Coffee Cup Vibrations - Numberphile

  Рет қаралды 488,459

Numberphile

Numberphile

7 жыл бұрын

Tadashi explores coffee and tea cups to new depths...
More links & stuff in full description below ↓↓↓
Playlist of Tadashi Tokieda videos: bit.ly/tadashi_vids
Support us on Patreon: / numberphile
NUMBERPHILE
Website: www.numberphile.com/
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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
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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 KZbin 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

Пікірлер: 863
@Robin_Nixon
@Robin_Nixon 7 жыл бұрын
I love how just as the Professor explains something you immediately see where he's going and a whole load of stuff you never thought about before suddenly makes perfect sense.
@slendy9600
@slendy9600 7 жыл бұрын
same. excellent teacher he is
@bgezal
@bgezal 7 жыл бұрын
He was very elegant about the "what is sound?" sidetrack. A concise explanation and then swiftly back on track again.
@Louis-fh4sh
@Louis-fh4sh 7 жыл бұрын
Yeah he basically explained the whole concept of sound in around 20 seconds, it was impressive x)
@fossilfighters101
@fossilfighters101 7 жыл бұрын
+
@OhSoUnicornly
@OhSoUnicornly 7 жыл бұрын
I don't find him as interesting as the other people on this channel, but you're right... His explanation of sound had me going, "wow, sound is just how we perceive tiny, fast movements in the air, how weird is that? What if we could do that with all air movements? We could 'see' everything going on around us, without our eyes".
@willfreese
@willfreese 6 жыл бұрын
Because of Tadashi, I am now aware of the very low musical quality of my mug. It is almost as if the manufacturer wasn't thinking about tone at all.
@samuelthecamel
@samuelthecamel 4 жыл бұрын
What manufacturer would forget about tone?
@aurelia8028
@aurelia8028 3 жыл бұрын
How dare they! You should never buy a cup from them again xD
@unrealnews
@unrealnews 2 жыл бұрын
How would apple design a coffee mug?
@Triantalex
@Triantalex 8 ай бұрын
??.
@LangKuoch
@LangKuoch 7 жыл бұрын
Tadashi is the only man who can get me interested about cup clinking
@LangKuoch
@LangKuoch 7 жыл бұрын
also, heehaw heehaw
@reasons4171
@reasons4171 7 жыл бұрын
Lol
@perussi_gaming4459
@perussi_gaming4459 6 жыл бұрын
MOAR TADASHI
@lx4302
@lx4302 4 жыл бұрын
Useless stuff boss level
@aurelia8028
@aurelia8028 3 жыл бұрын
@@LangKuoch Hahahaha
@jacobh1995
@jacobh1995 7 жыл бұрын
6:00 "Heehaw" Take notes, guys, this some scientific stuff.
@goldjoinery
@goldjoinery 7 жыл бұрын
Wom, wom, wom.
@ZNields
@ZNields 7 жыл бұрын
I laughed so hard.
@fossilfighters101
@fossilfighters101 7 жыл бұрын
+
@Schobbish
@Schobbish 7 жыл бұрын
This is why we love him.
@Schobbish
@Schobbish 7 жыл бұрын
Hasnain Hossain double comment warning
@mikosoft
@mikosoft 7 жыл бұрын
Whoooom Whooom vs heehooheehoo - that just made me roll on my office floor laughing loudly
@baranxlr
@baranxlr 7 жыл бұрын
Japan...
@baranxlr
@baranxlr 7 жыл бұрын
*insert nuke joke*
@somberyu
@somberyu 7 жыл бұрын
+Baran Hekimoglu Oh no, not the nuke jokes! Must... resist... This is why you don't nuke a country twice. Goddamnit!
@CaseyShontz
@CaseyShontz 6 жыл бұрын
mikosoft this one goes W H O O M M M M M M M W H U M M M M M M M W H O O M M and the other one goes *heehawheehaw*
@Chewychaca
@Chewychaca 5 жыл бұрын
Full 6:00 . Whoom 6:03 . Heehaw 6:09
@leckam
@leckam 7 жыл бұрын
it was inevitably, I immediately went to my kitchen for a cup and try it... and after hearing it! I was smiling like a kid!
@numberphile
@numberphile 7 жыл бұрын
+Leckam nice work
@lalalalalalalalal567
@lalalalalalalalal567 7 жыл бұрын
I really wanted to go to the kitchen halfway through the video hahahah
@msolec2000
@msolec2000 7 жыл бұрын
I did the same!
