Binder Clip Climber - Numberphile
ฝัง
- เผยแพร่เมื่อ 2 ต.ค. 2024
- Featuring Tadashi Tokieda.
More Tadashi videos: bit.ly/tadashi_...
Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): bit.ly/MSRINumb...
We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science.
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Videos by Brady Haran
Editing and animation in the is video by Pete McPartlan
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A NOTE ON THIS VIDEO:
A few of our Tadashi videos blur the already blurry line between mathematics and physics... Some people suggest they may be a better fit on Brady's dedicated physics channel (called Sixty Symbols).
In response, the reasons they are on Numberphile are:
1) Tadashi, while certainly a modern polymath, is based in a mathematics department.
2) This sub series (with its animation and extra production work) has been supported by the Mathematical Sciences Research Institute, a Numberphile collaborator.
3) Some of the previous and future Tadashi videos are more math-oriented than physics - and it just makes sense to put them on one channel rather than dividing the series between two channels on an ad hoc basis.
In a multi-disciplinary world, it is challenging to run TH-cam channels which people come to associate with just one discipline.
That said, feel free to go over and watch hundreds of physics videos on Sixty Symbols --- / sixtysymbols
Is there anything that Mr Tokieda cannot demonstrate using his feet?
Maybe a purely hands on aproach? :P
No, no there is not.
Someone should make a "Tadashi's Toes" playlist
shoes
How best to wear socks
He sure puts the "Ta-da!" in "Tadashi".
+++++
lol
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That he does!! lol
Iv4Pss not quite, apparently it's 時枝正, with the last letter being his first name "Tadashi"
Tadashi definitely should do a collab with Tim from Grand Illusions.
omg yes
Hm!
RIGHT! Everyone one of the videos with Tadashi I thought "This is a lot like watching Tim. I think the two of them would get along."
Fizzy Note heh!
What a lovely idea.
How does this guy find all these everyday oddities! He's brilliant at this...
I think Mr Tokieda just walks up to something, wiggles it a bit, taps it with a spoon, or something similar. Then discovers some subtle universal truth. Zen master for sure!
Never clicked on a vid faster than a tadashi video
What about klein-bottle guy?
+MrRoyalChicken He sure freaks me out a lot.
Klein bottle guy is too enthusiastic, i feel like he's mocking me lol
Klein bottle (Cliff Stoll) guy is totally CRAZY and cool. but I prefer tadashi
_*Feeturing Tadashi *Toekieda_
superj1e2z6 *eyyyyyy*
++
+ErikCR Jokes.
+ErikCR
Whoosh.
You missed 1 out of 1 joke in this thread. Congratulations.
hello, great video, to be honest numberphile is the reason i got interested in math
Debashis Mondal same here, it made me realize that math is an exciting field with all kinds of discoveries to be made and beautiful geometries to be constructed and now I've applied to colleges for mathematics
Malmaphazar You're in for a really good time :)
I was already kinda interested, but Numberphile really put the last nail in the coffin labeled "vocational school" for me. Now I am in gymnasium and I'm happier than I could have ever been fixing cars or shit.
Numberphile and 3Blue1Brown lol
Debashis Mondal no shame in that. schools typically do a terrible job of teaching math
As always with Tadashi Tokeida - upvoted before I even watched.
i just want him to say oh my, at least once
extraordinary!
His voice does remind me of that Takai guy from star trek.
The cartoon parts are threaded wrongly which made this a bit confusing. The cartoon has the threads going through the binder clips asymmetrically, whereas when shown in real footage they are going through symmetrically.
FINALLY MORE TADASHI!!!!!!
he is a great showman which helps him explain these things so well
TADASHI!!!
He is actually the best part of this channel
Another video by Brady,
The climber seems kinda shady.
But the physics works out,
And without a doubt,
I will make it across to my lady.
A comment in limerick format?
I believe it's the first time I saw that.
While the comment's abnormal,
I'm a sucker for formal
Experimentation, and nobody's doormat.
