Weird But Fair Dice (plus the D120) - Numberphile

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  • čas přidán 10. 04. 2016
  • Featuring Henry Segerman. See more links about the dice in the full description below...
    More links & stuff in full description below ↓↓↓
    Extra footage at Numberphile2: • Weird Dice (extra foot...
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Komentáře • 1K

  • @cameodamaneo
    @cameodamaneo Před 8 lety +1413

    *rolls dice once*
    "Yeap. That looks fair to me. "

    • @omarkhan5223
      @omarkhan5223 Před 6 lety +15

      Well he had 2 that were the exact same shape but came up with different numbers. So yeah

    • @jordbored1502
      @jordbored1502 Před 5 lety +17

      says the guy who only ever rolls 1

    • @romainsavioz5466
      @romainsavioz5466 Před 2 lety

      🤦🏻‍♂️

    • @JonYodice
      @JonYodice Před 2 lety

      you calm it down. I can attest to the fairness of at least the d120s. I am the worlds foremost dice collector and I trust The Dice Lab wholeheartedly

    • @CatfoodChronicles6737
      @CatfoodChronicles6737 Před 6 měsíci

      @@JonYodiceI highly doubt that

  • @Johnyknowhow
    @Johnyknowhow Před 7 lety +927

    > Hammering a nail in a board
    "rolling 120 for success in hitting the nail"
    > Rolls 1
    "rolling 120 for crit"
    > Rolls 1
    "You attempt to hit the nail on the head but utilizing your otherworldly clumsiness, you critically fail and manage to let the grip of the hammer slip from your hand, at which point it just so happens to be traveling fast enough to smash open a notorious dictator's window and land on his missile launch button. You end up killing off an entire country, the death count totaling to 300 million."

    • @theindisposable5525
      @theindisposable5525 Před 7 lety +14

      Why is this not the top comment?

    • @racheline_nya
      @racheline_nya Před 5 lety +1

      yeah why is this not the top comment?

    • @sophiacristina
      @sophiacristina Před 5 lety +10

      If i was this guy, in fact i would be very impressive with how much luck i have to do so much rare unluckiness in just a single event. I think i'm an unlucky person, so i feel it precisely.

    • @hamiltoneuzarraga6546
      @hamiltoneuzarraga6546 Před 5 lety

      Trump kills us all

    • @FoxDren
      @FoxDren Před 4 lety +20

      So I got 300 million kills? That's a lot of XP

  • @iluvatar003
    @iluvatar003 Před 8 lety +2551

    Rolls a D120 twice and gets a 1 both times. Lmao... he's getting killed...

    • @JamesRevan
      @JamesRevan Před 8 lety +488

      +iluvatar003 Getting killed? Nope. Rolling a 1 on D120 twice would be like your DM would say "You tried to swing your sword in a dungeon underground, but your character jumps off of a building head first into concrete and gets stabbed 4 times on the way down.

    • @Ghi102
      @Ghi102 Před 8 lety +28

      +James Revan Unless you're playing Second Edition on an ability check!

    • @aenorist2431
      @aenorist2431 Před 8 lety +22

      +iluvatar003 Shadowrun, critical glich, he be ded.

    • @rancidmarshmallow4468
      @rancidmarshmallow4468 Před 8 lety +28

      +iluvatar003 In my group, the gm would just have your attack or whatever hit yourself, then your pants fall down.

    • @HiArashi13
      @HiArashi13 Před 8 lety +6

      +TheRancidMarshmallow it's all depends on a system. There's a fair number of those that favor smaller rolls (like GURPS as an example)... so... mb that was a crit hit?

  • @WhiteRAZOR
    @WhiteRAZOR Před 8 lety +637

    Presents this to the Sharks as a new invention; a "New Fair Dice".
    Keeps rolling 1's in front of the investors.

    • @adrianbornabasic7499
      @adrianbornabasic7499 Před 8 lety +7

      +White Razor Kevin: "But how can i make any money?"

    • @thesledgehammerblog
      @thesledgehammerblog Před 4 lety +4

      @@adrianbornabasic7499 get them to roll 7s?

    • @theonlymrcat638
      @theonlymrcat638 Před 4 lety +17

      Well, yes, the normal models are perfectly fair, this one just happens to have been cursed on the way out of the factory

    • @OrangeC7
      @OrangeC7 Před 4 lety +4

      @@theonlymrcat638 "I can show you with this other one"
      *rolls some more 1s*
      "..."

  • @Nukestarmaster
    @Nukestarmaster Před 8 lety +463

    I'm pretty sure your player character has been eaten by a Dragon by now.

    • @Geoffercake
      @Geoffercake Před 8 lety +15

      +Nukestarmaster not even that epic, probably just a goblin or something

    • @naskoBG26
      @naskoBG26 Před 8 lety +26

      +Geoffercake slipped on the way out of the boat and drowned in 3 centimeters of water right on the shore.