@mrcob8453
@mrcob8453 7 жыл бұрын
hi
@d3vitron814
@d3vitron814 7 жыл бұрын
Hundredth like (You're welcome)
@kellen_mcsmellin
@kellen_mcsmellin 7 жыл бұрын
Tadashi's sound effect for an unweighted spring kills me
@Nobody-Nowhere-Nothing
@Nobody-Nowhere-Nothing 6 жыл бұрын
Kellen Dooley Sounded like doodle-bob from SpongeBob. "Mihoy-NINOY"
@Triantalex
@Triantalex 8 ай бұрын
sad to hear that.. RIP in peace yo..
@ChrisChoi123
@ChrisChoi123 7 жыл бұрын
I guess you can say he sure "handled" that problem really well.
@fossilfighters101
@fossilfighters101 7 жыл бұрын
Go home Chris.
@ankitaaarya
@ankitaaarya 5 жыл бұрын
fossilfighters101 😂😂😂😂😂😆
@aurelia8028
@aurelia8028 3 жыл бұрын
Urrrrrgh...
@chriswebster24
@chriswebster24 2 жыл бұрын
Get out!! 🤬
@PC_Simo
@PC_Simo Жыл бұрын
Going with the puns, like Tadashi, eh? 😏
@AlanKey86
@AlanKey86 7 жыл бұрын
0:41 Jaws theme!
@branthebrave
@branthebrave 7 жыл бұрын
...Or New world Symphony
@SuperAngryPacman
@SuperAngryPacman 7 жыл бұрын
If anyone's wondering, the lower pitch is E6, and the higher pitch is a semitone higher, F6.
@SuperAngryPacman
@SuperAngryPacman 7 жыл бұрын
And the tiny cup with three handles produces somewhere around an A6, and a slightly sharper A6.
@wazul7676
@wazul7676 7 жыл бұрын
Just wanted to point that out as well. :(
@gabelance1
@gabelance1 7 жыл бұрын
Ah, so it is. Do you have perfect pitch?
@stefanilserbo2
@stefanilserbo2 7 жыл бұрын
Did you find it by hearing or using some sort of instrument? It's really cool. Also, is it possible that the recording changed the pitch or it is mostrly always the same, even if recorded?
@gabelance1
@gabelance1 7 жыл бұрын
***** I'm exactly the same way. I can identify most pitches fairly easily (E and F being two of them), but other notes are harder. I think B is probably the hardest one for me. Which is kinda funny, because B flat and C aren't too difficult
@realcygnus
@realcygnus 7 жыл бұрын
this dude is always awesome.
@fossilfighters101
@fossilfighters101 7 жыл бұрын
+
@tiuk23
@tiuk23 7 жыл бұрын
6:04 Made me meditating.
@LaGuerre19
@LaGuerre19 5 жыл бұрын
Causes a lot of problems. His classes are AA (always awesome) meetings.
@maldoran9150
@maldoran9150 7 жыл бұрын
Prof. Tokieda always manages to find a topic that is both easy to get into and interesting to delve into. Fantastic teacher. And thank you Numberphile!
@98DSi
@98DSi 6 жыл бұрын
Tag yourself I'm the spring sounds *wuuOMMB WUOMmmb* _hiiho hiiho_
@noahzuniga
@noahzuniga 7 жыл бұрын
this guy is excellent at explaining things
@blue0eyes6
@blue0eyes6 7 жыл бұрын
I like the accompanying animations. Really helps me to understand the concepts
@brothas
@brothas 7 жыл бұрын
"Since we're talking about the pitch .., let's imagine ourselves in a pitch dark room" 10/10 Tadashi
@lebumbcrack7248
@lebumbcrack7248 7 жыл бұрын
never clicked on a video faster in my life love Tadashi
@adrenaldarknes3916
@adrenaldarknes3916 7 жыл бұрын
I just about spewed out my coffee when he made the 'hee haw hee haw' sound effect for the little spring. Caught me off guard lol.
@geometrydashninthlyfe5711
@geometrydashninthlyfe5711 7 жыл бұрын
6:40 "Pitch dark room" Nice pun!
@DrunkenHotei
@DrunkenHotei 7 жыл бұрын
11 people broke their coffee cups attempting this.
@InkEyes
@InkEyes 7 жыл бұрын
I didn't even know that different points would have different pitches! I was blown from the beginning! lol
@snubbelbuff1471
@snubbelbuff1471 7 жыл бұрын
I've wanted to understand this for so long!! I can die now! Thank you
@toad2390
@toad2390 7 жыл бұрын
Hi
@dave5194
@dave5194 7 жыл бұрын
that can be arranged....
