The real chaotic pendulum has a knife at the end

@JacobRy

5 жыл бұрын

Its like Russian roulette, but more mathematical.

@Tensho_C

5 жыл бұрын

@@JacobRy more random

@QueueWithACapitalQ

5 жыл бұрын

IIAOPSW stage hazard for the knife roombas

@androcicin-sain1097

5 жыл бұрын

Chaotic evil pendulum

@norman8737

5 жыл бұрын

IIAOPSW have you seen the box with the tentacle knife at the end

I really liked the overlay! I'm here because of Objectivity

@SteveMould

8 жыл бұрын

+SmarterEveryDay Hey Destin. Big fan of Smarter Every Day! Thanks for checking out my channel.

@error.418

8 жыл бұрын

+SmarterEveryDay Objectivity also sent me here :)

@oldcowbb

8 жыл бұрын

+SmarterEveryDay anyone send me to there

@grantiverson332

8 жыл бұрын

+SmarterEveryDay I'm surprised how similar take one and two actually were. Usually the chaos appears much more drastic.

@grantiverson2196

8 жыл бұрын

+SmarterEveryDay I'm surprised how similar take one and two actually were, especially toward the end. Usually the chaos appears much more drastic.

3:33 I want to find love the way Steve Mould stares at a double pendulum 3:33

3:26 for me, will edit once I watch the rest // edit: Damn, still had a lot of momentum apparently! Interesting to see that, thanks for involving us a bit in the video :)

Steve: posts video "Four years later" KZread algorithm: and you'll get recommended

@renoor

4 жыл бұрын

oh wow, just noticed it's 2015. anyways, it's 3:47 for me

@matthewcales8037

4 жыл бұрын

NOV 2019, video showed up on my recommended.

@yuvalne

4 жыл бұрын

@@matthewcales8037 same

@jamesl8640

4 жыл бұрын

Know that one.

@jamesmorgan6831

4 жыл бұрын

The real chaotic system: KZread recommendations

3:28. admit it, when you said "completely different", after releasing it for the 2nd time, you briefly distrusted physics and thought about how you'd have to retake the shot if it for some reason turned out to be too similar:)

@SteveMould

8 жыл бұрын

You got me!

@montano0222

8 жыл бұрын

+Steve Mould You should play 2048 hexagonal version, on the biggest grid the goal is a tile larger than 1,000,000!

Went to hit the space bar, another flip happened and I literally paused exactly as it passed through again! Amazing! Nobody could get closer to that... at 3.32... Oh, turns out my next 2 guesses were wrong as well. I like this game! Can we have another dozen videos of the pendulum to play with please :-) Come on, it's been 6 years after all! (hopes he hasn't missed another13 of these videos)

My life is more chaotic than this pendulum.

3:40 ... and then it immediately flipped again when I pressed play. Son of a bitch.

@IamtheWV17

7 жыл бұрын

But only 2 more flips in the one swing :(

3:41 Edit:I'm as confused as a chameleon in a bag of skittles.

@josgeerink1350

5 жыл бұрын

Me too

@Chris-dy1cb

5 жыл бұрын

@@hello9004 scary godmother

@crimsonkaine541

5 жыл бұрын

Same lmao

I waited too long, but was fascinated by your video. Thank you for posting. I would like to know how we know that this is chaotic, how sensitive must a system be to initial conditions for us to call the system, "Chaotic?" Is it provably chaotic?

@shanyangyau9270

2 жыл бұрын

I think it is. Chaos has a rather rigorous definition and the way I think about it is that a system is chaotic only when there is no threshold of accuracy (like “you must get the initial conditions to the 9th decimal place” or sth) that you can reach to get reliable results. Ie it is either bang on the exact initial conditions and or nothing.

3:30 i also appreciated the overlap to show the variation of motion, nice trick!!

@thiagoschp

2 жыл бұрын

4 years later, 3:30

@michaeld4861

2 жыл бұрын

I guessed 3:30 as well

@yokeloeulci8001

Жыл бұрын

Dunno how to time stamp, but 3:28

Didn't end up pausing. I kept thinking it would somehow manage to flip again

@bartdevries8531

4 жыл бұрын

Yeah, same. Does that make me an optimist? :-)

@Baiko

4 жыл бұрын

After what ended up being the last flip, I was thinking the next one is going to be last, but it never happened.

2020 is a chaotic pendulum

@pettssontube

3 жыл бұрын

Me: Surely now, the final flip has happened 2020: Nope, still got more to give!