So you get a like.
This is a fun comment chain.
Forgive me as I struggle and strain
To make up a poem,
One that'll show 'em,
That I can, too, use my brain...
Ccccccccombo breaker !!!!!!
Tadashi playing with string on his feet
Nothing else can make me feel more complete
Yea, I am a simple dude
Just showing my gratitude
Since I've been watching this clip on repeat
Title: My Love for Tadashi
Dude I just might comment on every video from now in limerick form xD haha it was fun :)
If you're reading this, have a Great day! 😄😄😄
If you're reading *this*, you too!
If you're reading this, note that the above people are idiots.
If you're reading this you will die in at *MOST* 120 years.
The clock's ticking.
Stop putting so much pressure on me! What if I mess up and have a bad day?
Oh great, now you're on Numberphile...
Dude, these are getting repetitive.
I subscribed to this channel just to keep watching Tadashi videos
Fun video with prof Tadashi as usual! :D So glad to see this in the subscription feed
But why does it change direction when you thread it differently?
calvinhobbesliker2 Because of the way the thread goes through the holes in the paperclip. Inside->outside vs outside->inside
calvinhobbesliker2 look at the video thumbnail. notice how it is threaded. for both sides the string comes into the clip on the bottom side. that makes it go up.
Wow, congrats on the double racism.
@@CSDragon the actual photage and the thumbnail differ from the animation in the video. I understand the general principle of friction, but the details are still somewhat fuzzy.
Tadashi Tokieda is my spirit animal.
Looks like we're back with Physicsphile. Or Sixty Numbers, maybe?
I love George Tokieda's videos!
Ingenious, practical demonstrations? Check
Deep, silky smooth Japanese baritone? Check
Tadashi Tokieda is awesome!
Oh my...
I think it's time for a new calculator unboxing.
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Very interesting!
I was not expecting the foot.
Oh, I had a toy like this when I was a kid! It was a wooden kite that climbed vertically on two strings you pulled in an alternating fashion. I've been always fascinated by it. Thanks for finally explaining it, Mr Tokieda!
This guy just keeps coming up with the most fascinating phenomenons about everyday objects, and its most intriguing! Big thanks to Tadashi, and keep doing what you do!
Mr Tokieda should start a toy company and make cool toys for kids and grownups.
Just an FYI - This is probably redundant - People make jokes, because we like you - We do - we like you
This cat Tokieda's voice is dope!
this should be in Physicsphile!!
His feet will actually be the subject of the next video and interesting trivial physics will make an appearance
I know this same principe with little toy figures, that have two drill holes in their hands slightly tilted towards each other at the top.
And they worpk even if the string is not a loose loop.
It can be two strings knotted tight to the ends of a little horizontal bar at the top point.
And it works if the strings are almost vertical.
I´m pretty sure i saw this somehow that it looked like theese classic autumn decoration kites, cut out of a wooden plate and with theese holes for the string close to the side corners.
I didn't understand why which way the thread is threaded matters, is it the fibres in it or the shape of the clip or what?
Yes I don't understand that either.
The Thread in the animation is wrong on one side. The left side has to be a mirror of the right side, so that both sides of the bottom thread enter the clip's holes from the outside.
I don't get it as well, need some detailed explanation I think. :D
No the animation @3:03 is not correct.
The animation at 2:31 is wrong (in that configuration, the clip just follows gravity), but the animation at 3:03 is right. The string must be threaded as a mirror image, and it will go toward the direction that has the threads on the inside. I built my own version of this to confirm. Also look at the physical version at 3:13, you can see how it is threaded.
Tadashi videos are among the best videos on youtube. Ever. Congratulations!!!!
Mathematical sensai is back at last!
It's Tokieda sensei!! :D
Of the three presentations of his example graphics, the first two wouldn't have worked. The twine was threaded incorrectly through the left eyelet. The third was corrected though.
Tadashi's Toes.
