Squared Squares - Numberphile

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  • @ricarleite
    @ricarleite 7 ปีที่แล้ว +3053

    "Or does it?"
    "... no it doesn't."
    Dreams crushed

    • @TieMaxx
      @TieMaxx 7 ปีที่แล้ว +10

      probably too complicated

    • @distraughtification
      @distraughtification 7 ปีที่แล้ว +45

      It was probably proved to be impossible.

    • @sinner6
      @sinner6 7 ปีที่แล้ว +9

      I was hoping for a number file extra on that.

    • @dyld921
      @dyld921 7 ปีที่แล้ว +61

      "Oh..."

    • @UnitaryV
      @UnitaryV 7 ปีที่แล้ว +29

      Plex
      My guess is that the method probably isn't all that interesting either. Rather than an elegant deduction, it was probably proved by means of exhaustion, using a computer to test every way of putting the squares together, and finding that none of the configurations fit within a 70x70 box.

  • @Ryumare
    @Ryumare 7 ปีที่แล้ว +2627

    Nice flash of the Parker Square over the imperfect square at 1:24

    • @h4lo
      @h4lo 7 ปีที่แล้ว +78

      You're both right. There were two flashes, one at 1:24 (assuming we're taking the floor of the time) and another at 1:25

    • @cumberbtcheswiththehats8209
      @cumberbtcheswiththehats8209 7 ปีที่แล้ว +8

      Ah, so that's what that is.

    • @clarianken4223
      @clarianken4223 7 ปีที่แล้ว +1

      Caloom whats that?

    • @JPO1618
      @JPO1618 7 ปีที่แล้ว +29

      Check out the Parker Square video on this channel. It's a bit of a joke on Matt Parker and his imperfect Magic Square

    • @andregon4366
      @andregon4366 7 ปีที่แล้ว +6

      I was about to give a like but you have 1234 likes so I'll leave it at that.

  • @Chris_Cross
    @Chris_Cross 6 ปีที่แล้ว +396

    *"Or does it?"*
    *VSause music starts
    "No."
    *Music stops abruptly

    • @NStripleseven
      @NStripleseven 4 ปีที่แล้ว +4

      Christopher Dibbs Funny you mention VSauce, right?
      Wrong!

    • @skfok8472
      @skfok8472 4 ปีที่แล้ว +2

      @@NStripleseven haha vsauce2

  • @mysteriousinternetperson
    @mysteriousinternetperson 2 ปีที่แล้ว +103

    "Because they're nerds!"
    Wise words from a wise man.

  • @idjles
    @idjles 7 ปีที่แล้ว +941

    Brady's entire goal with this video was to troll Matt.

    • @rikwisselink-bijker
      @rikwisselink-bijker 7 ปีที่แล้ว +40

      Why not call one version that comes close 'the Grime Square'?

    • @user-me7hx8zf9y
      @user-me7hx8zf9y 3 ปีที่แล้ว +4

      729 likes... 27 squared...

    • @PC_Simo
      @PC_Simo 2 ปีที่แล้ว +2

      @@rikwisselink-bijker True 😅👍🏻.

  • @rosserobertolli
    @rosserobertolli 7 ปีที่แล้ว +1113

    A perfect squared square doesn't exist? Maybe you should let Matt Parker have a go at it! I don't think it will be perfect, but it will be at least something!

    • @joaovitormatos8147
      @joaovitormatos8147 7 ปีที่แล้ว +11

      Oh... I see what you are doing there...

    • @cubethesquid3919
      @cubethesquid3919 7 ปีที่แล้ว +21

      I'm sure he'd use 2 pi in his 'proof'

    • @utuber1789
      @utuber1789 7 ปีที่แล้ว +2

      and Chuck Norris has not started working on the problem yet

    • @PlaybyPlay225_2.0
      @PlaybyPlay225_2.0 6 ปีที่แล้ว +1

      rosserobertolli a parker-squared parker square

    • @thefamousarthur
      @thefamousarthur 5 ปีที่แล้ว

      @@cubethesquid3919 PI, NOT TAU!!!!!!