@max-ry3gv

3 жыл бұрын

so is 2021

@joshyoung1440

2 жыл бұрын

No, no, we definitely had some expert models, that shit was predictably bad... the only variable that was unexpected was quite how stupid, stubborn, and lazy people were going to be... but that's what happens when an evil orange with mold for hair poisons a culture that's all too eager to be poisoned

Idk why this thing is so hilarious. Laughed my butt off

3:41 Missed it by one flip!

@thomasowenmazzetti7877

7 жыл бұрын

Jivan Scarano same

@ax1tl

7 жыл бұрын

it was 3:44 the last flip was made

@Nixola97

7 жыл бұрын

Same here!

@Xanderqwerty123

7 жыл бұрын

Damn i did too!!!!

@Lanthanideification

7 жыл бұрын

Same.

Steve:this pendulum is the hardest thing to predict KZread recommendations: allow us to introduce ourselves

@mwhodatboi

4 жыл бұрын

The only funny KZread recommendation joke

@mwhodatboi

4 жыл бұрын

@DeepSound Art fax

@wowsuchhandle

3 жыл бұрын

@@magica3526 I agree

I paused the video around 3:00 mark! And as my intuition suggested not to tempt myself going through the comments section below! My unlucky guess would be that it should stop flipping around time mark around 4:00 secondly although this video is 5 years old but I just stumbled upon it and thought to honour your request as per for pure science sake!! And glad that I discovered a good KZread channel which can always indulge your mind in a healthy way with a sheer British humour on top! A fan and an admirer from Pakistan!

Please revisit this, Mould.

It's like jamming in a band and trying to guess when the guitarist stops soloing.

3:38, but I'm probably wrong Edit: yep, I was close but still too early. Also, I just realized this video is 4 years old...

@cafuflores

5 жыл бұрын

Wait what... Hahahahahah

@frenkie6446

5 жыл бұрын

Idiot

@Redditard

5 жыл бұрын

Algorithm Gave me this to day

@poseidon9103

5 жыл бұрын

me too, but it was pretty cool

3:43 - although I suspect I've gone too early .. nope, was spot on.

im goimg to save this for Saturday

The fact you have a permanently installed chaotic pendulum in your house is the single most hilarious and awesome thing I've seen all year.

3:39 but at least 4 years late. I loved this chaotic pendulum in my physics classroom.

Is the period time still predictable? The black bar seems to swing to either side still in rhythm, although sometimes delayed and faster swing than other times.

I don't understand how such a chaotic pendulum is possible

4:11 I think it stoped

@pigpuncher1045

5 жыл бұрын

Lol

@anandsuralkar2947

5 жыл бұрын

U r too far

@TemploV

5 жыл бұрын

I think the second bar will flip twice clockwise before stop flipping

@TemploV

5 жыл бұрын

Fuck. it flipped once before stop

2:33, fuck.. He said that if I pause the video I must comment the timestamp

@eriknestaas2270

7 жыл бұрын

lol

I was waiting for the time, that it would flip in the lowest possible position and as slow as possible. That meant that it had exactly enough energy to flip, but it would lose some of it so it would not be possible to flip again

Somehow this video popped up right after I randomly thought about chaotic pendulums.

2:33 had to go to the bathroom

@ThatNathDude

4 жыл бұрын

Weak

Missed it, was certain it could flip again.

3:30 and I just saw someone else with the same time 😂😂😂😂 those 2 seconds of non flipping is getting to our head even tho we're well aware it's too little time to judge

July 1st 2020 at 12:22:34 Pacific. I really hope no one else watches this video because thatd definitely be the last time we see that pendilulum flip

Fuck I thought she had another one in her.

@joshuacleverley3929

6 жыл бұрын

Yeah same xD

@guepardiez

6 жыл бұрын

She?

I was like gambling saying "one more flip" and i missed it entirely

I have a chaotic pendulum app from the game store, and it's awesome! 🖖

3:49 - Looks like it's finally lost enough energy now. The black section isn't going more than a few degrees either way and it's been about three seconds since last pink flip, with it looking like it just can't make it any more.

This is a chaotic pendulum, it's motion is---WHACK

0:15 : "Chaotic means there is no equation you can come up with... which will give you the position of the arms in the future in a reliable way." This statement can be misleading for the uninitiated. You're technically correct, but that is not the reason of Chaos. You can definitely come up with the "certain" equations. Reason why chaos happens is because you don't know the exact value of the "Parameters" and/or the (initial) "Variables" which you have to feed to the equation. And since the equations of such systems are non-linear, small mistake in these parameters/variables can propagate to big changes, and so the system becomes unpredictable over long period of time.

