zatticzattic]

I was just thinking that!

[@surcettinr2600]

Action lab has 10k views per hour - very respectable. Meanwhile, Mark Rober has 500k per hour.

[@lukeskywalker3879]

Same i just say it and i was wait are they doing a collab

[@Hevesh5]

it’s cool how when the second domino falls, it turns into a lever with that extra ridge, and can just spring up the first domino again! really interesting concept and great explanation. dominoes that are bottom-heavy indeed are easier to stand up.

[@robloxfan5467]

FIRST

[@ruby1one2000]

hey i know you!

[@daduckdatgames_7035]

The domino queen is here

[@daduckdatgames_7035]

@@Jesus_Is_Lord257 begone bot

[@daduckdatgames_7035]

@@Jesus_Is_Lord257 0_0

[@thom1218]

People want to see a whole row of them doing that... only problem is: those two are different from each other in mass and center of gravity, so they're not even dominos at that point. How about set a bunch of those pairs up in sequence so that every other one will return back up?

[@dgshivu]

Great idea, That would be so cool to look at!

[@hunterjoy1871]

It would only work if the 2nd domino didn't rest on the 3rd so the 4th would be able to pop up the 3rd and so on im supprised that noone has sakd anything about this, however if the 2nd domino was able to stand up from a push too then yeah it would ne feasible

[@princejangra1231]

Lmao I did not read the comment but I imagined the same thing Then make a trial side ways right?

[@chenningzhou6304]

It will never happen is impossible in a row so he dint make the impossible yet only can happen with 2 piece but hes lying there cus u must do it with same weight but we see 1 is more gram than the other so nope is impossible yet

[@Giacr45]

Yeah, IMHO criteria for the impossible domino would be: * All dominoes are equal * All dominoes get back upright at the end of the process * Must be able to work at any size (theoretically), so given just one model of dominoes i should be and to make this work with 10, 100, 1000 etc pieces. I shouldn't have to modify the model depending on how many must fall

[@christmassnow3465]

Next challenge: How many dominos in a row can make an "impossible" domino?

[@jasondelong83]

And then make them loop in a circle.

[@GhostMotion7]

@@jasondelong83 HARVARD WANT TO KNOW YOUR LOCATION

[@AAYLV]

@@GhostMotion7 haha good one

[@fsmvda]

@@jasondelong83 a loop wouldn't work because every other one must stay down, this only works when the two dominos are different.

[@banditosdetiempo]

@@fsmvda may be a reference to a Möbius strip. Then again, not all loops or squeg patterns are circular.

[@gandhibapu6198]

Mom: he must be studying hard for his upcoming exam Me at 3 am: 1:06

[@Abish_]

😂😂😂

[@suriyakumar2376]

Me at 8.30 pm

[@dindon6947]

I think watching this video is pretty much studying.

[@mohammedwasim5631]

Literally it's me 😂😂

[@memerr_]

Bro this Domino is like my dad

[@VideoSage]

"Impossible dominos aren't that impossible...." Long as you only have 2.

[@sairabanokazmi1150]

You can alternate between them. About half the dominos are going to pop back up.

[@eleSDSU]

It seems you could have a domino system which could stand back up by itself (except for the last piece obviously) only using the starting kick energy, it just seems like a ton of very fiddly work and could be achieved by having a moving weight inside the piece so when toppled the CoM changes to be above the balancing notch being able to kick back enough energy to the previous piece while being able to kick over the next one. Although I believe there would be some very strict limitations on how many pieces you could line up due to the amount of energy lost between pieces, also the magnitude of the initial kick should be standardized so you can calculate appropriately how to alter the design of the pieces. As said before not impossible, just really finnicky fiddly work.

[@karakaaa3371]

Seems like in theory you could have as many as you want, as long as there is always a gradient in potential energy, but it would probably get impractical very quickly based on how hard it was to get just two

[@highdefinist9697]

@@eleSDSU Yeah, you would need to "reload" the dominos between uses, but it could work.