@TheTechBite
@TheTechBite 7 жыл бұрын
+David -flamingsword1 The authorities are on the way to your address.
@Spiderboydk
@Spiderboydk 7 жыл бұрын
That escalated quickly.
@homerotreto9391
@homerotreto9391 7 жыл бұрын
Just give me a call. I know people...
@Conguy97
@Conguy97 7 жыл бұрын
when he made the sounds of the springs it killed me
@Nugglashine
@Nugglashine 8 ай бұрын
Tadashi Tokieda is so charming and charismatic. Very relaxing speaking voice. I could listen to him all day.
@hesgrant
@hesgrant 7 жыл бұрын
Tadashi never fails to teach me something new in these videos. Awesome stuff guys!
@DonGeritch
@DonGeritch 7 жыл бұрын
whoom whoom - said one spring heehaw heehaw - said the other
@topheye6318
@topheye6318 7 жыл бұрын
My intellectual crush: Tadashi.
@fossilfighters101
@fossilfighters101 7 жыл бұрын
Me too.
@feynstein1004
@feynstein1004 7 жыл бұрын
Toph? Aren't you supposed to be blind?
@topheye6318
@topheye6318 7 жыл бұрын
Love is blind :^)
@feynstein1004
@feynstein1004 7 жыл бұрын
***** Hahaha win
7 жыл бұрын
Make a new instrument by adding different size consecutive handles to a mug.
@Sax4565
@Sax4565 7 жыл бұрын
Or slidables handles and hammers like on a piano :D
@mistymorning2967
@mistymorning2967 7 жыл бұрын
Would it work if you just melt wax and drip it on one side of the cup and let it cool? More wax=lower pitch. And if you dripped wax to every 90 degree side of the cup the difference in the 2 pitches should be greater than if you just dripped it on one side, right? Could be a fun little experiment.
7 жыл бұрын
And a very affordable one, we should try.
@aedric
@aedric 7 жыл бұрын
I'm a Potter, and if you send me your PO box I'll send you a 3 handled cup, 5 handled, whatever you'd like!
@s0me1up
@s0me1up 7 жыл бұрын
i guess you will create those cups with your wizardry...
@StephenTack
@StephenTack 7 жыл бұрын
Only while foregoing visits to the barber.
@topstitchgirl
@topstitchgirl 7 жыл бұрын
You could sent it to his attention at Stanford's math department :)
@topstitchgirl
@topstitchgirl 7 жыл бұрын
Aedric Donovan Just know that his full name is Tadashi Tokieda.
@hsterts
@hsterts 7 жыл бұрын
From a recent video, a three handed mug was demonstrated to be homeomorphic to a torus with three holes which is homeophoric to a hole in a hole in a hole
@azyfloof
@azyfloof 7 жыл бұрын
Literally paused the video at the 45 second mark, then rushed in my kitchen to try this :D I don't know why it surprised me so much that it worked!
@mienzillaz
@mienzillaz 4 жыл бұрын
"Tadashi, stop playing around and finish your coffee" - Tadashi's mom
@MrJPEzra
@MrJPEzra 4 жыл бұрын
Tadashinis flippin’ crazy. He has the weirdest yet most brilliant demonstrations. I am so enamored by this man.
@donkeyfacekilla1
@donkeyfacekilla1 7 жыл бұрын
Love this dude always get excited when he pops up on the channel! Excellent video!
@algaedrone1833
@algaedrone1833 7 жыл бұрын
Thanks! I want to watch nothing but Tadashi's videos every time I'm on youtube!
@bouncingbeebles
@bouncingbeebles 7 жыл бұрын
I love Tadashi's explanations! His voice is so calming too!
@pacedelacruz4913
@pacedelacruz4913 4 жыл бұрын
Riveting! I so much appreciate all of your videos. Thank you so much for ALL of these.
@snortymcsnortface
@snortymcsnortface 3 жыл бұрын
I just absolutely love wathing Tadashi, he has a certain angle he approaches with the information.
@richardnixonshead
@richardnixonshead 7 жыл бұрын
Tadashi is amazing. Every explanation is crystal clear, and he makes any subject absolutely fascinating
@David-ey9tg
@David-ey9tg 7 жыл бұрын
I always love videos with Tadashi Tokieda. I hope there are many more videos with him in.
@ckannan90
@ckannan90 2 жыл бұрын
His choice of words is always so delightful!