  • @YaStasDavydov
    @YaStasDavydov 7 ปีที่แล้ว +3489

    *parker square joke*

    • @Sagano96
      @Sagano96 7 ปีที่แล้ว +43

      spotted at 1:25 :3

    • @brushybrushyfan677
      @brushybrushyfan677 7 ปีที่แล้ว +28

      Sagano96 1:24 for me. but still :D

    • @tacticalkiller1
      @tacticalkiller1 7 ปีที่แล้ว +28

      Kurt Green best meme from Numberphile

    • @maciejzwolinski2381
      @maciejzwolinski2381 7 ปีที่แล้ว +3

      Yep, went t post on the spot, you were first :)

    • @BrotherAlpha
      @BrotherAlpha 7 ปีที่แล้ว +8

      As soon as he talked about reusing squares, I knew they had to mention the Parker Square.

  • @AtomicShrimp
    @AtomicShrimp 7 ปีที่แล้ว +331

    No cubed cubes - related to Fermat's Last Theorem?

    • @captainsnake8515
      @captainsnake8515 6 ปีที่แล้ว +9

      AtomicShrimp this should have way more likes

    • @theranger8668
      @theranger8668 5 ปีที่แล้ว +1

      @@captainsnake8515 Sure, but please explain what is Fermat's Last Theorum?

    • @pizzatime7431
      @pizzatime7431 5 ปีที่แล้ว +15

      @@theranger8668 i think it is a^x+b^x=c^x has no solutions if a,b,c,x>0 are integers and x>2

    • @SuperYtc1
      @SuperYtc1 5 ปีที่แล้ว +10

      It would only be ONE tiny part of Fermat’s last theorem relating to ONE tiny part of this mathematics. So no, not really, only a very small cross over.

    • @pizzatime7431
      @pizzatime7431 5 ปีที่แล้ว +6

      tiny part or not related still means related, and that was the question

  • @-fitzy-3335
    @-fitzy-3335 7 ปีที่แล้ว +1987

    OR DOES IT....
    no it doesn't :p

    • @tomasalvim1022
      @tomasalvim1022 7 ปีที่แล้ว +42

      No, it doesn't.

    • @DekuStickGamer
      @DekuStickGamer 7 ปีที่แล้ว +19

      oh....

    • @Kuolema1337
      @Kuolema1337 7 ปีที่แล้ว +51

      Hey Vsauce, Michael here.

    • @Liliou
      @Liliou 7 ปีที่แล้ว +18

      Haha! Savage James..

    • @MarkWaner
      @MarkWaner 7 ปีที่แล้ว +4

      So cold "no"

  • @Icenri
    @Icenri 7 ปีที่แล้ว +69

    I like so much how Dr. Grime makes any topic clear and understandable. We want more Grime!

  • @12tone
    @12tone 7 ปีที่แล้ว +257

    So, is there an explanation for why this seemingly unrelated geometry problem happens to share those properties with electrical circuits?

    • @frankenshizzle
      @frankenshizzle 6 ปีที่แล้ว +5

      ya

    • @RiccardoPazzi
      @RiccardoPazzi 6 ปีที่แล้ว +150

      I know this question is one year old but I wanted to answer anyway. The fact is that the sum of all the squares sides going top to bottom must be constant (equal to the bigger square side). It means that this quantity is the same even though it's split among different squares, this is the same kind of behavior you find in circuits but also many other physical objects, because ultimately it's about conservation of something and we know how much physics loves conservation :)

    • @davictor24
      @davictor24 5 ปีที่แล้ว +8

      @@RiccardoPazzi great answer!

    • @Ampheon181
      @Ampheon181 5 ปีที่แล้ว +3

      Because math is magical!

    • @trequor
      @trequor 3 ปีที่แล้ว +3

      Geo-metry. Geo is earth. Back when the subject was invented, the earth was the whole universe.

  • @superstarjonesbros
    @superstarjonesbros 7 ปีที่แล้ว +450

    I saw that Parker Square... senaky sneaky.

  • @stevenvanhulle7242
    @stevenvanhulle7242 7 ปีที่แล้ว +277

    00:40
    James: Why have they chosen this as the logo for their Society?
    Brady: 'Cause they're nerds.
    Answer like a boss!

    • @camilohiche4475
      @camilohiche4475 7 ปีที่แล้ว +9

      That should have been the end of the video right there.

    • @WontonTV
      @WontonTV 7 ปีที่แล้ว +2

      I'm Flat mic drop and walk out of the room

  • @minatogames3462
    @minatogames3462 7 ปีที่แล้ว +72

    "Cuz they are nerds!"
    Hahaha, this made my day

  • @millamulisha
    @millamulisha 7 ปีที่แล้ว +3

    "Or does it!?...", "No, it doesn't".
    Perfect encapsulation of a maths person's ability to squash enthusiasm. Haha...

