Heesch Numbers and Tiling - Numberphile

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  • Опубликовано: 21 окт 2024

Комментарии • 637

  • @corncolonel9171
    @corncolonel9171 5 лет назад +734

    The sound effects make me really happy

    • @f_f_f_8142
      @f_f_f_8142 5 лет назад +27

      If you like math and clicking sounds check out 3Blue1Browns latest three videos.

    • @rcb3921
      @rcb3921 5 лет назад +9

      I'm really struggling for some appropriate onomatopoeia. Splock? Maybe going to SplockaSplockaSplocka when it gets fast?

    • @furiousxXxpyro
      @furiousxXxpyro 5 лет назад

      Your profile picture does with me too

    • @corncolonel9171
      @corncolonel9171 5 лет назад +1

      @@f_f_f_8142 3Blue1Brown is amazing

    • @JivanPal
      @JivanPal 5 лет назад +5

      @@rcb3921, how about "clack"?

  • @rosiefay7283
    @rosiefay7283 Год назад +242

    I look forward to a follow-up showcasing Smith and Goodman-Strauss's aperiodic tile!

    • @reversev9778
      @reversev9778 Год назад +2

      I really hope they do it

    • @wizardinthenorthable
      @wizardinthenorthable Год назад +3

      Came here to add my excitement. I do hope it is something they make a video on, I got sent the news by my brother and was surprised I hadn't heard from numberphile about it.

    • @erizwidodo9926
      @erizwidodo9926 Год назад +1

      Yes, I can't wait for that too!

    • @eatingsfun
      @eatingsfun Год назад

      Yeeepppp

    • @maiconfaria
      @maiconfaria Год назад

      Hold my beer!

  • @ZerofeverOfficial
    @ZerofeverOfficial 5 лет назад +1016

    Can we just have a moment for how tight the animations on this channel are?

    • @squeakybunny2776
      @squeakybunny2776 5 лет назад +15

      Number 4 has a bit of overlap which slightly bothered me if im really honest and the fifth heesch number animation is incorrect...
      Still satisfying tho

    • @andioop6686
      @andioop6686 5 лет назад +4

      Omg ZeroFever I didn't expect to see you here!
      *glad you also like numberphile heheheh*

    • @ZerofeverOfficial
      @ZerofeverOfficial 5 лет назад +2

      @@andioop6686 OMG whats up Rocky!!! and yeah, Im addicted to math videos :D

    • @xl000
      @xl000 5 лет назад +1

      If you look closely, it wasn't that tight.
      But I doubt the animators will use some real animation software like SideFx Houdini to make the animations so that it never overlaps

    • @TIMExBANDIT
      @TIMExBANDIT 5 лет назад +1

      Heesch number shirts/hoodies would be hella cool

  • @nzlawless
    @nzlawless 5 лет назад +103

    that editing looks like a load of work, super well done and I would never have understood this without it. Massive props!

  • @terrahyde217
    @terrahyde217 5 лет назад +19

    Casey Mann was my undergraduate advisor in mathematics 6 years ago. He's a really cool dude. And he does a LOT of work in tiling theory that turns out to be really interesting.

  • @pickachu463
    @pickachu463 5 лет назад +251

    Make a 10 hour version of tiling with those sweet sound effects

    • @TruthNerds
      @TruthNerds 5 лет назад +14

      ASMR infinite aperiodic tiling…

    • @alveolate
      @alveolate 5 лет назад +2

      go full production value and tile them with actual wooden/plastic blocks too.

    • @nowonmetube
      @nowonmetube 5 лет назад

      Why does this make me laugh so bad 😂

    • @markiyanhapyak349
      @markiyanhapyak349 5 лет назад

      Ha • hA. 👌🏻 😅 👌🏻

    • @Triantalex
      @Triantalex 11 месяцев назад

      ??

  • @RC_Engineering
    @RC_Engineering Год назад +32

    They recently discovered a 13 sided shape that infinitely tiles the plane without repeating! I can't wait to see the video on it

  • @JJ-kl7eq
    @JJ-kl7eq 5 лет назад +354

    Wow, this explains so much about The Dark Knight.
    Heesch Ledger was one crazy, unbalanced tile.

  • @MrBrain4
    @MrBrain4 5 лет назад +14

    Love content about tilings! This is the area of mathematics I have done the most research in, and there currently seems to be very little overall information about tilings on RUclips.