@robertocastillo1471
@robertocastillo1471 7 жыл бұрын
Impressive explanation skills on Brady's side as well. Amazing animations and great editing
@catastrophis
@catastrophis 7 жыл бұрын
I really like this guy, I'm glad there have been so many videos with him.
@c2ashman
@c2ashman 7 жыл бұрын
Could watch and listen to this guy all day. Please make more of these videos. Very interesting topics.
@2010rix
@2010rix 2 жыл бұрын
I never noticed this...really like this guy...always blows my mind 👍🏼
@wixic111
@wixic111 7 жыл бұрын
I love the way the Professor talks, it is just so engaging
@sophia6861
@sophia6861 7 жыл бұрын
I love how the professor always explains things so nicely
@Imagine-Baggins
@Imagine-Baggins 7 жыл бұрын
How about hexaflexagons (and other shapes of flexagons) in a future video? I feel like Tadashi would really be able to do something cool with them.
@goldjoinery
@goldjoinery 7 жыл бұрын
Tadashi and James Grime should do one together, since James specialises in group theory!
@raymondrogers3797
@raymondrogers3797 7 жыл бұрын
I would love it; I never did the association! I feel ashamed; treating hexaflexagons as a compact toy for all of these years (::
@snowgw2
@snowgw2 7 жыл бұрын
Tadashi is such an excellent explainer. He just entertained me for 10 minutes with nothing but a spoon and a cup...
@nesagljivic
@nesagljivic 7 жыл бұрын
Prof.Tadashi's "lectures" make my day!
@anerky
@anerky 7 жыл бұрын
He has a brilliant way of bringing out the mathematical properties of the everyday in a non-trivial way, while maintaining intuition.
@oiytd5wugho
@oiytd5wugho 7 жыл бұрын
That's my favorite kind of science right there!
@iworms
@iworms 7 жыл бұрын
I love this professor, always finding interesting topics in everyday things!
@fierydino9402
@fierydino9402 Жыл бұрын
The animations are also awesome. The last chime is indeed beautiful 😊
@iamnobody8979
@iamnobody8979 7 жыл бұрын
The recreation of the logo on the cup was spot on.
@xilingsinqueso
@xilingsinqueso 7 жыл бұрын
Excellent. Totally love this!
@EvilAcidUK
@EvilAcidUK 7 жыл бұрын
Tadashi-San videos are always amazing!
@dft0011101000101001
@dft0011101000101001 7 жыл бұрын
Love seeing cool phenomena like this emerge from every day objects and experiences. Great stuff!
@scottwanthony
@scottwanthony 7 жыл бұрын
This video was amazing.
@pudicio4895
@pudicio4895 7 жыл бұрын
Love this guy, always has crazy stuff!
@helloworldpoland
@helloworldpoland 7 жыл бұрын
Thank you and more please!
@phillipsmith4979
@phillipsmith4979 7 жыл бұрын
Love these talks
@TommiHimberg
@TommiHimberg 7 жыл бұрын
This is brilliant! A great, easy to understand demo and explanation of the inverse problem. The inverse problem is indeed everywhere in science, e.g. in brain data analysis. The electric or magnetic field pattern the EEG or MEG (respectively) measures from outside the skull can be a result of infinitely many different combinations of sources in the brain, yet we usually want to know where in the brain the acitivity comes from, which requires a solution to the inverse problem. Basically, given the measurement of pitches, we want to figure out where the handles are in the mug. Thanks, this demo will be useful!
@TAP7a
@TAP7a 7 жыл бұрын
The vocalisation of the heavy and light springs was just... so perfect
@ToTouchAnEmu
@ToTouchAnEmu 7 жыл бұрын
I'm really enjoying this Tadashi fellow
@noblevi3623
@noblevi3623 7 жыл бұрын
Gotta find your cup with three handles? Big Rigs has you covered.
@noblevi3623
@noblevi3623 7 жыл бұрын
***** You're winner!
@ThePaull3d
@ThePaull3d 7 жыл бұрын
+Noble VI late for work? drive backwards through the buildings!
@unreal-the-ethan
@unreal-the-ethan 6 жыл бұрын
So has Cliff Stoll.
@petarbul
@petarbul 7 жыл бұрын
My favourite Numberphile video so far. Please post extras (I know it's 11 minutes long and there might not be any).
@pmcpartlan
@pmcpartlan 7 жыл бұрын
Tadashi's explanations are usually really fully formed and to the point. The only major thing I cut was a short explanation of why the cup want's to maintain it's volume, short answer: it takes a lot of energy to distort the cup like that.