  • @RallyRat
    @RallyRat 2 ปีที่แล้ว +2

    To really drive the electrical analogue home: If you imagine the rectangle ( 4:08 ) is built of a resistive material with the top and bottom edges connected to a battery with voltage equal to the height, then you are setting up a uniform unit electrical field with uniform current flowing across the whole area from top to bottom. Since there is no horizontal electric field, you can place wires along any horizontal and make any vertical cuts without affecting any current flows. Any square you cut out of the area will have the same resistance, no matter its size. With this in mind and without any change in electrical flow, a cut can be made at each vertical line, each horizontal line can have a wire with zero resistance laid over it, and each square can then be replaced with a unit resistor. Now you have exactly the same resistor network with the associated currents and voltages.

  • @jordantistetube
    @jordantistetube 7 ปีที่แล้ว +45

    I love that you can easily conceive certain objects in mathematics, like that 70x70 square, that are just forbidden to exist. "So disappointing that it doesn't exist!". If he was talking about a unicorn, it wouldn't have had the same meaning. A unicorn could potentially exist somewhere in the future. Saying "unicorns don't exist" is like saying that "t-rexes don't exist". They don't exist in our immediate reality. That 70x70 squared square is impossible now, in the future and past, everywhere and forever. Yet we're capable of discussing the properties and qualities of this fundamentally impossible object.

    • @bscutajar
      @bscutajar 6 ปีที่แล้ว +15

      jordantiste The fact that, unlike biology, chemistry or even physics, maths is always true whichever universe you live in is why people love maths.

  • @charonder
    @charonder 7 ปีที่แล้ว +57

    James Grime came to my school a few weeks ago and when I told him I was going to be doing maths and physics at uni he said he didn't really like physics, so it's funny to see him talking about electrical circuits here

  • @BMBOX94
    @BMBOX94 7 ปีที่แล้ว +6

    I love how passionate he gets and how happy it all makes him

  • @KasabianFan44
    @KasabianFan44 7 ปีที่แล้ว +224

    Are there any triangled triangles?

    • @ricarleite
      @ricarleite 7 ปีที่แล้ว +66

      Imperfect, yes. Triforce symbol.

    • @stevethecatcouch6532
      @stevethecatcouch6532 7 ปีที่แล้ว +38

      Yes. One example is a 15, 20, 25 right triangle made of a 12, 16, 20 right triangle and a 9, 12, 15 right triangle.

    • @aitor2623
      @aitor2623 7 ปีที่แล้ว +4

      ricarleite But those are equally sized triangles

    • @KasabianFan44
      @KasabianFan44 7 ปีที่แล้ว +12

      Steve's Mathy Stuff
      I mean equilateral triangles...

    • @aeriumsoft
      @aeriumsoft 7 ปีที่แล้ว +10

      don't think so, there would always be a gap
      (but if you're joking that's fine lol)

  • @furrane
    @furrane 7 ปีที่แล้ว +26

    9:42
    - "Or does it ?!"
    - "No it doesn't."
    Killed me there xD

  • @OwlRTA
    @OwlRTA 2 ปีที่แล้ว +5

    In the University of Waterloo, they named a side road "William Tutte Way" after Bill Tutte, and they even put the 33 by 32 squared rectangle on the sign, and mentioned the Squared Squares

  • @joshnoble07
    @joshnoble07 7 ปีที่แล้ว +4

    One of the most fascinating videos from the past little bit! I really enjoyed this.

  • @complexobjects
    @complexobjects 5 ปีที่แล้ว +2

    This problem is kindof similar to the 'ways to overlap circles' problem in another numberphile video. They place a certain criterion on what is an allowed form and try to find the different forms that exist. And, it's tricky to come up with a way a searching through the possibilities.

  • @martynasmalikenas1736
    @martynasmalikenas1736 7 ปีที่แล้ว +4

    Thanks for the upload, I really love videos with Dr. Grime!

  • @g0mikese
    @g0mikese 7 ปีที่แล้ว +7

    I really loved this one. I thought their solution methodology was really interesting with this problem.

  • @harrysvensson2610
    @harrysvensson2610 7 ปีที่แล้ว +121

    9:46 "or does it?"
    9:47 "no it doesn't ;("

    • @coosoorlog
      @coosoorlog 7 ปีที่แล้ว +12

      that one second era of hope

    • @Shit_I_Missed.
      @Shit_I_Missed. 7 ปีที่แล้ว +5

      Dr. Grimes set him up for that one, it was amazing. xD

    • @Lightning_Lance
      @Lightning_Lance 7 ปีที่แล้ว

      Sure it does, it's the Grime Square.

