Strange Spinning Tubes - Numberphile

Подписаться 4,5 млн

Просмотров 514 тыс.

50% 1

Tadashi is back with more mathematical toys - this time small tubes which do intriguing things when they spin.
More links & stuff in full description below ↓↓↓
Extra footage from this interview: • Spinning Tubes (extra ...
More Tadashi Tokieda videos: bit.ly/tadashi_vids
Film by Pete McPartlan (who did the animations) and Brady Haran.
NOTE: Due to the limitations of cameras and RU-vid compression, we adjusted some frame rates in editing in an attempt to better show the spinning tubes as they appeared to the naked eye. Still not sure how well we did, so please take Tadashi's word for it when he describes what we see! The best thing to do is make one yourself and just try it... It's actually quite easy.
Support us on Patreon: / numberphile
NUMBERPHILE
Website: www.numberphile.com/
Numberphile on Facebook: / numberphile
Numberphile tweets: / numberphile
Subscribe: bit.ly/Numberphile_Sub
Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): bit.ly/MSRINumberphile
Videos by Brady Haran
Brady's videos subreddit: / bradyharan
Brady's latest videos across all channels: www.bradyharanblog.com/
Sign up for (occasional) emails: eepurl.com/YdjL9
Numberphile T-Shirts: teespring.com/stores/numberphile
Other merchandise: store.dftba.com/collections/n...

Наука

Опубликовано:

4 июл 2024

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 576

@geoffcunningham6823 8 лет назад

Your animation person is utterly fantastic. Attention to detail: A+

@numberphile 8 лет назад

+Geoff Cunningham that's Pete

@xnick_uy 8 лет назад

+Geoff Cunningham I think the same!!

@Mr8Ix 8 лет назад

+Geoff Cunningham What softwares can do this kind of animation?

@pmcpartlan 8 лет назад

+Geoff Cunningham Thanks, glad you enjoyed it.

@pmcpartlan 8 лет назад

+Mr. 8I Mostly Blender3D.

@jasondoe2596 8 лет назад

Videos with Prof. Tadashi Tokieda are always fascinating - and with just the right amount of wizardry and humour. Also, Pete's Blender animations are *incredible*, they really make the concepts of the video easy to visualise... It must have taken a tremendous amount of work!

@Toobula 8 лет назад

That, my friends, is how you teach.

@puupipo 8 лет назад

Ok, I haven't even finished watching the video yet (2 minutes remaining) but I just had to pause for a moment and say this: *The animations are fantastic!* They are extremely helpful in demonstrating what Tadashi is saying and really show how complexly you can look at the movement of the spinning tube. Thank you!

@Triantalex 9 месяцев назад

@spinvalve 8 лет назад

If orange is the new black, then Tadashi is the new James Grime.

@ardenvarley-twyman8352 8 лет назад

Nobody can replace James Grime. );

@josevillegas5243 8 лет назад

+spinvalve each are great!

@gokiyono 8 лет назад

+Arden Varley-Twyman Tadashi can

@McJaews 8 лет назад

+spinvalve Why would we need a new James Grime?

@culwin 8 лет назад

+McJaews It's a series of Grimes

@cheongziyong8871 8 лет назад

Love this guy. Like if you agree we need more of him

@tenorsaxophone2012 8 лет назад

YES

@EternalBooda 8 лет назад

+Cheong Ziyong I can see why a video like this would take more time and therefore not come up very often. That was an awful lot of illustration done in this video. But yeah, I love this guy.

@logicallyvalid 8 лет назад

+Cheong Ziyong I sure would like more FOOTage of him!

@cheongziyong8871 8 лет назад

+logicallyvalid Ba dum tssss

@EliasBorchert 8 лет назад

+logicallyvalid I don't get the "foot man" thing

@tocosw2888 3 месяца назад

Tadashi takes everyday playing around and explains it. Not with numbers, but step by step explanation of curiosity. He's the first mathematician that I understand

@Pumbear 8 лет назад

This guy is the coolest guy of all the guys

@heyandy889 8 лет назад

+Sander yes yes very cool guy

@jawwad4020 6 лет назад

agreed!

@Triantalex 9 месяцев назад

false.

@carlhopkinson 8 лет назад

This guy explains this with exceptional clarity...must be a fantastic math professor!!

@PixelOutlaw 8 лет назад

Wow, what a low cost toy to make! A few feet of PVC pipe from the hardware store and you could have a fun gift for a large group of mathematicians or students.

@numberphile 8 лет назад

+PixelOutlaw better than low cost... for the slow motions, i went my hardware store and asked them to cut the pieces to size... then they just gave me the small bits and said "no charge".

@U014B 8 лет назад

+Numberphile Of course there's no charge. PVC is an insulator.