@eelcohoogendoorn8044

5 жыл бұрын

Nope. Computing the future state is not only impossible in a physical sense as you suggests, It is impossible even in the mathematical sense. You can come up with the differential equations describing the evolution (obviously), but you cannot write down an equation that explicitly computes the state as a function of any given point in time. Series expansion with infinite number of terms, or timestepping with infinitely small steps will do you no good. Given that there is no analytical solution, whatever scheme you propose for advancing such a solution through its algorithmic steps, will serve the same role as physical unknowns/disturbances.

@chiranjitray760

5 жыл бұрын

@@eelcohoogendoorn8044 I think he meant the same thing you said...that we can get a general differential equation of motion but that is pointless in mathematical sense also as we can't get the particular equation that can predict the space coordinates from time coordinates

@eelcohoogendoorn8044

5 жыл бұрын

@@chiranjitray760 His literal words are strictly about uncertainty in initial conditions, like a physical measurement problem; but even given mathematically exact initial conditions, it is still mathematically impossible to extrapolate to arbitrary timepoints in a convergent manner. And contrary to what is stated, yes, that is the essence of chaos in a mathematical sense.

Today is 08/02/2021!

3:52, NGL... Clever sh^t mate!

3:32 I can already see it flipping again fml

@IssaalaaRacing

4 жыл бұрын

I had the same guess lol, flips a thousand times rigjt after that.

@TheTechAdmin

3 жыл бұрын

Same

3:44 Edit: Steve's face while looking at the pendulum is beautiful

@BobSmith-pl6sm

4 жыл бұрын

@@funtechu I want Steve to look at me like he looks at the pendulum

If you wanted "before the final flip, without going over," you could've just said. "The Price is Right rules." (3:37, btw)

3:31 was my pause, saw it slowing down quite a bit but just as i paused it it flipped once more, however, no lying!

So what if you used the chaotic pendulum in a vacuum and put it in the exact same position?

@tennicktenstyl

7 жыл бұрын

Plank's Brother, Mike you still couldn't really recreate it

@alienplatypus7712

7 жыл бұрын

Plank's Brother, Mike like he said, not unless you could get every single molecule in the right place. (And the whole thing to exactly 0 kelvin, which isn't even possible) Since chaotic systems rapidly amplify any differences in starting conditions.

@jarrettmosco9624

7 жыл бұрын

Plank's Brother, Mike Yea like if a robot set the position

@Skeleton43

7 жыл бұрын

HumorVortex Mosco A Robot will not be able to be precise enough :/ To get it to do the same thing, The position would have to be precise by micrometers, if not even nanometers

@jaydenh5748

7 жыл бұрын

read comment again. 100% faceplam

3:02 i paused to go to the toilet...

3:51. In the spirit of honesty I initially went to pause it at around 3:40 but it flipped like crazy just as I was tapping the screen so I stopped 😂

A butterfly beats it’s wings in the Amazon.. Steve Mould’s pendulum flips an extra time..

Please Do a triple pendulum!

No one: Weebs with butterfly knives: 0:50

@unioprefec

5 жыл бұрын

That is literally my friend

@fyxel6848

4 жыл бұрын

Literally me.

@kacperozieblowski3809

4 жыл бұрын

LMFAO!

3:50, funny how predictive it is, estimating how much energy it has left !

3.31 brilliant channel mate..captivating fun..thanks

3:38

@Archiekunst

8 жыл бұрын

+Archishman Ghosh darn it!

3:44 Okay that's pure damn luck Edit: Okay I just realized that this video is 4 years old

@TeeRexWrecksFace

3 жыл бұрын

lmao yeah me too. i paused it at 3:45. a tad late tho

@orvinal2883

3 жыл бұрын

@@TeeRexWrecksFace same

@orvinal2883

3 жыл бұрын

Same to both of you actually

@nikolaymatveychuk6145

2 жыл бұрын

Wizard! Where are my tools for making a bonfire... xD

3:31, but only because you said I had to...which immediately led to the temptation to cheat, but I didn’t and thus I was incorrect

Paused at 3:30, a couple of seconds after my guess of the final flip. Looking at the motion, I think I may have paused JUST before a flip but I'll follow the rules and comment before seeing :)

3:48 Edit. Turns out I was late. The way it seems to work is like two rods randomly moves rotational energy to each other. When the longer rod is pointing down without moving, the shorter spins like crazy. And vice versa.

I was waiting for that last flip. But it had already happened and I realized I was too late just before you stopped it XD fun video doh! Cheers.

3:00 I panicked after the first flip. It the flipped 35 times in the next 20 seconds...

Why did I never have a science teacher like you?

0:00

@katzen3314

7 жыл бұрын

damn! so close.

@kauhanen44

7 жыл бұрын

On the universal scale, everything is close.

im not here to guess, just watch you staring at it dead, like a zombie lol

3:28 seems promising, but I don't actually believe it will ever not flip anymore until the whole pendulum just stops entirely.