    • @Nukestarmaster
      @Nukestarmaster Před 8 lety +8

      Tripped and got a rock lodged in their windpipe

    • @wallonice
      @wallonice Před 5 lety +5

      Got killed by his own dice... twice

    • @PeterAuto1
      @PeterAuto1 Před 4 lety +2

      was killed by a squirrel or rat

  • @imveryangryitsnotbutter
    @imveryangryitsnotbutter Před 8 lety +269

    Rolling a 2 or 3 on a D60 is a critical fail.
    Rolling a 1 is an epic fail.

    • @TheRealVajhar
      @TheRealVajhar Před 8 lety +3

      +I'm Very Angry It's Not Butter (#WTFU) And here I am rolling 1 for critical success.

    • @imveryangryitsnotbutter
      @imveryangryitsnotbutter Před 7 lety +2

      +FuckYouGooglePlus Well aren't you a sassy little scamp.

    • @captainskylink5894
      @captainskylink5894 Před 7 lety +16

      3: Critical fail
      2: Epic fail
      1: Epicly Critical fail

    • @jayeisenhardt1337
      @jayeisenhardt1337 Před 7 lety

      Anything greater than 1 can still hit if ya got the skill but that damned 1 with my +360 no scope still fails. The list of doom is fun or funny when ya drop you weapon and it shatters like a grenade killing everyone but you in the party. Leaving you weaponless and easily captured for a life of slavery and torture. The remains of your allies, creature snacks. Family back home wondering why you don't write as the end of their world slow creeps upon them.

  • @CristiNeagu
    @CristiNeagu Před 8 lety +440

    Well... if you have a die that always comes up as 1... i guess it's fair. If everyone gets 1 all the time, it has to be fair.

    • @gavinwarner3480
      @gavinwarner3480 Před 8 lety +8

      I think their definition of "fair" is what is generally considered to be random, not necessarily everyone getting the same roll.

    • @mememagician97
      @mememagician97 Před 8 lety +58

      +Cristi Neagu Communism in a nutshell

    • @gralha_
      @gralha_ Před 8 lety +2

      +Gavin Warner Fair means equiprobable.

    • @DjRuccy
      @DjRuccy Před 8 lety

      +Sage Says

    • @nickburns5440
      @nickburns5440 Před 8 lety +3

      +Sage Says Bernie Sanders in a nutshell.

  • @otakuribo
    @otakuribo Před 8 lety +158

    Rolls 1 on d60.
    Rolls 1 on d120.
    ROLLS 1 AGAIN ON d120.
    The critical fail is so intense, it wraps around the entire multiverse and becomes an epic legendary win. You become an immortal agent of entropy and order; the world is your biscuit.

  • @EugeneKhutoryansky
    @EugeneKhutoryansky Před 8 lety +1294

    The dice may be fair, but life unfortunately is not.

    • @simoputtonen2799
      @simoputtonen2799 Před 8 lety +6

      +Physics Videos by Eugene Khutoryansky Deep stuff man.
      (Love your videos btw)

    • @Hecatonicosachoron
      @Hecatonicosachoron Před 8 lety +1

      +Physics Videos by Eugene Khutoryansky It is fair in a way. It is at least effectively U(1)×SU(2)×SU(3) fair.

    • @ChubbiestLamb6
      @ChubbiestLamb6 Před 8 lety

      +true reality
      Certainly, the laws of nature govern everyone indiscriminately. But that's not what anyone is refuting when they complain that "life isn't fair," so making that argument in response is kind of irrelevant. instead, I think people are generally getting at the problems I described in my initial comment, which is more of an indictment of our society than it is a misunderstanding of the laws of nature.

    • @ChubbiestLamb6
      @ChubbiestLamb6 Před 8 lety

      +KlaxonCow
      Thank you very much!
      I wouldn't necessarily disagree with your characterization of reality as "solid lines through 4D spacetime," but I don't think we can call fairness "illusory" just yet. Without the ability to perfectly predict where these solid lines will end up in the future, we can't exhaustively say that they will never end up in a configuration that might be described as "fair."
      Honestly, if nothing else, the eventual heat death of the universe will remove any possibility of unfairness, so boom! de facto fairness! at least there's that to look forward to.

    • @hakkbak
      @hakkbak Před 8 lety

      I just checked out this guy's physics videos, they are amazing :D

  • @SamSpain
    @SamSpain Před 8 lety +125

    A crit fail on a d60 is a curse for life on all future D&D characters

  • @lampsonwheelstr
    @lampsonwheelstr Před 7 lety +267

    Trys to explain why these are fair, only shows footage of them rolling 1's.
    good job.