@aajjeee 8 лет назад

+Noel Goetowski but what if you rub it with fur?

@U014B 8 лет назад

aajjeee Ooh, kinky.

@jasonfaulkner8644 4 года назад

@@U014B Oh damn! Respect Noel.

@CoolGuy55000 8 лет назад

"Tadashi's toys" Does this mean that we'll see more of this awesome dude?

@brandonthesteele 8 лет назад

The visual aids lend a lot of clarity to what Tadashi is talking about. Props to Pete McPartlan

@40GallonTophat 8 лет назад

For whatever reason, this has been, by far, the most interesting video to date.

@numberphile 8 лет назад

+Munkybut glad you liked it

@TakeWalker 8 лет назад

I love this guy's videos so much. It's like... why would you need to describe this motion mathematically? And his answer is "Because we can." :D

@pfeifenheini 8 лет назад

Those animations are amazing. Making it nearly impossible to NOT unterstand everything. =)

@N3bu14Gr4y 5 лет назад

I've been studying physics and mathematics for 22 years, and it still manages to surprise me. You guys should do a video about 1-dimensional cellular automata. Bonus points if you apply the method of defining 1-D rules to 2-D CA.

@amarug 8 лет назад

Amazing explanations, animations and slowmo footage :)

@numberphile 8 лет назад

+Null cheers

@Bluesruse 8 лет назад

+Null And accent.

@paxpacis2 8 лет назад

+Null FOOTage

@danosa88 8 лет назад

this is why i love Tadashi, he can explain complex motions so clearly. I wish ALL math teachers had such gift. Gracias Numberphile!!!

@veloxsouth 8 лет назад

I like Tadashi's interviews. He always gives such deep insight into such seemingly simple questions.

@Antediluvian137 8 лет назад

This is brilliant. The animations complement Tadashi's explanations perfectly. A true pleasure to hear the man speak. Would love to see more!

@boRegah 4 года назад

This man is so chill.

@MarkHatlestad 8 лет назад

Fantastic video! Loved the explanation, and the animations as well!

@Tomyb15 6 лет назад

Everything about this video is fantastic. From the thorough and satisfying explanation to the on point animations.

@stellarfirefly 8 лет назад

This is the most detailed and yet most accessible explanation of this phenomenon that I've ever seen. Kudos to both Tadashi and the graphics animator(s); they did an excellent job!

@amrsaber5457 8 лет назад

That's actually very beautiful, the animation the explanation, applying theorems and every thing ... that's for sure one of the best videos I have ever seen :)

@am2schmarvelous 8 лет назад

I LOVE Tadashi videos. He's always surprising me with cool things.

@Biped 8 лет назад

Props to Pete for the awesome animations. I can only imagine how much work that must have been.

@ThommyTheThird 8 лет назад

These animations really are something else! They go with the explanation perfectly, resulting in a really good video.

@fd7231 Год назад

Oh my... I don't know what I would give to go back in time and have him as my professor of analytical mechanics!! This is a FANTASTIC lesson on the motion of rigid bodies, a notoriously complex and traditionally very poorly taught topic. It is delivered here in such an understated and captivating style, with absolute crystal clarity and amazing animations. This is how physics (in this case) should be taught. Truly impressive. Thank you so much.

@koolguy728 8 лет назад

Great animations for this one! These are some tough things to visualize but you've done a fantastic job

@macronencer 8 лет назад

It may by now sound like a broken record, but I too would like to praise Pete McPartlan for a superb job on the animations. They really are spot on, and added significant clarity to the video. Nice job!

@IstasPumaNevada 8 лет назад

I figured it out before he explained it! And then the animations and slow-motion were excellent tools for explanation. Very engaging video for such a simple little thing. So cool.

@Scheezle 8 лет назад

Very interesting and mathematical subject, awesome presentation in practice accompanied by clear and easy to understand graphics make this the best Numberphile video to date. Thanks a lot Tadashi and Numberphile, this has been a treat.

@rhythmandacoustics 5 лет назад

Mind -blown, great explainer also! A mathematician that did not make me feel bored!

@arturrosa3166 7 лет назад

I love Tadashi videos. I wish you had more of him. His topics are so interesting and so well explained.

@GraveUypo 8 лет назад

this is why i subscribe to this channel. i've have seen a few videos on this tube trick, but ALL of them only went as far as 3:48. this is so much more complete. love it

@riturajseal6945 4 года назад

This is a very nice application of rotational motion, a very unexpected one.

@larreus 8 лет назад

Thoroughly enjoy your videos. You have a phenomenal ability to break complexity down to its constituent parts allowing the layman to understand. And gorgeous animations :)

@TheGreatNordini 8 лет назад

Great animations on this one!