3:47 Pretty sure 3:43 was the last flip, but I had to wait a few seconds to make sure the pendulum had a low enough energy that it wouldnt flip again.

I just love this pendulum!! Have u built it yourself? Have you some tips to build one? Like bearings etc

3:43 and then it fliped the second i played the video :(

3:32 EDIT: damn, it flipped like a million more times

i was so entranced by this flippy thing that i forgot what i was even doing until steve grabbed it. XD

It looks like there’s some kind of motor in it (though there isn’t)

3:28... Here's to hoping Edit: Well I suppose if I learned anything from the nonlinear dynamics course I took last year, it's that this stuff really is rather hard to predict intuitively. If anyone's interested in learning a bit of the math behind systems like this, that class I took was based off a textbook by Professor Strogatz at Cornell. Strogatz's actual lectures for his version of the course are actually uploaded in full on KZread (and they ended up helping me a bit when I was studying). Searching "Strogatz nonlinear dynamics" will lead you to a neat little playlist of videos. Awesome video, by the way! Great channel, and looking forward to your other content.

3:44 Edit: dang it off by one flip

i was thinking you were going to explain that the time of the final flip isn't chaotic. because of how the system consistently loses energy

3:34 Edit: right before it spun a bunch >.

@supercooper92

7 жыл бұрын

DynamicWorlds i saw that one and then it stopped flipping for a while, I went "oh no! I've missed it, I'll have to get the next one if there is one." And then I got it right. But only by accident I guess.

I think that possibly the best chaotic pendulum I've seen. Was it bought, or home-made?

Wait a minute, that should comply with the mathematics of two object intersecting orbits. Like for example, when a larger orbiting body captures a smaller orbiting body with enough energy to eventually eject its self.

3:49 I think I missed it a few seconds before. But it may still surprise me. At least that's more than 1 second before the end of the video.

My guess is 3:32 COME ON! I unpaused the video and it just did like, 5 flips!

@alvaroaraujojorge1271

7 жыл бұрын

Naviron Ghost 8 flips

@robneitzke1048

6 жыл бұрын

Naviron Ghost SSSAAAAAMMMEEEE

3:45 - I really want a chaotic pendulum now.

3:59 is when it kinda died off and just a few seconds before that is the last flip 🤷‍♂️

3:53 Though I should have stopped sooner. (Edit: To find the exact frame just use to frame back and forth through the video, T to make larger.)

3:48 ... I think I was overly cautious this time around.

@Matio25091

5 жыл бұрын

Exactly what I did, 3:48. Should have done a couple seconds earlier

@davidhrzenjak

5 жыл бұрын

3:48 as well

3:33 This reminds me to the "Knife wielding tentacle" video...

3:39 but like some of the others, I'm late to the party. Great channel.

3:44 i feel because it's barely making it through now. Maybe 1 or 2 more.

@thedillestpickle

4 жыл бұрын

You got it

@AakashKalaria

4 жыл бұрын

@@thedillestpickle I was off by "maybe 1 or 2" 😅

3:00 Edit: Wait, I think I've messed this up

3:50 it's clear it has no more energy by that point so the last flip must have been the one at 3:44

3:51 is the point of where I think it's had it's last flip

There should be a robot and a laser scanner that can reset it precisely. This will *_really_* highlight how infinite chaos truly is.

@davidprock904

5 жыл бұрын

I like your thinking

@ariuss3009

5 жыл бұрын

What about the movement of air?

@BetterCallThall

5 жыл бұрын

@@ariuss3009 That's my point

@BetterCallThall

5 жыл бұрын

@@ariuss3009 But...what if this is rigged in a vacuum? Still would probably never be the same.

03:42 EDIT: It was the flip before the last flip xd

3:46 ...watching this in 2020. Hope I'm right: I was watching the black 'arm', thinking that both arm's combined force should be so low, that it cannot swing higher than 45° left and right anymore...I dunno exactly why, it was a feeling. Now continuing to see if I was right or wrong...

3:56, took a long time for me to be sure.

3:42 let's guess Edit: God damn it, 2 seconds later!!!!

i did stop it at 3,41 and bugger did just two more flips right after!!! >______

3:47, but I think it might have juice for a few more last minute flips

3:35 I wasn't as unsure as now ever before in my life

3:50 Though I wanted to pause earlier but by the time I had moved my finger to pause it had flipped again so I waited a bit more 😉

3:32 but just watching 1 second ahead i already see i lost lol

@chiaratomasella

3 жыл бұрын

I paused it at 3.32 too and scrolled down the comments to see if it was right or wrong XD