  • @SendyTheEndless
    @SendyTheEndless 5 лет назад +2

    Those Heesch Shape Tiling sequences are extremely satisfying. Please, an entire channel dedicated to them!

  • @jeremysimmonds5213
    @jeremysimmonds5213 5 лет назад +49

    the animations are amazing please keep it up!

  • @TheWhitePianoKeyProductions
    @TheWhitePianoKeyProductions 5 лет назад +297

    Yellow is touching the red at the top at 3:50 or is that okay?

    • @ShayBowskill
      @ShayBowskill 5 лет назад +254

      It's not okay. That yellow tile is supposed to be green. Time to riot!

    • @TheWhitePianoKeyProductions
      @TheWhitePianoKeyProductions 5 лет назад +2

      @@ShayBowskill but even then it doesn't work though? or it's heesch number 5, so the red doesn't need to close it totally?

    • @Party_Magician
      @Party_Magician 5 лет назад +111

      @@TheWhitePianoKeyProductions The Yellow is supposed to be a green, not the red. The red is in the right place, the whole shape is still enclosed in red

    • @Mazsi1201
      @Mazsi1201 5 лет назад +7

      @@TheWhitePianoKeyProductions it does have to be closed, i think if you changed the problematic tile to green then you could close the red boundary by adding one extra red tile where the newly green tile is touching the outside (by the looks of it it is possible to add an extra tile there, i think it would fit)

    • @AdrenalineL1fe
      @AdrenalineL1fe 5 лет назад +81

      Parker tile

  • @helpme6599
    @helpme6599 5 лет назад +826

    Nice animations. Really helped illustrate the problem.

    • @docdaneeka3424
      @docdaneeka3424 5 лет назад +19

      Nice illustrations. Really helped animate the problem.

    • @jiminapemode5873
      @jiminapemode5873 5 лет назад +8

      Nice visual sequence, really helped draw the problem.

    • @letMeSayThatInIrish
      @letMeSayThatInIrish 5 лет назад +6

      Nice problems. Really helped sequence the illustrations.

    • @jackofallmasterofnone8024
      @jackofallmasterofnone8024 5 лет назад +4

      Nice help. Really illustrated the sequence of problem.

    • @alephnull4044
      @alephnull4044 5 лет назад +8

      Nice comments. Really helped demonstrate the gratitude of the viewers.

  • @ethanjensen661
    @ethanjensen661 5 лет назад +2

    That's so beautiful. I like the sound of the tiles being placed together

  • @BeCurieUs
    @BeCurieUs 5 лет назад +133

    The cheat is so pretty! I love this kinda of mathematics at play :D

    • @tgwnn
      @tgwnn 5 лет назад +5

      The opposite of the Parker Square, if you will.

    • @andrerenault
      @andrerenault Год назад

      Parker-Taylor Tiling

    • @Triantalex
      @Triantalex 11 месяцев назад

      ??

  • @non-inertialobserver946
    @non-inertialobserver946 5 лет назад +96

    How do they find those complicated tiles, is it some complex math or just trying different shapes?

    • @ge2719
      @ge2719 5 лет назад +31

      there are methods of how to create shapes the tesselate perfectly. i imagine from the way they are talking about it there may not be say a specific way of finding a shape with specific hesch numbers.

    • @StefanReich
      @StefanReich 5 лет назад +6

      It looks like a deliberate construction really (the last one anyway)

    • @logisthenewlinear
      @logisthenewlinear 5 лет назад +12

      Graeme Evans is exactly right. When it comes to shapes with specific Heesch numbers, we don’t know of any general method.

    • @Pete-Prolly
      @Pete-Prolly 5 лет назад +4

      @@logisthenewlinear I dig your style! 😎
      So "log," if I may call you that for short, are you "common" or "natural?"🍸🤔
      (I sound like a perv 🤣 and I don't drink martinis, but I had to complete the cliché.)

    • @unflexian
      @unflexian Месяц назад

      computers mostly, the complex math comes when you want to take the jump from "this tile keeps tiling correctly in my program for as long as I've kept my computer running" to "this tile will never stop tiling ever ever never ever".

  • @matthewb2365
    @matthewb2365 Год назад +1

    Last month, there was a new tile discovered that tiles aperiodically, and doesn't require a discontiguous tile. Can't wait for the upcoming video about it!