@laurentmeunier7823 8 лет назад

Wow your animations are becoming really good ! Super clear

@theSumanDatta25 8 лет назад

Fantastic animations by Pete, very well done. I wouldn't have understood the video without them.

@MrAgility888 8 лет назад

These animations really helped with the explanation. I don't think I would have been able to understand it without them.

@beakeclipse 8 лет назад

This would be a great way to teach kids about relative velocity in either a calculus or engineering/physics course.

@adeel256 8 лет назад

love it how he draws you in with mystery and then explains the math behind it. also excellent animation

@StephenTack 8 лет назад

Tadashi is my favorite, and this is really well done! Great animations/diagrams.

@MichaelBoratko 8 лет назад

This is a great video, as always Tadashi is awesome, and the animations really are excellent here!

@alexeifando747 8 лет назад

A perfectly clear explanation, especially the important point in the end about the cusps. The animation is superb and greatly helped understanding. Numberphile ftw!

@rchandraonline 8 лет назад

There is definitely something invovled in "preferred frequency" because of the camera sampling rate (could be 30 Hz, maybe 60 Hz, etc., in other words, one of the standard video frame rates), so what we see on video is going to be somewhat different than what an eyeball would see. So when I see the tube with the 4:1 ratio, I don't stably see 4 of the color, because it's kind of beating against the camera's sampling rate.

@raptokvortex 8 лет назад

+rchandraonline They mentioned adjusting it in the description to try and reflect what they saw. So it should be okay...

@sebastiansimon7557 8 лет назад

The animations are great and extremely helpful in understanding this!

@ParasaraSridharDuggirala 8 лет назад

Being an educator, I try to imitate Tadashi during my demonstrations. But this one! whoa! I wont even attempt! Explaining things with such clarity and awesome graphics takes way too much effort and genius. Awesome video Brady!

@GoBobe 5 лет назад

I love Tokieda Sensei!!! He brings a whole new view to Numberphile by combining a little bit of physics in with math theories in these real-world applications, or I guess I should say toys. Each video with him makes this whole channel seem much more substantial and applicable in the real world than most math theories are on their own. Not to say the other professors aren't superb on their own, I'm just saying that Tokieda is very unique when it comes to teaching style and it's his and Cliff's videos that I get the most excited for on this channel.

@celkat 8 лет назад

Brilliant expose and analysis. Thank you for these videos Brady!

@samtam721 8 лет назад

Must appreciate the efforts taken to make those animations... Fantastic

@ItsAlundra 8 лет назад

Wow, the explanation with the animation made it painfully obvious how it works as if I should have known this.... Amazing work.

@lineikatabs 8 лет назад

I adore Mr. Tokieda! Such an amazing teacher. You're lucky to have him.

@jimandtim1656 7 лет назад

One of my favourites in Numberphile!

@michaelrivera131 8 лет назад

Tadashi's explanation goes above and beyond anything I could've ever imagined. That man sure is a master of his craft.

@jawwad4020 6 лет назад

I really really love the animation! Simply brilliant man- all was crystal clear!!

@buzhichun 8 лет назад

Excellent video. Understandable, clear and complete.

@Keex11 8 лет назад

Brilliant explaination and illustration. Very nice.

@mrNico1902 8 лет назад

Anazing animations and his voice is so amazing omg, so good explaining aswell. :)

@coreyredmon5611 8 лет назад

Really good job to whoever did the animations.

@taylormoss6037 8 лет назад

I thought I wasn't going to like this video because I have seen this before, but the animations made it worth it for sure.

@AsukaYaoi 8 лет назад

I love how Tadashi amuses me everytime, i really enjoy these videos ^^

@GhilledM21 8 лет назад

Wish our educational system had graphics as clear and brilliantly done as this, it would make concrete concepts so much easier to grasp.

@uiuiuiseraph 8 лет назад

This channel is pure awesomeness

@splodeyferret 3 года назад

This video explains a very difficult concept amazingly well.

@minibuscus2 8 лет назад

I love Dr tadashi, cliff stoll and all your geometry videos

@TheManFromElBeasto 8 лет назад

I've spent many hours staring a my bicycle's front wheel trying to imagine that the top of the wheel was going twice as fast a me, while the bottom of the wheel was stationary. Thanks Numberphile :-)

@markw6031 8 лет назад

One of the better videos I've seen in a while.

@Theraot 8 лет назад

Great visualizations! kudos to the animator.