    • @OrangeC7
      @OrangeC7 Před 4 lety +5

      I think this might be best described by the term "successful fail"

    • @YellowToad
      @YellowToad Před 4 lety

      1

  • @mazingdaddid
    @mazingdaddid Před 8 lety +250

    "Is there a bigger a bigger die?"
    "yes! a D120."
    *gets biggest die around. rolls fail twice*
    "oh.... ummmmmmmmmmmm...."

    • @Vickymonswer346
      @Vickymonswer346 Před 8 lety +5

      I don't think these dies are as fair as you think they are...

    • @Anaklusmos42
      @Anaklusmos42 Před 7 lety +10

      as long as all the faces are the same, and are all arranged in the same way, those dies are fair... i think so, atleast. maybe there was a balance problem in the die itself ?

    • @hamiltoneuzarraga6546
      @hamiltoneuzarraga6546 Před 5 lety

      Still triangles though.

    • @thehiddenninja3428
      @thehiddenninja3428 Před 4 lety +6

      @@Anaklusmos42 If there were unbalanced enough to make it roll a 1 twice on purpose
      It would be unbalanced enough for it to be noticable while it's rolling

    • @Anaklusmos42
      @Anaklusmos42 Před 4 lety

      @@thehiddenninja3428 yeah true. I'm not an expert with weighted dice, but I would believe you're right

  • @horrido666
    @horrido666 Před 8 lety +177

    These dice are designed to cause arguments. Used exclusively if your opponent is better at the game than you.

    • @HaniiPuppy
      @HaniiPuppy Před 8 lety +11

      +Dan S Or for games, especially roll-playing games, where a larger number of sides may be required. (Because rolling multiple dice and adding them up actually results in a bell curve of results, and rolling a separate die for, say, multiples within the largest possible number, may add unneeded complication)

    • @slowfreq
      @slowfreq Před 8 lety +14

      +HaniiPuppy "roll-playing"

    • @HaniiPuppy
      @HaniiPuppy Před 8 lety +9

      slowfreq Hah xd Seems like an appropriate typo.

    • @horrido666
      @horrido666 Před 8 lety +5

      +HaniiPuppy Oh, I get that. Been playing wargames and TRPGs for over 40 years. Old school way is to use two ten sided, and discard any results higher than the desired range. So if you need random 64, roll two ten sided until a result 64 or less is obtained.
      Also should add that if the rules are designed around a bell curve (from multiple dice), you NEED the bell curve.

    • @horrido666
      @horrido666 Před 8 lety

      +HaniiPuppy Agreed. As you probably know, usually the simplest solutions are the best. Less conceptualizing, and more gaming.

  • @cocoxcocoa
    @cocoxcocoa Před 8 lety +1192

    This guy must have the worst luck in D&D

    • @HolyDemonRune
      @HolyDemonRune Před 8 lety +4

      +spaceLem It depends on what you're checking.
      Attributes (Strength, Intelligence, etc) are checked under your score.
      Thaco, a 1 is a critical miss.

    • @Jacob-Day
      @Jacob-Day Před 8 lety +41

      +Canadian Bacon You attempt to cut the orc in half with your axe, and only succeed in making yourself cry. The orc takes pity on you and lets you have another go.

    • @0vesty
      @0vesty Před 8 lety +6

      +Canadian Bacon He rolled the ones out of the system, so they don't show up when it matters in D&D :)

    • @JynxSp0ck
      @JynxSp0ck Před 8 lety +5

      +0vesty My hobby is casually making the gambler's fallacy and seeing if anyone catches me out.

    • @henryseg
      @henryseg Před 8 lety +3

      +Canadian Bacon Shadowrun only uses d6s, and apparently my luck with them is better.

  • @ionlymadethistoleavecoment1723

    Critical fail with a d60 is actually really impressive

    • @kenkojuko
      @kenkojuko Před 8 lety +15

      +Ionlymadethistoleavecoments So is a 27 on a d60.

    • @genejas
      @genejas Před 8 lety

      +Kenkojuko MC What.

    • @kenkojuko
      @kenkojuko Před 8 lety +7

      aeneas6899 .Poteeto Potato The chances of getting any single number on a d60 are the same.

    • @genejas
      @genejas Před 8 lety +1

      Kenkojuko MC i dont even know what critical fail stands for. Is it d&d related?

    • @ionlymadethistoleavecoment1723
      @ionlymadethistoleavecoment1723 Před 8 lety +2

      +Kenkojuko MC yeah but getting a crit fail is still so unlucky.

  • @enhydralutra
    @enhydralutra Před 8 lety +198

    This guy needs to put some skill points into luck, immediately.

    • @pws3rd170
      @pws3rd170 Před 4 lety +10

      Well it would appear you must roll for these aditional skillpoints..... which would appear to be an issue

  • @MindYourDecisions
    @MindYourDecisions Před 8 lety +145

    I would love to see these interesting dice used more in math classrooms, would make for some fun experiments.

  • @TheDrexxus
    @TheDrexxus Před 7 lety +39

    Fun Fact: He became a numberphile after he determined that his very short lived D&D career wasn't going to pan out.