  • @TehNewV
    @TehNewV 5 лет назад +7

    I love the look of the imaginary 4622 heesch tile. feels almost genuine in a way.

  • @bgoggin88
    @bgoggin88 5 лет назад +142

    Cheat or not, Taylor's tiling is awesome!

    • @anmax
      @anmax 5 лет назад +10

      really thinking outside the box

    • @Triantalex
      @Triantalex 11 месяцев назад

      ??

  • @yc1094
    @yc1094 11 месяцев назад +1

    Very cool to go back and watch this now out of date video!

  • @blaholtzen
    @blaholtzen 5 лет назад +3

    i really love the animation in this one, and particualrly the litte tile sound, very pleasant

  • @SaMadden99
    @SaMadden99 5 лет назад +2

    Killer animations man. It really brings the beauty of math to the forefront

  • @nolancoughlan4848
    @nolancoughlan4848 Год назад +35

    A solution to the Einstein problem has been found a few days ago, pending peer review

    • @ShankarSivarajan
      @ShankarSivarajan Год назад +3

      It has been found regardless of what "peers" think.

    • @dapcuber7225
      @dapcuber7225 Год назад +4

      could you link to the paper/proof?

    • @Pomodorosan
      @Pomodorosan Год назад

      Oh yeah I saw that one first some time ago, then was surprised to see that odd tile shown in this video from 4 years ago. I can't find it anymore though.

    • @victorcossio
      @victorcossio Год назад +1

      ​@@dapcuber7225in recent videos in this Channel you find the video about it and the information about that paper

    • @ubahfly5409
      @ubahfly5409 Год назад

      ​@@ShankarSivarajanWait why the contempt for peer review? Is the "establishment" not taking your grand theory seriously, Eric Whine-Stein? Lol

  • @TheMexicanPlatypus
    @TheMexicanPlatypus 5 лет назад +3

    I love the animations in this video! Geometry videos are always great because they're simple to visualize in video form. One of my favorite Numberphile videos :)

  • @joshua8483
    @joshua8483 Год назад +3

    And now we finally have a single tile that periodically tile!

  • @OlbaidFractalium
    @OlbaidFractalium 5 лет назад +14

    The pattern made by mathematics is really beautiful.

    • @alephnull4044
      @alephnull4044 5 лет назад +1

      THE pattern made by mathematics. I'd like to see that.

  • @llegaremosalasestrellas3245
    @llegaremosalasestrellas3245 5 лет назад +3

    I love your videos. They always show curious and interesting math problems. Today topic was really cool.

  • @xenontesla122
    @xenontesla122 5 лет назад +2

    I love that boxy acrylic fractal sculpture in the background.

  • @dudewaldo4
    @dudewaldo4 5 лет назад +2

    Great animations!!! Really really enlightening. I wish you had showed why the penrose tiling was NOT periodic through the same illustration you did for the squares!

  • @poketopa1234
    @poketopa1234 Год назад +5

    Who would win: Centuries of the world’s smartest mathematicians VS a funny looking hat

  • @walkingwriter4325
    @walkingwriter4325 5 лет назад +404

    Perhaps a dinosaur shape might work. You know, a rep-tile.

    • @Monkey-l8s
      @Monkey-l8s 5 лет назад +5

      Walking Writer HAHAHAHAHHAHAHAHAHAHHAHAHAHAHAHAHHAHAH🤣😂😂🤣😂😂🤣🤣😂😂🤣🤣😂😂🤣😂😂🤣😂😂🤣😂😂😂😂🤣😂😂🤣😂😂🤣😂😂🤣😂😂🤣😂😂😂😂😂😂🤣🤣😂🤣

    • @Pining_for_the_fjords
      @Pining_for_the_fjords 5 лет назад +38

      I think a child-shaped tile would work better. You know, an infant-tile.

    • @super_7710
      @super_7710 5 лет назад +14

      you guys lack (s)tyle

    • @angelmendez-rivera351
      @angelmendez-rivera351 5 лет назад +3

      What a wholesome thread.

    • @Monkey-l8s
      @Monkey-l8s 5 лет назад +2

      Ringo Garvin *pun* ny?

  • @nicholaspatrick4092
    @nicholaspatrick4092 5 лет назад +25

    At 3:46, a green piece at the top is miscolored yellow. The yellow piece is not touching the orange piece and is touching the red piece.