[@tianamatson]

Buuuuut, it is impossible to have a row of dominos pop back up again.

[@danielyuan9862]

no it's not, but it gets harder for each successive domino you add.

[@hunterjoy1871]

@@danielyuan9862 sir you are wrong, unless the second domino doesn't rest on The 3rd

[@SoapMcCallister]

@@danielyuan9862 it consumes energy bcuz of friction

[@johnjordan3552]

Just put them horizontal from each other with each row being a 2 dominos unit, and connect each getting-up domino to the other one, one way or other.

[@sinteleon]

If we use fractals, it is possible, but each subsequent domino has to be smaller than the previous, infinitely.

[@cheeto4493]

I was thinking he was just going to stick a bunch of "Weeble Wobbles" in a row.

[@KlausKlass]

I thought so too, but I don't think that would work too well. The only potential energy in that system would be the initial push you provide. Each domino resists falling over so a lot of that initial energy would be wasted through friction and there wouldn't be enough left to make the next domino fall over after a couple in a row.

[@GeekOfAllness]

@@KlausKlass Unless you hit the first domino with a 1000 mph baseball.

[@tomascontrerasjr]

Or progressively large dominos

[@Padarom]

@@GeekOfAllness Not much of a domino chain if they end up destroyed and all over the place

[@Baekstrom]

Make them hollow. Put a heavy ball on a ledge near the top, making them top heavy. When they get pushed the ball will fall off and roll to the bottom.

[@Glamerth]

My professor on zoom: “Thanks for paying attention everyone” Me:

[@ph.hunts_rebels2421]

Lol

[@abeyaaryash9745]

Lol

[@dreww9011]

Lol

[@Pyrokartoffel]

Lol

[@ELECTRIC_GUITAR]

Lol

[@EvanOfTheDarkness]

TL DR: The second domino is designed to give some of the kinetic energy is has to the first domino when it hits the ground. The hollow top and bottom is not really important, it just makes the second domino store more potential energy than the first, despite being the same material, so it takes less energy to upright the first domino.

[@jamesbizs]

How is such a smart guy, not able to figure this out. I figured it out from just the few seconds of footage. You can clearly see the second domino kicked the first domino back up. Which is why it’s bottom isn’t flat and straight. It has nothing to do with the first domino

[@artdonovandesign]

Born in '52, I was raised on Don Herbert for 15 years! Every Saturday morning at noon in NYC. It's was like he was one of the few adults who "got" how much us kids thrilled to science demos and experiments. I hereby (and quite unofficially) bestow upon YOU the critically important mantle of "Mr. Wizard- in the 21st. Century". Please keep up the super work and thank you for your effort, ingenuity and creativity. Best Wishes, Art :)

[@dannycamacho2905]

Honestly was expecting a long line of dominos testing this still a good video

[@R1davies]

I've read you comment before watching the video (thinking it was the description) I will update accordingly. 🤪 Update: hugely disappointed. In my opinion; If you were to stand them end to end, the energy converted from your finger to the first domino would dissipate before the 6th or 7th domino

[@martinpedersen9046]

me to, doing this with the first is no problem. get both up - and then get 10 up, then you have a trick. :-)

[@jlwill114]

There would have to be a limit to the number you could have in a row, otherwise you could make a loop of them that can go forever, which we know is impossible. I suspect that the second domino having a higher centre of gravity is critical. If it was the same as the first I don't think there would be enough energy for the first to knock over the second.

[@shadykermit2187]

Dominos cannot tip themselves back up Action Lab: Or can they? *Vsauce theme intensifies*

[@gallium-gonzollium]

Hey, Vsauce here. Back with another video. This time we have two of these fellas. **shows dominoes**

[@whenthemowerhits6919]

Actionlab: just copy idea from viralvideolab and act as it was his own idea

[@platinum-or3y]

Very funny hahhahahhha 😐

[@randomnotes4258]

Vsuace, action lab here

[@GDPlainA]

Hey Vsauce, The Action Lab here. Is it actually possible to make a domino fall down and up again?