    • @pneumaniac14
      @pneumaniac14 5 ปีที่แล้ว

      thanks for the second time stamp I was struggling to find the part where he says that

  • @styleisaweapon
    @styleisaweapon 6 ปีที่แล้ว +9

    It would be nice to see an episode about other math societies "logos." Many of them should be interesting.

  • @ffggddss
    @ffggddss 7 ปีที่แล้ว +8

    This is largely a (really well done) synopsis of one of the early Mathematical Games columns by Martin Gardner, in Scientific American (from 1959?).
    The very first of those columns (actually, an article, which then led the magazine to give Mr. Gardner a monthly column), in the Dec. 1956 issue, was about hexaflexagons. Those were invented & investigated by another group of four students, one of whom was the very same Arthur Stone of the squared square story. The other 3 were Bryant Tuckerman, John Tukey, and Richard Feynman - yes, that's right - the famous, Nobel-laureate-to-be, physicist!

    • @DavidKlausa
      @DavidKlausa ปีที่แล้ว +1

      Martin Gardner deserves credit for at least half of all youtube videos involving math.

  • @drojf
    @drojf 7 ปีที่แล้ว +262

    finally I can use my electrical engineering degree for something even more useless than usual /s

    • @spur3
      @spur3 7 ปีที่แล้ว +3

      Heh, "techniquest".

    • @BertGrink
      @BertGrink 7 ปีที่แล้ว +3

      John Rogers I suppose that nowadays you'll just feed the numbers into a computer, right?

    • @notar2123
      @notar2123 7 ปีที่แล้ว +15

      Seriously? I thought electrical engineering was the most useful of all fields of engineering.

    • @whatisthis2809
      @whatisthis2809 4 ปีที่แล้ว +1

      "/s"
      Html broken?

    • @fortidogi8620
      @fortidogi8620 4 ปีที่แล้ว +1

      @@whatisthis2809 its a tone indicator. cuz its hard to tell sarcasm in text. so /sarcasm to be clear

  • @biaroca
    @biaroca 7 ปีที่แล้ว +87

    "Cause they're nerds?"

    • @mistertapman
      @mistertapman 4 ปีที่แล้ว

      My favorite part haha

    • @Arthur-qe8xc
      @Arthur-qe8xc 4 ปีที่แล้ว +1

      Well yeah, and that...

  • @bowlchamps37
    @bowlchamps37 2 ปีที่แล้ว +1

    1:44 I love how Wilkinson, the Senior Wrangler of 1939, is right in the middle of the 3 student´s triangle.

  • @ALZlper
    @ALZlper 7 ปีที่แล้ว +6

    If you use the same size twice it is called a squared parker square

  • @davidsweeney111
    @davidsweeney111 7 ปีที่แล้ว

    Of late I've been finding myself deleting emails from this channel because the stuff was way over my haed and not interesting, but I saw that it was this young man, so I watched, and boy was I rewarded, what a fantastic set of videos from this chap, he certainly knows how to hold attention and make a great video!

  • @BEP0
    @BEP0 7 ปีที่แล้ว +69

    Lol, the Parker square at 1:25!

  • @owenpeter3
    @owenpeter3 7 ปีที่แล้ว +2

    This was seen in Scientific American in Gardner's column in the 1950s. Using the technique he showed I designed a garden path several metres long and two metres wide all squares being different. Never got around to making it.

  • @mversantvoort
    @mversantvoort 7 ปีที่แล้ว +3

    This is genius, it's amazing how they linked a maths problem to electrical circuits.

  • @fsmoura
    @fsmoura 7 ปีที่แล้ว +1

    _"Or does it . . ."_
    _"No it doesn't."_
    Lol, he's been filming Numberphiles for years, and didn't catch on to the fact that when mathematicians open their mouths to utter the words "does not exist" it means it *really* does _not_ exist.

  • @josephhargrove4319
    @josephhargrove4319 7 ปีที่แล้ว +3

    Always remember: 10² + 11² + 12² = 13² + 14²

  • @phoenizboiisawesome
    @phoenizboiisawesome 3 ปีที่แล้ว +1

    That little Parker square flash got me

  • @andrewkovnat
    @andrewkovnat 7 ปีที่แล้ว +15

    How about a Squared Squared Square? Can you create a square out of these squares, without using more than one of the same square? You also can't have the squared squares being the same size as well.
    Well, I guess this would just be a bigger Squared square, then. :/

  • @esotericVideos
    @esotericVideos 7 ปีที่แล้ว +1

    1:24.2 They briefly flash a Parker Square as a joke.