  • @ln14517
    @ln14517 5 лет назад

    These videos are always so fascinating

  • @111giodude
    @111giodude 5 лет назад +1

    Did Joan Taylor spend a summer in Santorini,Greece and get inspired? The example of a non-connected tile really reminded me of the island's shape!

  • @jtknight4647
    @jtknight4647 Год назад +2

    I’m a contractor and found this very intriguing. Makes me think of all the Ogee patterns; are these shapes also considered Heech numbers? Also puzzles must also be part of this classification of shape/numbers?

  • @WilliamLeeSims
    @WilliamLeeSims 5 лет назад

    Those animations are so on point today. Somebody spent a lot of time on those!

  • @DelDelta_
    @DelDelta_ Год назад +3

    To any new viewers, you may be happy to know that an 'ein stein' has been found! There is a monotile that covers the plane, aperiodicly.

  • @LeoStaley
    @LeoStaley 5 лет назад +1

    This is what I come to this channel for.

  • @rens1030
    @rens1030 Год назад

    Thank you and kind regards from Heesch, the Netherlands

  • @alan2here
    @alan2here 5 лет назад +5

    A bit of a hack but cut slots in the islands and tabs that jut out of some connecting bridge like pieces that with a bit for force slot in firmly at 90 degrees, you'll find wood/perspex has a bit of give. Make sure the slots and tabs account for the width of the laser beam (or drill bit).

  • @diegomo1413
    @diegomo1413 Год назад +5

    Eyy, it’s 2023 and they found a family of Einstein tiles!

  • @pruusnhanna4422
    @pruusnhanna4422 5 лет назад +50

    MC Escher would love this.

    • @mudmug1
      @mudmug1 5 лет назад +6

      Escher and Penrose inspired each other

  • @grivar
    @grivar 5 лет назад +145

    8:05 "Here in the Soviet Union"
    You've invented time travel and haven't made a video about it yet???

    • @Cashman9111
      @Cashman9111 5 лет назад +7

      he made it in an alternate universe

    • @dreska255
      @dreska255 5 лет назад +17

      He did, in the future.

    • @DackxJaniels
      @DackxJaniels 5 лет назад +7

      At the time of the event it was the USSR

    • @shruggzdastr8-facedclown
      @shruggzdastr8-facedclown 5 лет назад +1

      Did we just have a Mandella Effect moment in this here video?!?!

    • @blindleader42
      @blindleader42 5 лет назад

      Nothing to see here. Move on.
      Actually, everything to SEE here. There's no mistake. It's a video. The image is integral to the statement.

  • @Zarunias
    @Zarunias 5 лет назад +15

    Do you have to cover the diagonals (is it sufficient that the edges are completely covered or do you need to completely cover the vertexes too)? In your square example it seems that you don't have to, but in the example for Heesch number 1 you covered it.

    • @oegunal
      @oegunal 5 лет назад +1

      Intuitively, the square "covers the vertices" if you consider that there are eight squares around the center square. The diagonally placed four squares cover the vertices. I'm just not sure what vertex would be considered formally "covered" or "not covered" in this case.

    • @BobStein
      @BobStein 5 лет назад +2

      Very observant. At 3:05 the tile on the left covers a vertex that it might not otherwise have to for the 1st layer.

    • @BobStein
      @BobStein 5 лет назад +2

      @@oegunal You might say (formally) that a vertex is not covered if there are any outside points infinitesimally close to it.

    • @diabl2master
      @diabl2master 5 лет назад

      @@BobStein In the squares case *and* the teardrops case, there are outside points infinitesimally close to "vertices"

    • @oegunal
      @oegunal 5 лет назад +3

      @@BobStein yes, this seems a reasonable definition. The way I was thinking of it was: if you can draw a line segment of any non-zero length anchored at a vertex (or any point on the circumference) that does not intersect with any outer tile, then the point is not covered. Which is basically the same thing.

  • @enderwiggins8248
    @enderwiggins8248 5 лет назад +8

    What a fun new puzzle to do during English class

  • @xenontesla122
    @xenontesla122 Год назад +6

    MATH NEWS!: An ein-stein tile has been found!
    “David Smith, Joseph Samuel Myers, Craig S. Kaplan, and Chaim Goodman-Strauss have produced a single shape which tiles the plane, and can’t be arranged to have translational symmetry.” - The Aperiodical

  • @dhoyt902
    @dhoyt902 5 лет назад

    Brady Haran - the depth and breadth of your collection makes us all feel like Newton standing at the shores of Truth. You are the crown jewel of online inquisitiveness.