[@GamerX-2000]

All I was waiting for was him to realize you just needed weights on the bottom. The problem is like those old toys that were in an egg shape and had a ton of weight on the bottom and the top weighed nothing so that as long as you weren’t holding it and it was set down it would always stand up.

[@switjive17]

Was thinking the same thing. The problem is that if you used the same concept, the energy transferred to the next domino is severely diminished and wouldn't work for long chains.

[@prashp143]

He added more weight to stabilize, not to get the domino up.

[@GamerX-2000]

@@prashp143 oh. I’m an idiot then. Still reminds me of those bobbly things.

[@prashp143]

@@GamerX-2000 No one, who is curious, is an idiot. When he attached that extra weight, the same came to my mind too😀 Always be curious and never worry about anything while asking questions 👍

[@colleenforrest7936]

Weebles

[@47buddhists97]

*He says dominos like he thought of 101 Dalmatians mid-sentence.* “Dolminoles”

[@eeveelovereve]

When the dominos were just falling over like normal instead of popping up like he hoped, *I felt that*

[@joshfrfr]

💀

[@farciarzfunny5326]

@@joshfrfr no

[@joshfrfr]

@@farciarzfunny5326 cool

[@shjkesnc3502]

How can someone be this unfunny

[@joshfrfr]

@@shjkesnc3502 just depends your humor bro

[@eeveelovereve]

Whoah I've never seen an Action Lab video so fresh

[@shrivathsprabhu1137]

ikr

[@mrjazzdog]

This is why I love Action Lab. The video starts, you think you have a idea about what the video is and where it's going so you build your own hypothesis and outcome and before you know it... You're Googling terms and learning way more than you expected to. Thank you so much, I never get bored of your videos.

[@contagiousingenuityagency5273]

James, Here's something I noticed at 1:29. The domino with the big hole through it has its long sides acting much like springboards. When it hits the other domino (on the left of the screen) the impact lands around 2/3 down from the top of the long hole (visually), compresses the 'wall' of the domino on the right and springs it backwards. That in my opinion is the momentum which caused it to flip the other way. Hope at least some of this makes any sort of sense :)

[@Ray2001ify]

When i show my 7 year old this i will get a lecture about how this doesn't count

[@scavorthespacecowboy2096]

lol

[@splenden2235]

How the tables have turned

[@Yora21]

And the kid will be right!

[@EARTHIANGamerz]

Anyone noticed his tshirt have the portrait of the most talented and underrated scientist.

[@shahrukhabrar]

That is Tesla. For those who don't know

[@SaditRubel]

Nikola Tesla

[@chubob73]

Tesla did not sell cars... *...or did he*

[@SaditRubel]

@@chubob73 conspiracy 👀

[@koelan]

@@chubob73 he did

[@BariumBlue]

I was expecting a ball or weight inside the domino that would fall down when the domino was knocked over, giving enough energy to knock down the next one AND come back up while looking like magic

[@ElliottParkinson]

I just spent 15 minutes of my life listening to a guy talk about his struggles getting it up. Science

[@sleepful1917]

you watched it three times ?

[@Mike__B]

In a world where everything that tips over is a "domino"

[@WolfRose11]

I guess that makes us human dominos 😹

[@ghartuckt663]

I mean it is called the *"Domino effect"*

[@laggybro64]

I am a domino

[@ThiagoBouzan]

he...will make his own rules

[@anirudhnair6267]

that's what you get when Domino's become worldwide franchise.

[@OldBlixerXx]

Dominos cannot go back to its state when its pushed down Action lab: Are you sure about that?

[@Porkupine69]

Science: exists Action lab: are you sure about that

[@ZwaetschgeRaeuber]

well yes, dominoes cant go back. its just a single domino

[@vfc1143]

Actionlab: copy video ideas and design from Viral video lab

[@banditosdetiempo]

@@ZwaetschgeRaeuber of course. If you count a string of ‘dominoes’ as a single entity (domino chain) operating on just one ground state alone.....then>...... yes.... one is only observing a fraction of possibility playing out.