  • @TheMiggy9
    @TheMiggy9 7 ปีที่แล้ว +48

    1:25 Parker square!

  • @Somebodyelse141
    @Somebodyelse141 5 ปีที่แล้ว +2

    "or does it"
    "No it doesn't" his sudden seriousness lol

  • @vojtechjanku2534
    @vojtechjanku2534 7 ปีที่แล้ว +4

    0:40 "Why have they picked this as their logo for their society?"
    "Cause they're nerds!"
    Oh, Brady :D

  • @freemanthompson706
    @freemanthompson706 7 หลายเดือนก่อน +1

    What about triangled triangles - using equalateral triangles (maybe similar triangles of any measure)?

  • @philmertens2673
    @philmertens2673 7 ปีที่แล้ว +30

    Does the fact that there are no cubed cubes relate to Fermat's Last Theorem somehow?

    • @CanadaJarod
      @CanadaJarod 7 ปีที่แล้ว +9

      Phil Mertens My initial response was "yes" based on the content of the video alone this seems almost implied. However I think the issue is to do with the rate of size increase for each successive cube making it much harder to fit them together geometrically. I'm doubtful that you could even build a rectangular prism out of cubes, though I'd like to be proven wrong on this since there's more to be learned from that

    • @frogkabobs
      @frogkabobs 7 ปีที่แล้ว +8

      I don't really think so. Here is the Wikipedia page explaining why there can be no cubed cube: en.wikipedia.org/wiki/Squaring_the_square#Cubing_the_cube. However, the proof does use infinite descent, which was the same method that was used to prove Fermat's Last Theorem for certain powers.

    • @UpstairsPancake
      @UpstairsPancake 7 ปีที่แล้ว +5

      Fermat's Last Theorem shows that there are no natural numbers x,y,z such that x^3 + y^3 = z^3 which does mean that you can't find two cubes whose volumes add together to give you the volume of a third cube, but that's all.

    • @chriswilson1853
      @chriswilson1853 7 ปีที่แล้ว

      I was about to ask that

    • @morpheus6749
      @morpheus6749 6 ปีที่แล้ว

      No.

  • @alansolomon113
    @alansolomon113 7 ปีที่แล้ว +1

    Bill Tutte went to Bletchley and it was him that broke Tunny.

    • @RobertMilesAI
      @RobertMilesAI 5 ปีที่แล้ว

      As documented in some great Computerphile videos

  • @joryjones6808
    @joryjones6808 6 ปีที่แล้ว +3

    So now we finally found a useful application of electric engineering that can be used to solve real world pure math problems.

  • @jlinkels
    @jlinkels 7 ปีที่แล้ว +1

    When the composited square is rotated 90 degrees it is possible to draw a different graph which also must comply to Kirchhoff's law. What is the relationship between the two graphs? I mean, if either one of those graphs complies to Kirchoff's law, will we have a squared square? Since the square still is the same, why are there two different graphs to describe the same square? Or is there something more behind?

  • @TheReacTT
    @TheReacTT 7 ปีที่แล้ว +5

    Matt Parker could definitely fit those squares together!

  • @phoenixking9319
    @phoenixking9319 4 ปีที่แล้ว +1

    1:25 the parker square remains

  • @Cloiss_
    @Cloiss_ 7 ปีที่แล้ว +3

    1:16 Sounds familiar...

  • @LanceThumping
    @LanceThumping 2 ปีที่แล้ว +2

    I wish this had more details on why we know there is only 1 smallest squared square and how we know it's the smallest.

  • @joshs.6426
    @joshs.6426 2 ปีที่แล้ว +3

    I will now go on my quest to find the circled circle, wish me luck!

  • @WombatSlug
    @WombatSlug 7 ปีที่แล้ว +1

    Interesting how Kirchoff's Law crops up in the most unique locations. It's one part that I've had the hardest time with when it comes to electrical theory.

  • @AlucardNoir
    @AlucardNoir 7 ปีที่แล้ว +47

    Imperfect squares? he surely meant Parker Squares.

    • @stevenvanhulle7242
      @stevenvanhulle7242 7 ปีที่แล้ว +2

      Squared squares (which are geometric constructions) are completely different from Parker squares (which are just matrices).
      A perfect squared square doesn't have duplicate subsquares, while imperfect squared squares do.