  • @MrAzkhare
    @MrAzkhare Před 8 lety +63

    rolling a one in a D120? my dice aren't getting anywhere near this guy.

    • @scouttyra
      @scouttyra Před 4 lety +1

      Must be touched by Wil Wheaton.

  • @MrVeps1
    @MrVeps1 Před 6 lety +7

    "I want to cast a spell!"
    "Which spell... Oh! It's you... never mind then, your character catches fire!"

  • @Treblaine
    @Treblaine Před 8 lety +57

    "Okay, roll the die and get anything but a 1"

  • @theColJessep
    @theColJessep Před 7 lety +103

    Must be hilarious to play D&D with you... xD

    • @steller7515
      @steller7515 Před 6 lety

      With a D6?

    • @robertwyatt3912
      @robertwyatt3912 Před 6 lety +8

      He rolls a 1 on a 120 sided dice and the dungeon master dies in real life they just explode into fire or something.

  • @InsaneWisePeoples
    @InsaneWisePeoples Před 8 lety +199

    natural 1s on a d20 is a fail, d60 critical fail, d120 everyone in your party dies in a fiery explosion.

  • @makiss29
    @makiss29 Před 8 lety +182

    They see me rollin...

    • @tehjamerz
      @tehjamerz Před 8 lety +50

      Crit failin'...

    • @agentdelta569
      @agentdelta569 Před 8 lety +8

      +tehjamez trying to catch me hittin dirty

    • @Th3BlackLotus
      @Th3BlackLotus Před 8 lety +10

      +lian armstrong or, Trying to catch me throwin' twenty.

    • @5sallaround
      @5sallaround Před 6 lety

      Makis Metaxas they hating

    • @Magicuser975
      @Magicuser975 Před 4 lety +1

      No control in their dice as they be rollin dirty.

  • @TakeWalker
    @TakeWalker Před 8 lety +56

    Okay, so don't let this guy make saving throws. :B

    • @captainskylink5894
      @captainskylink5894 Před 7 lety

      Wait, you're falling off a cliff?! Don't worry, I'll save you!
      You must now roll to save them.
      ...

  • @MrLinguist88
    @MrLinguist88 Před 8 lety +91

    Critical 1 on a d60, wow, sir, you should go and play lottery, right now! :D

    • @TanmayNandanikar
      @TanmayNandanikar Před 8 lety +4

      +MrSerrrg88 he'll just lose the most amount of money you can possibly lose

    • @MrLinguist88
      @MrLinguist88 Před 8 lety +3

      Tanmay Nandanikar I would say, in mathematics, there is no such thing as critically "unlucky", even in your "unluck" you are critically lucky :)

    • @TanmayNandanikar
      @TanmayNandanikar Před 8 lety

      +MrSerrrg88 Yeah
      he did have a very low probability of getting those ones but I was implying that getting a one is generally considered unlucky and although maths does not have a concept of 'luck', in this analogy he will be 'unlucky'

    • @TanmayNandanikar
      @TanmayNandanikar Před 8 lety

      That just makes your analogy ambiguous though, doesn't it?
      Also, I did say generally..
      But whatever
      who cares..

    • @MrLinguist88
      @MrLinguist88 Před 8 lety

      Tanmay Nandanikar either way it was funny to watch :)

  • @Sylocat
    @Sylocat Před 8 lety +349

    Okay, those last two 1s had to be scripted, but was the first one, on the d60, planned as well?

    • @numberphile
      @numberphile  Před 8 lety +305

      +Rabbit Cube not rigged. Henry's first two rolls of the prototype for me were 1s.... he later sent me some non-1s to show the D120 wasn't faulty and one of them was included at the very end of this video.

    • @ishwar8119
      @ishwar8119 Před 8 lety +126

      +Numberphile 2 1's ... trhats 1 in 14,400 probability (about 0.007 %)

    • @subh1
      @subh1 Před 8 lety +17

      +Numberphile You can make the die fair as much as you want. But if the rolling is not fair, it's all the same.

    • @WaffleAbuser
      @WaffleAbuser Před 8 lety +7

      +Stritt Faiter Alfa Plusse
      It got 1 two times. That doesn't mean it always gets 1.

    • @Anonymous_Man
      @Anonymous_Man Před 8 lety +119

      +Rabbit Cube It's not scripted he's simply channeling his inner pen and paper rpg player. No point in playing if you don't slip on a wet cobble stone and ram your own sword through your abdomen at the first roll, am I right?

  • @Hppyhppy2
    @Hppyhppy2 Před 8 lety +9

    i actually feel as if the oddly shaped d-6 is more fair because it's harder to do a controlled shot with them

  • @TVFILMBUFF
    @TVFILMBUFF Před 8 lety +10

    2 things that the world didn't know they needed. 120 sided "fair" dice and another channel to subscribe to from Brady.