[@Think_Inc]

This comment reminds me of another video from a totally different channel.

[@MYZS]

I got some real respect for this guy pulling up with the answers and being reliable

[@newjargon1697]

The Action Lab Learning something knew or expanding my knowledge on a subject is something I strive to do every day. You've got a great way of doing this for a lot of people, even if they don't realize it. I think it's important. Thank you for the video.

[@soul46268]

I don't know why but I love when he says "grams" it's just satisfying 😂

[@factssoup5056]

😂

[@factssoup5056]

@Moonblade 12 Pronounciation I guess...🤔

[@verlax8956]

cuz weed

[@eltoronegro]

Was waiting for a string of them to fall and stand back up.

[@namanmishra1030]

Its hard to please everyone

[@maariyamulla3679]

Oh c'mon! I think you're expecting too much!

[@wolfsesthenighteye499]

How can you be disappointed at that trick and not just one of the coolest tricks but a friking exploration afterwards

[@fuzzymuffin8273]

Already knew the mechanics of those 3D printouts as soon as I saw how they fell. Could change up a domino enthusiast’s game. A domino that falls both ways.

[@planktonfun1]

no not more energy, the second domino transferred its potential energy back to the first one, losing its bounce in return to a knock back

[@dannywalsh5667]

So it gained more energy 😂😂

[@nickryan3417]

This *entirely*. The tipping point energy break point is only about knocking the domino down, the setup energy is the energy delivered after going through this point. For the first domino to be put back up the energy imparted in it must exceed the energy difference between the potential energy of it falling over. This was delivered through the kick back of the first energy pivoting on the rib that was on its far side. The description of the physics in this video was right in the description of the falling over and the tipping point, but wrong in the description of the domino being setup again. There was more potential energy in the second domino through the weight position and this when imparted to the first domino provided the energy to right the first. That's it, nothing more. It would be more interesting to see this managed with multiple dominoes rather than just one, however then it the energy loss (inefficiency) of the process would start to become very obvious.

[@jamesbizs]

So someone actually watched the video carefully, and has a brain. Thank you

[@b.jagathish2172]

Anything in the world is possible ...this is the one thing I learnt from you

[@Porkupine69]

Now I go to moon

[@ph.hunts_rebels2421]

No it's not but most is possible you can say almost anything but not everything

[@kiransivadas1954]

2nd law of thermodynamics wants to know your location

[@samnfg]

You're amazing, i love watching your older videos. Keep it up man i appreciate what you do.

[@MrGsqr]

You are truly dedicated to your work. Nice experiment, congrats!!!

[@saikathghosh8733]

I dont know how he makes such amazing and thoughtful videos!!

[@Northwood420]

Because he is a giga genius

[@JETJOOBOY]

He Thinks and is also Amazingj

[@maschendrahtzaunmontieren9327]

He just steals from "viralvideolab" on youtube

[@SuperJesseisawsome]

@@maschendrahtzaunmontieren9327 its not stealing if he took an idea from a 58 second video and actually explained it so everyone can get an idea of whats happening

[@maschendrahtzaunmontieren9327]

@@SuperJesseisawsome 00:21 "so that got me thinking"....the problem is that he acts as he had the initial idea, but he had not. And he even didnt mention the original video. That is not a good style!

[@ViralVideoLab]

Thank you for using my 3d printed design "Impossible Domino" in your video! Would have been nice if you mentioned my channel as i invented the design after all.

[@sitearm]

nicely designed, demonstrated, and explained... ty for posting!

[@ColinTimmins]

This channel really brings me back to the day when I used to watch "Mr Wizzard" on TV as a kid, great stuff. =]

[@shrivathsprabhu1137]

man i hope u reach 10 mil subs as ur yt channel has immense potential

[@Porkupine69]

How to turn it to kinetic?