It's funny because it's not even close to the first time I've seen this man's bare feet.
wasn't expecting a weird foot
Tadashi's Toes
tadashi please be my daddy
The foot is back!!!
awesome! !
Very nice. Logically, this one seems like it more belongs on Sixty Symbols than Numberphile, but whatevs.
lol, I think in every video I have seen he gets his feet out and uses them.
I don't understand all the jargon exactly, but my layman understanding of this is basically that when the metal ring area turns in the thread it is able to latch onto the thread because of this more intense angle, where as the angle on the other ring side is less intense and thus slides more than grabs.
Very clever.
I like his sense of humour :D
This is the best analogy for AC to DC electricity conversion I've ever seen.
I still think about this video all the time.
To me, this was a perfect display of water currents. how water goes down a stream and fish ride the up flow up. Like Victor Schauberger described. Awesome!
The animation (e.g. at 2:30) is wrong and misleading.
The thread is drawn the wrong way around on the left. It should be drawn *over* the metal on *top* and *under* the metal on *bottom*. So that left and right side are symmetrical. (so just mirrored, *not* mirrored and flipped) That wrong animation is also why I didn't first realize how it only works in one specific direction no matter the tilt.
EDIT: As GarbageGamer74 pointed out the animation @ 3:03 shows (correctly) how it works.
I contend that the animation @3:03 is also incorrect.
djmips: how so?
The string on the side that isn't 'captured' should be sliding relative to the clip. It's shown as moving with the clip. But I can see clearly from the video that this 'sliding' side is actually moving down.
Oh, yeah, the motion of the clip relative to the string is poorly approximated by that animation. The threading topology is right at 3:03 but the motion is not really right. One side (the "captured" one as you put it) does not slide, while the other one does.
Yeah I saw that too.
This is similar to how the proper spiking pattern on railroad crossties helps to resist rail from "running".
If it's a function of how he pulls on the string, why does he need to turn it all around to make it go the opposite direction?
The animation on 2:10 is not correct on the left string. However the 3:01 animation is correct
Little known fact ... binder clips were originally designed to transport paper on strings from one office floor to another through this back and forth motion.
Neat.
°☆° HI Sunshine;~) I've always liked the way he uses the most simplest props, turns them in to interesting problems and shows you the simplest way to solve them. ✌💖🤗~🌝🌎⚬ ...
How can you explain x ^ 1/0 in a Desmos Graph? I tried figuring it out but how can it give a graph when 1/0 shouldn't exist?
I would just like to point out that the visual illustrations at 2:11 and 2:31 are wrong. The thread passes through the binder clip in a symmetrical manner but it is asymmetrical in the illustration.
iNoamfer excuse me, can u plz tell me how the clip does not move upwards( but instead move downwards) when the string is inverted?
iNoamfer at 1:27
0:04, what a great art
Ikr? I would say it looks better than the animated toykieda.
There is one detail that I don't think he really mentions, it's that if you want the clip to move away from you, the "ropes" must pass throught the metal holes from the outside part of the clip towards the inside, whereas if you want it to come towards you, you should pass the ropes from the inside of the clip towards the outside part. If you pay close attention you can notice that that is what really changes when he takes the rope and puts it down on the opposite side. I hope I am making sense :P
Hol up
I missed what he does when he direction is reversed.
Any captain?
It bothers me so much that none of the animated explanations have the strings correctly passing through the binder's loops. They, somehow, manage to get it all wrong every time.
"that is rather strange"
I don't understand how turning it around makes any difference. The clip is symmetrical, right? So why would it make any difference which way it's facing?
Same question
I'm a bit late, but the side through which the thread goes in and comes out matter. If I had a binder clip handy I would try to do it myself and give a more detailed explanation, but I don't and it's 1:30 AM, so I won't try to find one right now.
"That's strange" - everything you show us, Tokieda, is strange! And we LOVE it. Keep it coming! Thank you for being awesome.
It's 1 am why are you doing this to me TH-cam
What kind of number is this?