  • @robin888official
    @robin888official Před 8 lety +37

    3:40: Thought for a second there was infinity on that die. :-D

    • @TheTheads0
      @TheTheads0 Před 8 lety

      +Robin Koch the infinity sided die?

    • @robin888official
      @robin888official Před 8 lety +16

      +anion cation AKA "Spehre™".
      Wouldn't recommend it, though.
      Rolls forever. Hard to read.

    • @mikedowns7650
      @mikedowns7650 Před 8 lety +5

      +Robin Koch but that crit damage lol

  • @rdizzy1
    @rdizzy1 Před 8 lety +81

    You could just label all of the dimples on golf ball and have like a 300-500 sided die.

    • @oscarsmith-jones4108
      @oscarsmith-jones4108 Před 8 lety +3

      u could but you wouldn't know what number you rolled.

    • @michaelbauers8800
      @michaelbauers8800 Před 8 lety +13

      Why, he said they were labeled. But you might need a vision aid to see them

    • @Foxpawed
      @Foxpawed Před 8 lety +1

      Yes but how would you be able to tell which one is pointed up?

    • @lobsterbark
      @lobsterbark Před 8 lety +9

      I bet you could make like a box thing that you would but on top of the golf ball that has a window on the exact middle, and wherever the window was is the side it landed on.

    • @World_Theory
      @World_Theory Před 8 lety +3

      Yeah, you could use microdots, like the espionage tool. And that box idea that the person above suggested.

  • @AlanKey86
    @AlanKey86 Před 8 lety +7

    Brady, remember all those happy hours you spent trying to roll a Yahtzee with D6s?
    ...
    D120 Yahtzee. It's what the subscribers want man.

    • @numberphile
      @numberphile  Před 8 lety +5

      +AlanKey86 Maybe I'll commission you to do it for me, Alan? Teachers have lots of holidays right?

  • @ThisNameIsBanned
    @ThisNameIsBanned Před 8 lety +3

    A cool form of dice is one that has a water bubble inside, so it "points" out the top, makes it way easier to identify what you roll on the huge dices.
    Also nice, a dice with more dice in it, so you can roll multiple dice with just 1 throw of a big dice (and allways keep them together).

    • @circadianizzy
      @circadianizzy Před 2 lety

      I literally have three dice-within-dice. A d10-within-d10, a d12-within-d12 and a d20-within-d20. They don't roll very well due to the inner dice bouncing around causing weight-based screwery but they're still cool.

  • @tijmenvanderree487
    @tijmenvanderree487 Před 8 lety +31

    D6 - _Reroll Your Destiny._

    • @Schindlabua
      @Schindlabua Před 8 lety +2

      +antenn0 **rerolls into soy milk**

  • @ampjam
    @ampjam Před 7 lety +54

    GUYS, GUYS! I've found a 1-sided die!
    I'll call it...
    a sphere!

    • @jollyspyder5005
      @jollyspyder5005 Před 7 lety +15

      That's a ∞ sided die

    • @kyzer422
      @kyzer422 Před 7 lety +9

      +Jolly Spyder Careful rolling that, Probilator might get you.
      What, you don't watch Gravity Falls? Sorry.

    • @braydenvods
      @braydenvods Před 7 lety +15

      A sphere has infinite sides.

    • @Felixr2
      @Felixr2 Před 7 lety +4

      Infinite sides, but finite surface area (unless we're using the Banach-Tarski Paradox) and zero edges.

    • @quinn7894
      @quinn7894 Před 4 lety +1

      Monohedron!

  • @theendofit
    @theendofit Před 8 lety +93

    did you actuly roll the dies like 500 times just to get those 3 1's? or was that actully random luck?
    i ask becuse statisticaly ods of getting those 3 1's is about 1.15 in 1,000,000

    • @JLSoftware
      @JLSoftware Před 8 lety

      +theendofit Yes Brady, answer please!

    • @numberphile
      @numberphile  Před 8 lety +88

      +theendofit it was not planned - just how the video unfolded.

    • @huckthatdish
      @huckthatdish Před 8 lety +14

      i imagine the prototype d120 isn't machined perfectly and is biased. the more sides the more precise the thing needs to be manufactured. Any flaws will be more easily magnified.

    • @Felixr2
      @Felixr2 Před 7 lety +16

      Actually it's exactly 1 in 864000. That shouldn't be too hard to work out.

    • @theendofit
      @theendofit Před 7 lety +6

      Imagine Twenty One Pilots! Against the Disco you relise that I said 1.15 right? further I said about . so my numer is correct.my number is only .0000000074 less then yours. in probability you try to simplify things and so by rounding .0000001574 as .00000015 to make it easier to read and understand that works. in truth I should have said 1.16 to make it slightly more acurret but I was doing it in my head at the time and must have been off by .000000003.