[@Jkmthink]

I thought 3M is huge

[@DevinBost]

Or maybe it just has great activation energy

[@maschendrahtzaunmontieren9327]

He just stole it from viralvideolab

[@whenthemowerhits6919]

The idea and design is just copied from viralvideolab

[@joshrepik]

My guy is just lying on the concrete when there’s at least carpet in front of him lmao Edit: holy shit these replies are amazing thanks for the likes 😂

[@turolretar]

That’s the End portal

[@edattacks]

@@turolretar like how you both have Peter Griffin profile pics

[@jcs6206]

Intelligence doesn't always come with common sense.

[@youdontknowme5969]

the blacker-than-black fabric

[@mikewazowski9941]

@@edattacks theres no such thing as a coincidence

[@nanamacapagal8342]

Never stop breaking the game. It's always fun to see you exploit some bugs in the universe.

[@ant_mk3596]

Awsome, but now I want to see you make a row of 5, then 10, then 100 dominoes that go down and then stand up

[@igxniisan6996]

Fun fact: it is still impossible to do it for more than 2 Dominos.

[@CodeKujo]

Why? Seems like it could work with three

[@dookie8649]

well u could put one non hollow domino behind the hollow domino

[@ElRectalo]

I mean, I believe it's possible with basically any number of dominos, if you figure out exactly needed form, weight, and center of mass, but there will always be only a finite number of different dominos, and the last one will newer be able to stand up after hitting the first one, so it's not an infinite engine

[@TheMoonMan.]

​@@CodeKujo because the second domino need to fall completely for the "kickstand" to work. If there's a third domino in font of it then it can't do that.

[@CodeKujo]

​@@TheMoonMan. The Kicker domino does have to be last, but there can be more than one preceeding domino. All the dominos would fall, then the last domino would kcikstand all the rest of them back up. I think there would be a practical limit that keeps the length fairly short, but more than 2.

[@zarrel14142]

Short answer: no Long answer: you need a custom 3d printed domino and a bit of weight.

[@zarrel14142]

@Seek Vapes lol

[@AmanSingh-ed9sq]

This video was uploaded before mark Rober's video and mark rober was working on the dominator for 2 years so the conclusion is that, coincidence

[@AnanyaGupta]

It is kind of intuitive but what a clear and concise way to explain what is happening with so much context. I wish you had done more film shots at even faster speeds of the domino effect at 1:27

[@efeozdemir412]

This reminded me a toy I used to play called "hacıyatmaz" It is a toy that no matter what position you place it, it always stands back up because of the weight in the bottom of it.

[@MediumPointBallPoint]

I was thinking about Weebles, in "Weebles wobble but they dont fall down". These were bottom heavy as well. The question is, if you reversed the "domino" into a weeble, then instead of a transition from high to low energy, you would make the lowest energy state vertical and enegy would move in a wave of tilting dominoes.

[@tunaan80]

O isim türkçe mi?

[@andrefasching1332]

@@tunaan80 just fucking talk english on the open internet/youtube

[@andrefasching1332]

i had the "same" thing. My grandpa brought me a fake one from serbia when i was a kid. legend memories

[@tunaan80]

@@andrefasching1332 He typed in turkish, so is his name. So I would guess he was turkish too. I wasn't conversing with you. If you're so curious about what I said, go to google translate.

[@Malakawaka]

You should try to make many and get them all to fall in chain, but stand back up

[@AmaroqStarwind]

Using tension, springs and linkages, you might be able to make a transmission with this.

[@vfc1143]

He didnt design it, he just copied it from a youtube channel

[@banditosdetiempo]

@@AmaroqStarwind wow that is a monstrosity. Super fun to build but it would still take some more ‘fundamental/advanced’ physics and engineering to achieve the effect. Not impossible though. 😊

[@AmaroqStarwind]

@@vfc1143 Proof?