    • @AlucardNoir
      @AlucardNoir 7 ปีที่แล้ว +5

      That joke that when over your head didn't it?

    • @stevenvanhulle7242
      @stevenvanhulle7242 7 ปีที่แล้ว +3

      I see what you did there. But you must be joking if you call it a joke.

    • @whatisthis2809
      @whatisthis2809 4 ปีที่แล้ว +1

      @@stevenvanhulle7242 it's a joke whether you get it or not

    • @stevenvanhulle7242
      @stevenvanhulle7242 4 ปีที่แล้ว +1

      @@whatisthis2809 Don't worry, I got it alright. I just wondered if a joke is still funny if you heard it 200 000 times...

  • @rosiefay7283
    @rosiefay7283 5 ปีที่แล้ว

    7:24 To be fair, computers had been here for some years already. It was just that people were using them for seeking Mersenne primes, or ways to express numbers as the sum of three cubes...

  • @Deveron4
    @Deveron4 7 ปีที่แล้ว +38

    Aw, I was hoping for more Parker Squares... 😂😂😂

    • @kalebbruwer
      @kalebbruwer 7 ปีที่แล้ว +2

      Damodara Kovie 1:25

  • @EdithKFrost
    @EdithKFrost ปีที่แล้ว +2

    ‘Or does it?🤓🤓’
    ‘No it doesn’t’
    😶

  • @rpan9196
    @rpan9196 7 ปีที่แล้ว +14

    9:46 Vsauce?

  • @venkatbabu186
    @venkatbabu186 5 ปีที่แล้ว

    Sine sqared plus cosine squared equals one. So find angle permutations. Vectors distribution.

  • @BrokebackBob
    @BrokebackBob 7 ปีที่แล้ว +39

    Next useless problem: Make a square from circles.

  • @listenerofrealrap
    @listenerofrealrap 7 ปีที่แล้ว +2

    I saw that sum of squares from 1 all the way to 24 on a John Baez video about string theory. Funny seeing it here as well, and it's a real shame that the squares can't be arranged into a squared square (makes for a nice pyramid, though).

  • @kwak0
    @kwak0 6 ปีที่แล้ว +8

    Hey Vcause, Michal here

  • @DaltonHBrown
    @DaltonHBrown 2 ปีที่แล้ว +1

    Even though I'm not a mathematician, I'm still annoyed that cubed cubes and that 70^2 cube of all the smaller cubes are impossible.

  • @coosoorlog
    @coosoorlog 7 ปีที่แล้ว +4

    You can't make a cubed cube. Can you make a tesseracted tesseract?

    • @zhufa07
      @zhufa07 7 ปีที่แล้ว +6

      There cannot be a perfect cubed cube in dimension 3 or higher. We know
      that there is no perfect cubed cube. Suppose that there exist a perfect
      tesseracted tesseract, then each of its "sides", which are cubes, must
      also be perfectly cubed, which leads to a contradiction.

    • @coosoorlog
      @coosoorlog 7 ปีที่แล้ว

      yes of course. that makes perfect sense :)

  • @FrankHarwald
    @FrankHarwald 7 ปีที่แล้ว +1

    I've taken your idea of looking for perfect squared squares restricted to consecutive natural numbers & generalized it to also look for numbers with different step sizes(but still constant) apart, & here's what I've found:
    -for step size 14, summing 4 squares starting from 1 towards 43 yields area of 1296 = 54^2 = 1^2 + 15^2 + 29^2 + 43^2 & only candidate side length of 44= 1 + 43 = 15 + 29. However, this small problem size can be easily checked to have no solution as a perfect squared square either.
    -The next bigger perfect squared square candidate I found for constantly increasing natural numbers is for step size 8, summing 64 squares starting from 1 towards 505 which yields an area of 5494336 = 2344^2 = 1^2+ 9^2 + ... + 497^2 + 505^2.
    Now, can anyone confirm or disprove whether there is a perfect squared square of that area using those squares? & what would its side length be?

  • @vodkacannon
    @vodkacannon 7 ปีที่แล้ว +4

    This is like the most creative solution to a problem ever

  • @3mi3mi
    @3mi3mi 7 ปีที่แล้ว

    1:31 Was I the only one who recognized Arthur Stone's name from Vi Hart's video about hexaflexagons?