  • @martinshoosterman
    @martinshoosterman Před 8 lety +44

    I think it would be interesting to see a 6 sided dice made in a what such that rolling it by itself is completely unfair, and it would seem totally useless, untill you realise that rolling 2 of them makes it completely fair. So when you have 2 of them, each number from 2 to 12 has an equal chance.

    • @RiggOmar
      @RiggOmar Před 8 lety +5

      Unfortunately that's impossible (for 2,3,4,5,6,7,8,9,10,11,12) to have the same probability. There are 11 possible outcomes here, but with 2 dice, you have 6*6=36 combinations.
      11 doesn't divide nicely into 36, so it can't work.

    • @martinshoosterman
      @martinshoosterman Před 8 lety

      awesomepancakes381 simple, if you get a 2, its a 50 percent chance of being a 2, and a 50 percent chance of being a 1. now there are 12 outcomes. getting snake eyes simply needs to have twice the odds of every other outcome.

    • @RiggOmar
      @RiggOmar Před 8 lety

      +martinshoosterman How would you go about implementing a 50% chance of 1 and 50% chance of 2? If you are rolling the same die twice, (or two identical dice), you still need an external device to determine the last 50/50, which breaks the rule of the equal chance being solely from the design of the die.

    • @martinshoosterman
      @martinshoosterman Před 8 lety

      awesomepancakes381 Thats simple, use orientation. If the die are both facing the same way, then its a 1, if they are facing opposite direction, then its a 2.

    • @Creep4Play
      @Creep4Play Před 8 lety +3

      +awesomepancakes381 It's not impossible, since the 36 combinations aren't neccessarily equally distributed.

  • @antiHUMANDesigns
    @antiHUMANDesigns Před 8 lety +9

    One solution to the alternate version of the D60 would be to make it transparent and have the numbers on the inside, if you get what I mean. Then you can see the number on the face that the die is resting on.

    • @CraftyF0X
      @CraftyF0X Před 8 lety +2

      +antiHUMANDesigns Neat idea but, you'd still have to see through two numbers and the edge (with all the reflections and refractions going on) to see the number.

    • @antiHUMANDesigns
      @antiHUMANDesigns Před 8 lety

      CraftyF0X Yeah, I wonder if it'd work out well or not, in practice. Refractions can likely be avoided by using the right material, and perhaps reflections could also be dealt with.
      And perhaps there is a way to make text only visible clearly from one side.

    • @brokenwave6125
      @brokenwave6125 Před 6 lety +1

      Or just roll in on a glass table with a camera underneath. I mean...we all have cameras in our pockets anyways. So all you need is a glass/clear table.

  • @safrprojects
    @safrprojects Před 8 lety +1

    The dents on balanced dice are taken out at different depths, also the paint they put in the holes help rebalance each side.

  • @markfinnicum3313
    @markfinnicum3313 Před 8 lety +2

    The 60 sided skew die DOES work. What you have to do is roll it on a glass table and look at the die from below the table. Whatever number is flat on the table is the number you rolled

  • @mikefutcher
    @mikefutcher Před 8 lety +5

    All we need now is a dr seuss board game to go with them.

  • @12Rman21
    @12Rman21 Před 8 lety +14

    bless you for calling it a d6. And if I recall correctly one guy in our D&D group had a 1 die D100, was a ball with a weight in the middle that would rest of center. not sure if it was a d100 but pretty sure
    "critical fail" aren't we a happy group of nerds together.

    • @bf1tz
      @bf1tz Před 8 lety +1

      +12Rman21 I still have one as well. Yeah, there is another ball inside as a weight to help it settle rather than roll forever; mine rattled as it rolled.

    • @bf1tz
      @bf1tz Před 8 lety

      Faladrin the inside ball helps settle it and keep it from rolling forever. The die is rolled as in dropped/tossed like other die. These things are notorious for rolling off tables across rooms bouncing off things because of how light and how small the die surfaces are--the smoother the surface is the easier it rolls. That is why there is a weight inside, Of course if you literally roll it, which isn't what you are trying to do (this is not bowling), yeah the momentum of the inner ball would assist in keeping it rolling. I'm not even sure it is a ball inside. Could be some other shape, i've never broken one open, they aren't that cheap. But yeah, they are usually light plastic with a bearing or something inside, sometimes just more plastic that is more dense. it isn't a huge weight.
      Yes, we also do not know what the surface texture is inside the die either. might have honeycomb or nodules anything like that.

    • @bf1tz
      @bf1tz Před 8 lety

      Faladrin when you toss a die it isn't rolling smooth, the inside ball would be bouncing around inside the die slowing down it's rolling motion. The weight is only added to the die's momentum if the die and inside ball are moving at the same velocity in the same direction. The inner weight and die are not the same weight or density. You can roll them yes, and they will roll, not as well as without the loose weight inside. They are meant to be tossed/dropped. That is how physics supposed to work. You would be correct if the weights weren't loose and moving independently from the die.