[@vfc1143]

@@AmaroqStarwind kzbin.info/www/bejne/h2fapIxrjrVohtk

[@ProperlyOffensiveSh1t]

Plus that small ridge on the 2nd domino allows a lever effect on the 1st domino. Noticed you didn't mention that, but it's crucial to the whole thing working.

[@leiamconway5484]

You should consider making these as a domino set that you could release to the public.. I would recommend starting off the set would two different colors where you would place one color in front of the other color and see what the chain reaction could possibly be would it be possible to make all the Domino's self-align back up so you could knock them down and unlimited amount of times so to speak?

[@mikol.douglas]

I’ll bet if you put a bunch of the “A” style dominos in a row with the “kicker” style domino at the end, it just might kick a few of the “A” style dominos back up.

[@GeekOfAllness]

I'd be curious if you could do every other domino and get half of them to stand back up.

[@kissofdeath4449]

I doubt it. The top heavy Domino acts like a lever to push back the "A" Domino, which is "A" Domino isn't. But I'd like to see what happens. It'd be cool if even the second "A" Domino stands back up.

[@cwwisk]

My guess is the second "A" domino would shoot across the room.

[@vinceemery5943]

Maybe if you created one of those increasingly large domino chains so that the one with the kicker is the largest and knocks up the others?

[@TheOpticalFreak]

Nope not possible, to much energy loss!

[@kgapaneseschoolgirlb]

I done something like this with those roly-poly toys which always bounce back up without fail after you push them. I set up a line of them and pushed the front one which knocked them all down and then they all bounced back up again. I was really amazed by those toys as a kid!

[@undernetjack]

Weebles, wobble, but they don’t fall down... 👍

[@cookmcpherson]

Need more please! Full length video of double bouncy rebounding dominoes!

[@desmond-hawkins]

Unbiased product recommendation: I have used the very same scale (2:27) to measure "other things" to milligram precision hundreds of times. It's a great scale, I'd _highly_ recommend it.

[@cherryangel4u]

Was I the only one waiting for an Impossible domino chain!?

[@zaytaz9331]

In my physics class we are learning about these energies!

[@zaytaz9331]

@@abrahambrandon4284 thank you :D

[@thetruthexperiment]

Embrace it while you can. “Theory” is coming and it it denies all objective reality accept white male oppression. Get ready for that to be the only thing they teach in school. Sounds silly, but it’s actually real. They’re already teaching it to children.

[@zaytaz9331]

@@thetruthexperiment wha-? what's 'Theory'?

[@bitwize]

Thanks for this nice little dose of physics. Not quite a Feynman lecture, but close in terms of informative fun.

[@paulmurphy3838]

Oh, you are an amazing man, I am sure you have the potential to change the world of energy production, you are so close, please keep going and please keep sharing your insights. I have to say I dont care how you gather or glean this information what you do is truly revolutionary.

[@Specter0420]

A third Domino would block the kickback effect, so this isn't really Dominos IMO.

[@azkamil]

Agreed. This won't be sustainable unless dominos get bigger with each step.

[@meribor]

I don't think it would work even then, because the effect in this video requires each domino to land all the way flat, which would be ruined by the dominoes propped up by its neighbor. Further, once the final domino does lay flat on the ground, that kickback effect can only be applied to the 2nd to last domino, which it may not even be able to do due to the domino before it resting on top of it. Cool demonstration and explanation, but were no longer talking about dominoes anymore

[@clempocap]

Could it work for every second domino by alternating the two dominos he has?

[@vivimannequin]

Reverse domino effect

[@banditosdetiempo]

exactly... we are not talking about dominos anymore. 😊

[@woodellic7357]

Anyone thinking of an ever ongoing Dominocircle? Like free-energy-style!

[@MicheleDelGiudice-mykys]

Not sure if you can make more than 2 of them, especially not in a circle since each one is heavier or lighter than the next one.

[@BennoRob95]

Impossible domino chains plz. You’re a literal genius too

[@genelomas332]

Would really like to see a chain of ten of these working.. The different designs of these 2 mean it would be a big challenge..