  • @charlottedarroch
    @charlottedarroch 5 лет назад +2

    Does taking pieces of the Penrose tiling give larger Heesch numbers? In particular, if you take several tiles of the Penrose tiling which form a connected piece and call that piece your single tile, do you get very far with that? There are obviously infinitely many such pieces to be chosen, so it's my intuition that some of them would be relatively good tiles.

  • @criskity
    @criskity 3 года назад +3

    Heesch 6 was recently found.

  • @happy_labs
    @happy_labs 5 лет назад +4

    Awesome animations! Must have been tricky to get some of these right.

    • @Ometecuhtli
      @Ometecuhtli 5 лет назад

      And the sounds! Give me more of those sounds!

  • @cainmartin4131
    @cainmartin4131 5 лет назад +1

    After watching this video, I managed to design my own tile with a Heesch Number of 1. It's based on a tetris piece with some semi circular tabs.
    It makes me think it must be easy to design new ones which work for the lower existing Heesch Numbers.

    • @edmundharriss2288
      @edmundharriss2288 5 лет назад +1

      It is a lot of fun to play with. Casey Mann's research looked as polyominoes as well as these polyhexes.

  • @tutoringwestern4970
    @tutoringwestern4970 5 лет назад +6

    I like the numberphile videos that has interesting conjectures.

  • @cogoly
    @cogoly 5 лет назад +15

    I think there is an error in the animation for the Heesch number 5. In the top part a red tile touches a yellow tile. Shouldn't the red one be green?

  • @user-xd1wl2cq5v
    @user-xd1wl2cq5v 5 лет назад +90

    that's a lot of tiles
    yeesch

    • @diabl2master
      @diabl2master 5 лет назад +10

      *heesch

    • @alephnull4044
      @alephnull4044 5 лет назад +20

      @@diabl2master r/weesch

    • @diabl2master
      @diabl2master 5 лет назад +1

      @@alephnull4044 I got it

    • @alephnull4044
      @alephnull4044 5 лет назад +1

      @@diabl2master but then why spell out the joke

    • @DeadCityJxro
      @DeadCityJxro 5 лет назад +2

      This video is amazing after smoking HashHeesch? Sorry..

  • @IllPropaganda
    @IllPropaganda 5 лет назад

    I always garner insight watching your uploads!

  • @eac-ox2ly
    @eac-ox2ly 5 лет назад

    Damn, these patterns are so fascinating

  • @themobiusfunction
    @themobiusfunction 3 года назад +4

    NOTE : A shape with heesch number 6 was discovered in 2020.

  • @Axacqk
    @Axacqk 5 лет назад +13

    Can this be used to design dendrimer molecules that won't grow indefinitely?

    • @user-qf6yt3id3w
      @user-qf6yt3id3w 5 лет назад +1

      I wonder if something similar could be used to design custom virus capsids.
      Only issue is that Heesch numbers describe 2D tilings and dendrimers and capsids are 3D.

    • @karl-leopoldkontrus6544
      @karl-leopoldkontrus6544 5 лет назад +1

      I personally believe, that you will find some Clusters in Nature with higher heesh numbers (some konfigurations of SiO2 seem to have heesh numbers over 1000 or so)

    • @user-qf6yt3id3w
      @user-qf6yt3id3w 5 лет назад

      @@karl-leopoldkontrus6544 Interesting. I'll look up SiO2 and Heesch numbers.
      I was actually thinking of proteins - I bet you'd find them with any Heesch number you wanted.

    • @karl-leopoldkontrus6544
      @karl-leopoldkontrus6544 5 лет назад +2

      Proteins would be very interesting, there are surely "numbers" which are similar to heesh numbers, but they have to be adapted somehow... a differnt repelling force for N - C and for C - C or hydrogen bonds , i think that some pc programs which try to predict forms of preoteins, use similar techniques for stacking like in the video (sry i am not a native speaker)

  • @glutinousmaximus
    @glutinousmaximus 5 лет назад

    Euler "Angels and Devils" and Penrose both did a lot of pleasing work in this area.

  • @DeadCityJxro
    @DeadCityJxro 5 лет назад

    My only complaint is that these video's are too far between each other!? Did I say that right? My favorite channel!!