    • @Faladrin
      @Faladrin Před 8 lety

      I play DnD and am quite familiar with how dice roll. Your description seems to not completely answer the problem though.
      You pick up a die and toss it down. The inner die will be moving with the outer die (the object as a whole was tossed together). They might not be moving precisely in sync and it may be that some of the momentum of the inner die would negate some of the momentum of the outer die. I doubt however that somehow you would ever toss it so that they cancelled out resulting in a die that hits the table and literally just lands there without any further rolling (and of course your not saying that). So that partially answer the question, and maybe that bit if different in their initial trajectories is all there is the answer. What happens as the inner die bounces around though doesn't seem to matter. It will strike the inner wall of the outer dice and when it does it will rebound in a new direction, but no energy is lost doing this (beyond heat generated from the impact and friction or converted to sound). Any change in direction of the inner die will have an equal and opposite affect on the outer die.

    • @bf1tz
      @bf1tz Před 8 lety

      Faladrin They would be acting upon one another and friction from rotational differences (speed/direction). The inner object is skidding around if rotating with the die at all. I figure that is where most of the drag is, the other being the drag created from surface the die is contacting on the outside. But we aren't sure of the surface area inside the die either. Or the surface area of the weight for that matter. Friction/drag is the only thing slowing down die rolls anyways. Any difference in the surfaces that contact one another creates that drag, as with air. I don't think air resistance plays much part in drag on a rolling die though. I am assuming negligible unless there is wind. Air pressure would account for more of the drag than air resistance i'd think.
      I mean at this point we are speculating completely how the weight and the die are interacting with one another... hypothesizing... spose we could just look, because you know someone else has had to of torn one apart lol.

  • @AlexisTwoLastNames
    @AlexisTwoLastNames Před 4 lety

    i seriously love this channel.

  • @EdwardHowton
    @EdwardHowton Před 7 lety +2

    Interesting, especially for a DM! I got a set of, as they were called, "High Precision dice" back in the day and they serve me well so long as I use my dice tower, but they came with a few extras beyond the usual 4/6/8/10/12/20: a d3, a d5, a d14, and a d24. I was shocked at the d5 especially; it's a triangular prism (oh please memory of high school don't fail me now) . 1 and 5 on the top/bottom triangles, 2/3/4 on the rectangular sides. I couldn't believe it was fair until I started rolling it.
    Now I feel like getting some novelty dice like these... provided the usual D&D set are all accounted for.

  • @R9000
    @R9000 Před 8 lety +6

    I guess looking at this from a systems engineering point of view, you'd say that each of the six steady states of the die are equally stable.

  • @georgem8795
    @georgem8795 Před 8 lety +20

    Why isn't numberphile 2's icon tau?

  • @muteto2686
    @muteto2686 Před 5 lety +1

    Yes! You finally acknowledged the beauty of the deltoidal hexecontahedron. Thank you for that.

  • @9adam4
    @9adam4 Před 8 lety

    Henry's on Numberphile! So awesome!

  • @ritchards
    @ritchards Před 8 lety +6

    So, where's the Kickstarter where I can get these dice?

    • @numberphile
      @numberphile  Před 8 lety +7

      +Jamas Enright links to get these dice are in the description

  • @noodlesthe1st
    @noodlesthe1st Před 8 lety +11

    For anyone outside the US the dice are not cheap. I might have to find extra investors for my giant game of snakes and ladders involving 2 d120s.

    • @Rippertear
      @Rippertear Před 8 lety +9

      +noodles6669 how high are you?

    • @noodlesthe1st
      @noodlesthe1st Před 8 lety +2

      Rippertear AKA SDL Benjii TGPASOTSISAPROA(THR)STTLOYTYVMDFTBYTBCTSAASPIYH Let me see. Hmm seems I rolled a 420. Oh never mind that was a joint not a d120.

  • @BIGWUNuvDbunch
    @BIGWUNuvDbunch Před 8 lety

    HENRYYYYY! I've been following you for yearssss!

  • @BasKeurprins
    @BasKeurprins Před 8 lety

    I've ordered some of these skewed dice - this is awesome! For other Europeans ordering these - the Dice Lab site does offer to send it to Europe even though it's not in the drop down. And only if you order a single die Maths Gear is the cheaper option, otherwise ordering from Dice Lab is cheaper. (£6.5*D+£3)*1.248=($3*D+$13.95)*0.8764, so D = 1.5.

  • @blockmath_2048
    @blockmath_2048 Před 2 lety +3

    Those skew dice look like they're from Superliminal.

  • @niteexplorer9934
    @niteexplorer9934 Před 8 lety +3

    i have no idea what this was about, but they should use their skills to find a way to beat the house at craps

  • @BaconHer0
    @BaconHer0 Před 6 lety +1

    Congratulations on killing the Ancient Red Dragon, please roll 2d120 for treasure.
    *Rolls double 1s*
    Great, you've found 5000 copper pieces!