  • @TheRedKorsar
    @TheRedKorsar 7 ปีที่แล้ว +3

    Hello, Numberphile. Some day, i have a question. And i cant find it out. Rubiks Cube. It has many of possible combinations. Them all can be solved by 20, and less turns. But question is: Is there a combination, that can solve cube from any combination? I'm a programmer, an i have wrote a programm, that count iterations of algorithm to get to start position. And i have found Easy one. RFL'B only 4 turns, but it takes 1680 turns to get back.

    • @AdamSpanel
      @AdamSpanel 7 ปีที่แล้ว +2

      Yup, there is. It is called "Devil's algorithm" (analogy to the God's algorithm). There has been done some research on it, you can google it up. I don't think a specific algorithm has been found though (but I think it has been proven that such algorithm exists)

    • @TheRedKorsar
      @TheRedKorsar 7 ปีที่แล้ว +1

      Algorithm is really possible. You can solve each combination, and write all moves, it will be huge algorithm, but it exists. But what the smallest one?.. For now, i'm trying to get it on simple twisty puzzle. Just get 6 circles, place them in grid 3*2, and it give you simple puzzle. It has only 360 possible combinations (!6 / 2) and Devil's algorithm, i think has 6 moves... But it not tested. I didn't write test for all algs program. It is next step.

    • @ABaumstumpf
      @ABaumstumpf 7 ปีที่แล้ว

      You mean a sequence that when all steps are taken solves all startingpositions? Nope.
      But it is easy to make a sequence that, at one point or another, solves any starting position - but you would have to terminate it at the right step.

    • @TheRedKorsar
      @TheRedKorsar 7 ปีที่แล้ว

      It is real. And prove is simple. You have decent amount of combinations. 43*10^19, i guess. So you can solve each combination in about 10 moves(average) So Devil's algorithm will take 43*10^20 moves. One big algorithm, witch will go from one combination to another. And, because of it cycles all possible combinations, it will solve cube in 100% But length, of this algorithm is realy realy big :D

    • @AdamSpanel
      @AdamSpanel 7 ปีที่แล้ว +1

      From my understanding, devil's algorithm is the shortest sequence of moves which will get to all the combinations of the cube if repeated infinitely.

  • @joshyoung1440
    @joshyoung1440 2 ปีที่แล้ว +1

    James: what's the smallest squared square?
    Me, an intellectual: one

  • @stuartofblyth
    @stuartofblyth 7 ปีที่แล้ว +18

    Kirchhoff (4:14) is pronounced "Keer'-choff" with the ch as in loch and Bach. Just sayin'.

    • @azzteke
      @azzteke 7 ปีที่แล้ว +2

      No, wrong. "Keerch-hoff". There are two types of "ch", by the way.
      This ch is NOT the scotch one.

    • @stevenvanhulle7242
      @stevenvanhulle7242 7 ปีที่แล้ว +3

      Actually, the "i" in Kirchhoff has to be pronounced like the "i" in "bit".

  • @jroemling
    @jroemling 7 ปีที่แล้ว

    1:24, you are killing me! 😂😂😂
    Love Dr. Grime, more of him, please!

  • @datenegassie
    @datenegassie 7 ปีที่แล้ว +146

    EDIT: except for that one frame

  • @Nemilime
    @Nemilime 7 ปีที่แล้ว +2

    Very interesting video and James is great as usual.

  • @Jaynat_SF
    @Jaynat_SF 7 ปีที่แล้ว +81

    I mean, a 1x1 suqre is technically a square made of squares and it's smaller, right? I know this is the boring solution, but it's still a solution.

    • @ragnkja
      @ragnkja 7 ปีที่แล้ว +23

      Nave Tal Unity is considered too trivial for puzzles like these.

    • @Jaynat_SF
      @Jaynat_SF 7 ปีที่แล้ว +3

      I know, I know...

    • @gojoubabee
      @gojoubabee 7 ปีที่แล้ว +28

      Nave Tal Well, if you count a 1x1 square, then you could also count a 2x2 square, and a 3x3 square, etc. That's infinite squares, but all are trivial solutions.

    • @Shit_I_Missed.
      @Shit_I_Missed. 7 ปีที่แล้ว +11

      I'd say it's not a solution based on the language of the problem. one square is not a plurality

    • @prelude9954
      @prelude9954 7 ปีที่แล้ว +1

      they want integers squares

  • @usethefooorce
    @usethefooorce 5 ปีที่แล้ว +1

    I wonder if the 70x70 square works on a torus (a square that wraps in both axes)...

  • @Lightn0x
    @Lightn0x 7 ปีที่แล้ว +14

    James posting not one.. but TWO videos? Is this real life?