  • @nickkei2838
    @nickkei2838 5 лет назад +1

    Socolar-Taylor tiling is what Parker square tried to achieve. It went outside of the rule book, some people may call it cheating, but succeeded.

  • @SendyTheEndless
    @SendyTheEndless Год назад +2

    3:50 I know this is 4 years too late but yellow is touching red at the top there! Was that a mistake? I imagine if you turned the touching red tile green, and then slotted a red one into that gap above it so it pertrudes outwards, that was the intended solution. EDIT: Also, you can probably guess why this video is trending again : )

  • @AnthonyDavid59
    @AnthonyDavid59 5 лет назад +1

    Great video to follow. My 4 year-old grandson chose to watch this with me as he liked the colours. When the question came up about the Heesch number of a circle he called it. (He might have just called the shape zero :D )

  • @TruthNerds
    @TruthNerds 5 лет назад

    I should be commenting on the amazing talk and outstanding animations.
    Yet here I am, commenting on your little piece of advertisement: I am not easily scared, but when I first heard the story of the Dyatlov pass incident - I left the light on that night…

  • @Visocacas
    @Visocacas 5 лет назад

    I was expecting this video to blow my mind with Heesch numbers for tessellating 3D solids, or n-dimensional solids. Still super cool!

  • @rickyardo2944
    @rickyardo2944 Год назад +1

    Be nice to see an episode on the the recent "Smith’s hat and turtle" tile

    • @BenjaminAster
      @BenjaminAster Год назад

      Just wait a few more weeks, they will upload a video about that!

  • @4ltrz555
    @4ltrz555 5 лет назад +39

    What about 3D tiles?

    • @fittony
      @fittony 5 лет назад +4

      cube should be infinite, but yes irregular 3D would be interesting.

    • @DeadCityJxro
      @DeadCityJxro 5 лет назад +2

      Bruh! 4D!?!?!?!

    • @axelasdf
      @axelasdf 5 лет назад +6

      Scutoids

    • @Soken50
      @Soken50 5 лет назад +1

      let's find a general rule to find 2D tiles for each Heesch (try and say that outloud a few times) number and worry about higher dimensions later yes ?

    • @anononomous
      @anononomous 5 лет назад

      Can: Worms 🙂

  • @andrewkiminhwan
    @andrewkiminhwan 5 лет назад

    Tiling is my favorite subfield of mathematics, i used to be absolutely obsessed with patterns, islamic tiling, etc.

  • @WhatforNameIsThat
    @WhatforNameIsThat 4 года назад +2

    Has this problem also been investigated in more dimensions? Do we know these shapes for 3 dimensional objects?

  • @borismize8739
    @borismize8739 5 лет назад +1

    I am a simple man.
    I get a Numberphile new video notification, I click it.

  • @alan2here
    @alan2here 5 лет назад +3

    I've got this game on IOS, it's good.
    I think there mostly/all endlessly heesh though and tile like the rectangle. The goal is to use the fewest in the first two rings.

  • @Thomasikzelf
    @Thomasikzelf Год назад +4

    Someone just discovered an aperiodic monotile, see: An aperiodic monotile
    David Smith, Joseph Samuel Myers, Craig S. Kaplan, and Chaim Goodman-Strauss, 2023. Note that this tile must still be flipped for it to work

  • @pawebielinski4903
    @pawebielinski4903 Год назад +2

    6 has been found back in 2020!

  • @benjaminnewlon7865
    @benjaminnewlon7865 5 лет назад

    Which is better, the clicks of the tiles in this video, or 3b1b's clacks in his sliding blocks video?

  • @raymondstheawesome
    @raymondstheawesome 5 лет назад +38

    obligatory "parker tile" joke for the cheating solution to the ein stein problem

    • @zimi5881
      @zimi5881 5 лет назад +6

      I wonder how far we can get with this Parker square thing. Maybe in 200 years it will be legit idiom.

    • @whatisthis2809
      @whatisthis2809 5 лет назад +2

      @@zimi5881 what does idiom mean?

    • @fortidogi8620
      @fortidogi8620 3 года назад

      @@whatisthis2809 a phrase or saying that has such a widespread meaning that you can use it and your audience will understand what you mean intuitively. for example, "needle in a haystack" for a difficult task.