[@KidMxrch]

I really love these videos I'm always so interested in these type of videos

[@Divy.]

1:04 When you feel super bored

[@niconico3907]

You should try with a row of dominoes of the same design, but each one is a little bit bigger than the one before it, so it can give enough energy back to put the previous domino up.

[@D.B..]

An additional challenge could be to have a setup of 3 dominoes with the starting domino in the middle. The starter would be used to topple the domino on one side, when it would get flipped back and topple the domino on the opposite side, then possibly have the starter stand back up to its standing position.

[@sumrandumbdude7385]

Hey, I have a question. What happens if you shine a laser in a room of mirrors?

[@saiprasadchavan3170]

Thats a really good question...

[@hmmmtietmetmosterd]

He did that already..it loses lumen every new mirror

[@banditosdetiempo]

What kind of laser? What kind of mirror?

[@RoyCruse]

It doesn't count unless you get a chain of dominos to all stand back up

[@banditosdetiempo]

Got to use both your legs and arms to do that. 😊

[@jamesbizs]

If he used even a string of 3, this would not have worked, because the second domino is kicking the first one back up

[@everlast6128]

It is actually more about how much energy is transferred to the domino from you initially when you knock it over, the center of mass just guides the domino’s repercussion so that it stays upright.

[@everlast6128]

An example would be what if you threw a bouncy ball at the ground as hard as you could, at a surface at the same level as your feet. Because of the additional energy, the ball would go far beyond the starting height. Imagine that conversion with dominoes, it is valid because it refers to the same law that is affecting the dominoes.

[@carldombrowski8719]

Now you should make a whole bunch of them with both weights and lever-notches to see how many you can push and self-right until the extra energy from the pushing is used up. Good luck!

[@cyrilgibaud570]

What if you remove the added weight on the bottom of the "A" style domino (so that it tips over in the other direction like here 1:26) but put a second "kicker" style domino on the other side? It should fall and be kicked a second time, right? By fine-tuning the scale and/or center of mass of the second "kicker" there must be a way to raise it up again clean! That would be awesome to watch!

[@VoltisArt]

It was the levering motion of the second object (at the end of its fall) that pushed the first object back. The first's own rebound wasn't quite enough to pop it up, so you'd have to time making the third object fall somehow (external force, i.e. a second manual push) to get it to bounce the first sufficiently, basically doing the same thing once per side. Big no-no if you're using the word, "dominoes." This experiment started out so far from dominoes, (as far as the shapes presented in the video) that I think taking it further into more unique shapes doesn't really get closer to either useful physics or game experimentation. It's basically _only_ doing the second half of a Mythbusters experiment: Make it work, no matter how absurd the input needs to be. While the resulting explosions and other silliness were _always_ fun, the interesting _science_ always happened in testing the original idea. Some of the comments about Weeble-like devices might lead to an interesting physics/sound toy, and would at least allow all parts to be the same shape, which is somewhat common with dominoes, which are usually the same basic shape. They would also do what more people expected: All tip back up, not just one.

[@happyhippoeaters4261]

Yes, but the momentum will be loss over the course of the line.

[@VyvienneEaux]

Thank you, cerebrofellator. I was impressed by your previous reverse domino video and impressed once more by this one.

[@chrisgriffith1573]

Yes, but what the trick is... is to sustain a "kick back" reaction for a series of dominoes. Not just one. That is a matter of engineering and balance for each domino. I see a flange at each base which exaggerates the Kick Back reaction (of the domino behind it) and still allows the higher center of gravity to smooth out the tipping point. The flang also provides an arresting point of the kickback reaction, so you can put even more energy into the kick back than needed.

[@elemento489]

Almost Every Principal : "We Need Him In Our School"

[@bobby_greene]

4:48 doesn't the second domino have kinetic energy at this point?