@MindCraft4You
@MindCraft4You 7 жыл бұрын
Such an incredible video. Keep up the good work guys.
@Afrikoe
@Afrikoe 7 жыл бұрын
I really love this guy.
@jakejakeboom
@jakejakeboom 7 жыл бұрын
this guy's accent just makes me happy, it's so soothing
@arnauarnauarnau
@arnauarnauarnau Жыл бұрын
Wow this is one of the nicest explanations I've ever heard for inverse problems
@julianjimenez4046
@julianjimenez4046 7 жыл бұрын
Great animations! They really helps to understand how the things work. :)
@yaerius
@yaerius 7 жыл бұрын
I love professor Tadashi's sound immitations :)
@otakurocklee
@otakurocklee 5 жыл бұрын
This was really awesome!
@atorrance
@atorrance 7 жыл бұрын
Man Tadashi has always been my favorite guest on Numberphile and he never disappoints. More Tadashi!
@hrwise89
@hrwise89 7 жыл бұрын
Tadashi's point about the inverse problem with the cup is very profound and enlightening. From our point of view, the pitch of the tapping makes sense, and seems to be governed by reasonable and straightforward principles. But someone with just the pattern of sounds might never be able to determine where the handle is. It shows that there are many things we have observed in the sciences that can't be explained intuitively, and that they will require additional observations from different points of view to paint a clearer picture. Very cool!
@lasagnahog7695
@lasagnahog7695 7 жыл бұрын
Seeing a new Prof. Tadashi video makes me instantly happier.
@bradley6974
@bradley6974 7 жыл бұрын
This channel is Awesome!!
@Folko
@Folko 7 жыл бұрын
Please never stop making videos with Tadashi
@myrobotfish
@myrobotfish 7 жыл бұрын
Don't think I could've understood this without the fantastic animations ... and Tadashi's wonderful sound effects ;)
@kevalan1042
@kevalan1042 4 жыл бұрын
this guy is awesome
@chadisbad6
@chadisbad6 7 жыл бұрын
I went into this expecting to still not understand by the end, because that is how it usually is with these kinds of videos, but I got it really quick. well done video
@nicolewestercamp6949
@nicolewestercamp6949 7 жыл бұрын
Ive never been so interested in the cup that holds the coffee, just usually the liquid inside! Thank you!
@RSDDL
@RSDDL 7 жыл бұрын
this guy is amazing!
@wakethemountain9467
@wakethemountain9467 6 жыл бұрын
Awesome video!!!!
@lucanina8221
@lucanina8221 2 жыл бұрын
Amazing video
@ssiltane
@ssiltane 7 жыл бұрын
This is so cool! The best introduction ever to inverse spectral problems! Thanks!
@Fide.sed-qui_vide
@Fide.sed-qui_vide 7 жыл бұрын
It is a cup of harmony, and sounds great!
@a.thiren2459
@a.thiren2459 7 жыл бұрын
I can't belive i haven't noticed this before! Thanks!!
@Coldo3895
@Coldo3895 7 жыл бұрын
Sir you are awesome !
@janislogins1438
@janislogins1438 7 жыл бұрын
i love how he explained what sound is sound in like 5 seconds. great repect
@jnhrtmn
@jnhrtmn 4 жыл бұрын
Tadashi is awesome.
@rukiddin0669
@rukiddin0669 7 жыл бұрын
That is awesome. Never thought about this before.
@shevek5934
@shevek5934 7 жыл бұрын
I could listen to his voice all day.
@duckless8307
@duckless8307 7 жыл бұрын
Love this guy
@Mooncake69420
@Mooncake69420 4 жыл бұрын
So insightful
@carlacamargo4158
@carlacamargo4158 7 жыл бұрын
Ótimo vídeo, como sempre.
@likeatombomb
@likeatombomb 7 жыл бұрын
I love the animations of your videos Brady ^-^
@spcartermtu
@spcartermtu 7 жыл бұрын
I work in sound and vibrations as an engineer and this is a pretty awesome introduction into vibrio-acoustics and mode shapes. Great job!
@TheArgusPlexus
@TheArgusPlexus 7 жыл бұрын
When it finally clicked in my head what he was trying to tell me, I just couldn't help but smile. I love learning new shit.
@gtjames77
@gtjames77 7 жыл бұрын
I literally had this set as a problem in one of my university exams! I remember scratching my head for hours over it, but this explains it so well! :)
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