    • @whatisthis2809
      @whatisthis2809 3 года назад

      @@fortidogi8620 Oh, okay thank you! don't remember ever posting this but hey, i know what it means now lol

  • @qcard76
    @qcard76 5 лет назад +6

    On the tail end of an all night studying session for Neuroanatomy... much needed break for the brain!

  • @deboogs
    @deboogs 5 лет назад

    Great episode. I have no idea how you could go about proving something like this.

    • @ferretyluv
      @ferretyluv Год назад

      According to David Smith, you just doodle shapes, cut them out with paper, and then just put them together.

  • @KirbyTheKirb
    @KirbyTheKirb 5 лет назад +1

    I´m really curious about how they found these tiles. Especially the tile with the Heesch number 5.

  • @Sylocat
    @Sylocat 5 лет назад

    Things I'm curious about:
    1. That bit about it being an "unbalanced tile" was dropped fairly quickly, how does that relate to it having a finite Heesch number? The fractions of a circle seem relevant.
    2. That tile with Heesch number 5 looks like five identical tiles stacked next to each other. What's the Heesch Number of just one of those five?

  • @InvntdXNEWROMAN
    @InvntdXNEWROMAN 5 лет назад

    Killer animation for this video.

  • @dahemac
    @dahemac 5 лет назад

    In Adobe Illustrator the discontiguous (unconnected) shape would be called “compound.” Same as a doughnut with a hole except the hole does not overlap the other part.

  • @pokestep
    @pokestep 5 лет назад

    This guy is adorable, more of him please

  • @Axman6
    @Axman6 5 лет назад

    Yeah if you could make those tilings as t-shirts, that'd be great - the tiling with Heesch number of 5 looks fantastic.

  • @FelipeHoenen
    @FelipeHoenen Год назад +1

    time to do a follow-up video about the hat, the turtle and the chiral aperiodic tiles!

  • @Drtsaga
    @Drtsaga 5 лет назад

    amazing subject!
    more tilling videos plz

  • @HonkeyKongLive
    @HonkeyKongLive 5 лет назад

    That animation of the rings was so damn satisfying.

  • @SimpleStory95
    @SimpleStory95 5 лет назад

    Did a quick google search and found the Voderberg tiling. Seems to be monohedral and aperiodic using a skewed nonagon (9-gon). Can't find a mathematical description though.

  • @ramdamdam1402
    @ramdamdam1402 5 лет назад

    Nice vid ! Its' been a long time of your vid interested me so much

  • @DanielSMatthews
    @DanielSMatthews 5 лет назад +1

    Do Heesch Numbers extend to higher dimensions? If so they could have application in biochemistry and nanotechnology.

  • @oneofspades
    @oneofspades 5 лет назад +1

    Are the tiling with as specific heesch numbers unique?

  • @kmktruthserum9328
    @kmktruthserum9328 5 лет назад

    its funny that a lot of these videos you do were just things i used to do in grade school for fun when a teach was lecturing

  • @jay-tbl
    @jay-tbl 5 лет назад +1

    How did the existing tiles get discovered?

  • @DemoniteBL
    @DemoniteBL 5 лет назад

    3:46 The yellow ring isn't completely surrounded by green. One of those yellow parts should be green.

  • @eryqeryq
    @eryqeryq Год назад +5

    Update: the Einstein problem has just been solved for a connected tile! :)

  • @roccoleader279
    @roccoleader279 3 года назад +2

    I think there is heesh number 6, i read it somewhere and am in a discord server about finding heesh numbers

  • @m1m1snake
    @m1m1snake 5 лет назад

    Damn, that Heesch number 5 is amazing, makes for some nice art.

  • @dimkadimon
    @dimkadimon 3 года назад +3

    A tile with Heesch number 6 has been found recently.

  • @drawapretzel6003
    @drawapretzel6003 5 лет назад

    that ein stein tiling at the end, thats the, the thing from the other video a few weeks ago, the trapped night? what was it, where you can tile out with triangles or something but its a non regular tiling

  • @R2Cv1
    @R2Cv1 5 лет назад +3

    3:28 are those little circular gap thingies allowed?

    • @rickpgriffin
      @rickpgriffin 5 лет назад +5

      It's the last ring so yeah, they just can no longer be filled

  • @brachypelmasmith
    @brachypelmasmith 5 лет назад

    how do you work this out (Heesch number of tile piece or vice versa)? Is it just brute forcing by computer or is there some more elegant solution?