[@ingcarmine]

Yeah, all the potencial energy is converted in kinetic energy right in that point, and that kinetic energy is enough to push back up the lighter domino, since it needs less energy to get straight again.

[@traviswilliams3209]

Since you're making the hit domino asymmetrical, might as well make the side that gets hit square at the bottom so it can transfer more energy back into the first domino, possibly enough to use the geomtetry of the hole alone to get a balance without any added weight

[@synisterfish]

As soon as this video started i was transported back in time to being a kid in the 70's, playing with 'Weebles'...

[@mohammadfaakhir1908]

The Impossible Domino is getting a pizza from Domino's that doesnt has less toppings

[@radicalxedward8047]

Yeah, I’m always disappointed when things fall and don’t magically go back to their starting point… WTF?!

[@TAREQSBELAL]

I enjoyed your experiment Thank you brother 😊

[@MagicMaker2oo2]

this is a very interesting video , though it wouldn't work with more dominoes since the domino that pushes back up the one which fall first would also need some kind of custom domino to push it back up as well. What would be interesting is to find out a single domino shape able to push down a domino and to be pushed back up as well :)

[@swaggychicken.]

not spreading hate or anything but wasn't it obvious that if you would increase the weight at the bottom it will come back, you know like those dolls which have a rounded and heavy bottom. just round the domino bottom a little and add some weight to it,

[@the-lonely-cone]

It may seem obvious to you but it can be nice to have an in depth explanation for a lot of people (such as myself)

[@clothinghanger6978]

"no matter what, it can never get back to the height it started from" What if you pick it back up? Obviously this is supposed to be a joke but I decided to put this here because honestly this is not a very good joke

[@Porkupine69]

😶

[@Vivungisport]

Only energy from dominos count 😉

[@bromandudeguy4626]

Mr wizard strikes again. This is the only channel I get notifications for. It's like it activates a dormant spot in my brain.

[@colettehenderson6108]

You and Mark Rober need to combine your domino powers.

[@TheD3RK0CH]

I came up with the idea, that you make heavier dominos with a weight inside the bottom of it. The direction of the row of dominos is important, because you shape the dominos like half an "U" and half a "L" should look like this (use a bit of imagination) LU "falling"-direction to the right. The amount of energy that is required to get them back up is on a minimum. The energy consumption of the push is much higher, but you can use your finger to push those heavier dominos harder.

[@RavenMobile]

Now try to produce a set of 10 or 20 dominoes that all fall down and bounce back up, by progressively changing their shape throughout the set.

[@VassilisPerantzakis]

Cool. It would be very funny if someone tried to create a perpetual motion machine with this! I can see the titles in my head...

[@malootua2739]

You're a creative genius, great content!

[@bagelverse]

I think you should have also included some discussion that the bottom weighted domino bounces back up because you designed it like a tuning fork, the kinetic energy of the falling Domino gets stored in the lower prong of the domino that as potential energy stored in the spring of the Domino which then pushes it back up as it releases.

[@robinbaylor2672]

Weighting the bottom of the first domino actually raises the activation energy for tipping it, making it less likely to tip back the other way. It probably doesn’t do very much to the potential energy, since that was already sufficient to make the other domino kick back.

[@raincastmusic]

Now we need it in a full row That might be tricky though

[@justinbellotti7838]

This is awesome.... I can't say any more than that. still trying to wrap my head around it.

[@Corzappy]

The issue is that you can’t really chain this together because the domino kicks up the one behind it with a leveling action, which won’t happen if it falls onto another domino. But technically if the last domino had enough potential energy it could kick the one behind it up and cause a chain reaction to the end of the line.

[@Sangram_Raorane]

The Action Lab has become even better

[@RushinTruckin]

Theory: thin out one side of the long hollow one to increase its CoI (coefficient of restitution... think golf club or tennis racquet) Also add one of those lips to every tile. May need to be placed lower on the tile to compensate for the lower cog 🤔

[@devanshgarg31]

Wow! This explains the bead ball dealing chain effect or so called mould effect