    • @bomberdan
      @bomberdan 7 ปีที่แล้ว +1

      Lightn0x Queen

  • @blaegme
    @blaegme 7 ปีที่แล้ว +1

    This kind of math could be quite useful in manufacturing. Such as cutting a single sheet of matterial into different sized squares without waitsing any. Even the imperfect ones if you want a ratio between the sizes.

  • @marcinukaszyk4698
    @marcinukaszyk4698 7 ปีที่แล้ว +21

    Or dose it?
    No it doesn't.
    I'm so disappointed :(

  • @sbukosky
    @sbukosky 5 ปีที่แล้ว

    It makes me imagine beings on another planet solving the same mathematics questions.

  • @wazul7676
    @wazul7676 7 ปีที่แล้ว +3

    Or does it? :)

  • @listofromantics
    @listofromantics 7 ปีที่แล้ว

    00:42 - "Because they're Nerds."
    Honestly, it was the first answer that popped into my mind as well.

  • @pauljk-123
    @pauljk-123 7 ปีที่แล้ว +5

    *Insert Parker square joke here*

  • @jbw416
    @jbw416 7 ปีที่แล้ว

    1:24 use "." and "," keys to go between frames.

  • @TSTypeR
    @TSTypeR 7 ปีที่แล้ว +18

    Or does it? 😏........

  • @yaseen157
    @yaseen157 7 ปีที่แล้ว

    I like the cheeky editing at 1:24

  • @bodenharris1484
    @bodenharris1484 6 ปีที่แล้ว +9

    Who’s here from vsause

  • @MostlyIC
    @MostlyIC 2 หลายเดือนก่อน +1

    I've been wanting to write such a computer program (because I'm a nerd !!!), but at the core you have to generate all possible graphs, and then the algorithm to weed out the ones that don't satisfy the Kirchoff requirements is the easy part, but it turns out algorithms to generate all possible graphs aren't so easy, so that project is on the shelf for now, unless someone can point me to such an algorithm ?

  • @sansamman4619
    @sansamman4619 7 ปีที่แล้ว +29

    OMG JAMES GRIME, the legend of Numberphile is back :D James is the best mathematician i think he is better than Euler in maths

    • @GodsOfMW2
      @GodsOfMW2 7 ปีที่แล้ว +29

      perhaps a little too much there

    • @Luisitococinero
      @Luisitococinero 7 ปีที่แล้ว +1

      He is better than Albert Einstein in maths.
      And Albert Einstein has been considered a genius.

  • @mac1991seth
    @mac1991seth 7 ปีที่แล้ว +1

    Imperfect square... where have I heard this before?

  • @Djorgal
    @Djorgal 7 ปีที่แล้ว +13

    There is none that uses fewer than 21 squares? Well yes there is, I can make a square made of only one square with none used twice.

    • @numberphile
      @numberphile  7 ปีที่แล้ว +32

      trivial

    • @Djorgal
      @Djorgal 7 ปีที่แล้ว +7

      Indeed. Trivial answers are the best ones!
      By the way, you said that there is no square made of the first 24 squares, but is there a sqare made of consecutive squares? Not necessarily starting from 1.

    • @Yerrik
      @Yerrik 7 ปีที่แล้ว

      Are there solutions that can be constructed out of rectangles, and still be solved with Kirchhoff's Law? Or is there something special about the squares (other than that they are nice, and possibly unique)? I could imagine applying this method to a bunch of problems that rely on graph theory, but this would have to be generalizable to rectangles.

  • @N0tasava7
    @N0tasava7 4 หลายเดือนก่อน +1

    The squares area is exactly 12,544

  • @diegomo1413
    @diegomo1413 3 ปีที่แล้ว +1

    When you and the lads get called squares so much, you decide to find a square made up of smaller squares, just like your group :’)

  • @umbragon2814
    @umbragon2814 6 ปีที่แล้ว

    You know someone is a math nerd when they vibrate in excitement over squares

  • @zarkzy1306
    @zarkzy1306 7 ปีที่แล้ว

    At first I was like "what's the big deal, it's easy to make a square out of squares", then two seconds later after thinking it over I was like "oh..."

  • @sehr.geheim
    @sehr.geheim 7 ปีที่แล้ว +2

    1:23 Parker Square

  • @nomekop777
    @nomekop777 7 ปีที่แล้ว

    This man has never worked a day in his life because he loves what he does so much

  • @pinoficara
    @pinoficara 5 ปีที่แล้ว +1

    I don't understand the thumbs down. This was great!