F337
So 62263 in base 10?
+Robert Gilmour FEET!
Perunavallankumous That assumes that he uses base 16. It could also be base 17, 18, 19,... which also use the digit F but represent different numbers then 62263 in base 10.
Usually when a mathematician has to take off their shoes and use their toes, they are a very bad mathematician.....usually.
Finally A Use For Those Silly Clipz *
When I saw the thubmnail at first I thought "NEW PPAP VIDEO" Turns out to be even better...
i love the videos with Tadashi
yay!
Wow, this guy looks so similar to Jackie Chan and Bruce Lee it's ridiculous. Are they all related I wonder. What do you guys think?
for what reason is he constantly turning around the strip to change the vector of clip movement?
My hoodie string got stuck in my hoodie today. I thought it was lost for, but then I thought of this video, and sure enough, by pinching the hard bit forwards and backwards repeatedly, the hoodie string slowly inched out of the hoodie.
This guy could single-handedly (well, together with a nice woman) start a new line of homo sapiens quadrupedis!
This guy is a joy to watch. I dont know why.
For some reason the links at the end of the video aren't working for me?
Poor guy at the end
WE SAW HIS FEET GUYS
I did not give this video a thumbs up until I saw his bare foot! 😂
I thought I would go an entire day without seeing Tadashi's feet. I was wrong
One of these days I'm going to get in trouble at work for building toys out of office supplies, and it will be all this guy's fault
Is there already a video on the Golden Number Phi?
please dooooo
It's like Pi's lil bro
Robb V. I think I'd have to disagree with you on the point of phi being pi's little brother. For a start, the fact that they are phonetically similar is irrelevant, and apart from that they don't even share many similarities (although I'm sure some exist, apart from them both being irrational). If any number was going to be related to pi it would be e (which is a better number than pi anyway, in my opinion)
Tau is Pi's big brother.
Rory Macarthur To me Phi Tau Pi and e are all family
and phi is a smaller numberrrr so lil bro
e also.
Tau... is......just "a bro"
Pi and e might let phi hang with them, but phi is not part of the transcendental clique.
No. Golden Number is adopted.
Love to know how people think of this type of thing. Ummm...I kinda know actually....fiddling with things lying around.
When I see Tadashi, I'm like, I'm ready for some more feet action :{
the question is does such a method use more energy than pulling from top with a rope?
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Very cool video, just a small nitpick: I'm pretty sure static and dynamic friction play no role here. Friction is proportional to the contact force, which is larger when the string wraps around the clip, no need for fancy phenomena.
Hey can you check out this new game? Someone created a game out of conways game of life. It's called "The game of Life and Death". Really interesting game and I thought of you when I saw it.
Doesn't this basically solve the problem of how to power the climber on a space elevator? Make that 2 parallel space elevators next to each other, mount the climber so it goes up and pull both elevators up and down with 180° phase shift.
I love thees videos. my maths teacher in school told me that asians schools had extreamly good methods for teaching maths but didn't have much practical use of it while european schools have practical use of math in our school but the level of math is realy low. I always loved implementing logic in reality so Tadashi is my favourite person on numberphile :)
I don't think I get it. I mean, at what point is the clip moving up (away)? When you pull one side that side goes towards you, and the opposite one lags, because of differnt frictions, but at the second pull it negates those two movements. So why do we have net movement in one direction at the end?
I didn't know there was a debate about which channel to put this on but the answer is simple, subscribe to both Numberphile and Sixty Symbols. Problem solved, and that one was on the house.
Износ тросов и крепежных механизмов на люльке будет выше и раскачиваться будет от рывков туда сюда выше риск падения вероятность разрыва крепления или троса именно будет на люльке
I don't get it, why only one way?
Looks at video feeds. Sees a Numberphile video. Looks at thumbnail, sees it's Tadashi. Instantly Clicks video and likes.
I thought the video title was "Binder Clip Number" because this is a Numberphile video. I didn't expect no maths in Numberphile!