@atiff8717 8 лет назад

The animation helps a lot... keep up the good works

@djdeluxe76 5 лет назад

„The velocity is zero at the point of contact - because that‘s what rolling means“ man I love this guy ^^

@AlanKey86 8 лет назад

Dirk from Veristablium did a video on this a few years back! wQTVcaA3QPw Tadashi take this to the next level though :)

@yousorooo 8 лет назад

+AlanKey86 Well since Tokieda is a real Professor and the director of mathematics in University of Cambridge instead of a normal RU-vidr, I would expect a better quality from him :)

@Bormeir 8 лет назад

+Derek Leung Dirk has quite a scientific background aswell!

@ThePizzabrothersGaming 8 лет назад

veritasium*

@glittercatstudios 8 лет назад

+ThePizzabrothers Gaming He was being ironic. The other guy simply misspelled it. If you hadn't pointed it out, I would have. ;P

@noahfasoformoso 8 лет назад

+Carla René Do you listen to Hello Internet.

@MJHellmannSci 8 лет назад

Excellent and understandable explanation. Thank you!

@jackstacks3989 8 лет назад

Great video, this man is wonderdul and eloquent in his explanation.

@otakuribo 8 лет назад

I love these animations; I love Tadashi; you guys did an outstanding job! 👍

@TrasherBiner 6 лет назад

Tadashi makes the most interesting math things. I remember the one with the balloon. All his experiments seem to involve materials in 3d and how they appear to us. I find this exciting. Keep it up Tadashi. I know I arrive late to the party, but nevertheless.

@jasonfaulkner8644 4 года назад

This is insanely smart. Insane, meaning: I can learn it, but I can't memorize it beyond about 3 hours. Too smart for the average brain (respect re: Tadashi). I am glad its available for reference. Great animations.

@dan339dan 8 лет назад

I love channels that don't include click-baity titles. :) The click-baity title of this video would be something like "5 magical properties you want to know about this mysterious spinning tube"

@UltimatePerfection 8 лет назад

Love episodes with this man. He really know how to teach, I learn so much!

@srenjensen2836 8 лет назад

very god explanation, and fantastic illustrations! thumbs up for making us understand the first time!

@umcarainteressante 8 лет назад

Amazing explanation and animations, wow. Tadashi's so cool.

@kyukyu5982 2 года назад

I catch myself re-watching Tadashi's videos so much. What a profound understanding that we are literally surrounded by puzzles and mystery at all times. Simple interactions that are easily glossed over become beautiful complex systems under observant eyes that blossom out from curiosity and creative thinking. My world becomes even more complex and nuanced every day I become more aware of what that world really is. Awareness has brought a lot of pain to my life, being able to see the deeper fabric of systems that are interconnected means seeing all the ugly that is obfuscated by the veil of illusion. but it's has also brought back child like play and curiosity and has solidified a desire to keep engaging with my surroundings and grow the beautiful and joyful parts of my existence on planet earth. I might just be a melodramatic fan boy... So forgive me! Regardless! Thank you for sharing your knowledge with us all, I don't think many people realize just how special it is that there are people out there who want to share the wisdom/skills they have acquired in life without making people prove they are worthy of possessing the knowledge. I hope this part of the internet never changes!

@Ravlen1 8 лет назад

As everyone says, Tadashi is fantastic, and the animation really nailed it!

@HunterJE 8 месяцев назад

An interesting note on the "floor-ceiling" symmetry mentioned - you can sort of see that effect if you look really closely in the original tests, from certain angles (e.g. around 0:23) you can see a little bit of the inside of the tube, and can indeed see the "wrong" color there intermediate between the "right" color bands from the part of the stripe on the inside of the tube...

@lawrencecalablaster568 8 лет назад

Mr Tadashi, you are an awesome mathematician! :)

@Skip6235 8 лет назад

I love Tadashi's videos!

@geonerd 8 лет назад

Love this guy's stuff. :) MOAR PLEEZE!!

@Hexxoone 8 лет назад

I'm glad I went to watch his lecture on RU-vid after the uploaded his previous videos.

@reubs9730 8 лет назад

he can explain anything so well!

@mrZbozon 8 лет назад

More of this guy and the great animations.

@user-yw4cf3yd2w 8 лет назад

these animations are amazing!

@JonLikes2Jam 4 года назад

cycloid is beautiful.., thank you for the illustration

@simi1911 8 лет назад

Your video si super! New things learned today!

@TheSLK66 8 лет назад

Nice, I really liked that cycloid explanation.

@stephenhicks826 6 лет назад

The cycloid explanation was brilliant.

@palinironthumb8522 8 лет назад

Awesome video! Will watch a few times more to actually understand :D

@KirbyEatsYu 8 лет назад

absolutely fantastic video

@sk8rdman 8 лет назад

I remember experimenting with this a little bit in my youth. I also recall Veritasium doing a video on this phenomenon. Although I pretty much already understood what was going on here, this video exceeded my expectations, and shined some new light on the phenomenon.