  • @mastermike890
    @mastermike890 Před 8 lety

    awesome! Love oddities like this! :)

  • @crotchman
    @crotchman Před 8 lety +6

    *sees D&D talk in the comments*
    MY PEOPLE!

  • @anoriolkoyt
    @anoriolkoyt Před 8 lety +3

    I imagine a cubed dice is not perfectly fair because the center of gravity is not the center of the cube. Since the 6-side face has 6 holes in it, it has more mass removed compared to the 1-side face. So the center of gravity is shifted very slightly towards the lower number sides. When it hits the table, this slight difference causes the dice to prefer bouncing towards the heavier sides (the lower numbers). Of course, the bias is probably less than, say, the levelness of the table. I wonder if anyone actually has ever done the calculation to determine this ...

    • @fabby2998
      @fabby2998 Před 8 lety +2

      Some D6 have the dots "painted" on them, so the mass difference is even smaller, to the point where it's negligible, making these dice *almost* perfectly fair

    • @Alaeriia
      @Alaeriia Před 8 lety +6

      Casino dice have the pips filled in with opaque resin with the same weight as the resin taken out.

  • @BenisBoy14
    @BenisBoy14 Před 8 lety +1

    rolls 1 on a d60
    -> your character tries to push open a door but it is a pull door
    -> you don't notice it so you push and push until your arms break
    -> from the shock you stumble backwards and fall down the staircase
    -> your character breaks his neck
    roll a d20 to see weather you are still alive or are just paralized from the neck down.

  • @King_Nipper
    @King_Nipper Před 8 lety +1

    That D120 rolled double 1's in a row. That dice would be the ultimate Dungeons and Dragons dice since you rolled off the 1's so quickly.

  • @RadioFreeHammerhal
    @RadioFreeHammerhal Před 8 lety +31

    So where can I buy these?

    • @numberphile
      @numberphile  Před 8 lety +23

      +Paul Conti links in full description

    • @bitzlibutzli1004
      @bitzlibutzli1004 Před 8 lety +3

      +Numberphile They're sold out!! D:

    • @Koltronn
      @Koltronn Před 8 lety +1

      +Numberphile What about those numberphile dice exhibited at the end? I loved the handwritten design

    • @thecouldntcareless
      @thecouldntcareless Před 6 lety

      Hang on, are these £7 EACH???

  • @midlevelgamer
    @midlevelgamer Před 8 lety +3

    is there somewhere I could buy any of these squished looking dice?

  • @bunnybro5977
    @bunnybro5977 Před 4 lety

    Numberphile is like a collection of videos put together when all your friends hang out for a bunch of drinks and some smokes and there's that one friemd who's always recording,but in this case it's mathematicians and physicists

  • @Midaspl
    @Midaspl Před 4 lety +2

    This got me thinking... What about actually unfair dice? Like dice where the chance of rolling higher numbers is proportionally lower (still somehow fair)? For example 1-23%, 2-20.5%, 3-18%, 4-15.5%, 5-13%, 6-10%.

  • @coopergates9680
    @coopergates9680 Před 8 lety +3

    4:43 Read off whichever face has a "point" that doesn't meet with the points of the other two faces.

    • @recklessroges
      @recklessroges Před 8 lety

      +Cooper Gates I was thinking that with so many faces, (and this being numberphile) that he could design a die where you add all of the numbers that meet at the apex.

    • @coopergates9680
      @coopergates9680 Před 8 lety +1

      +Reckless Roges To make that yield the numbers from 1 to 61, you might need 0,0,1 and 0,1,1 or 0,0,2 to end up with 1 or 2, could be tricky.

  • @Arquinsiel
    @Arquinsiel Před 8 lety +3

    I totally want those squished D6. Where did they come from?
    Herp, description. Nevermind.

  • @sambillups8691
    @sambillups8691 Před 6 lety

    This is my Calc 2 teacher this year in college! Great guy!

  • @tashkiira7838
    @tashkiira7838 Před 7 lety +1

    Fair d100s exist as well. I owned one before I fell on it (a lot of practical d-bignumber dice have small pellets inside to slow down the roll faster) and cracked it in half.

  • @hartree.y
    @hartree.y Před 8 lety +5

    *rolls once* "So yeah, that looks fair to me."
    That's.. not how it works.

    • @OskarElek
      @OskarElek Před 8 lety +4

      +Kotsar Yuriy You're obviously new here. Please allow me to introduce you to... sarcasm.

    • @IcIcyEyes
      @IcIcyEyes Před 8 lety +1

      +Oskar Elek You're obviously sarcastic here. Please allow me to introduce you too...

    • @OskarElek
      @OskarElek Před 8 lety

      IcIcyEyes ;)

  • @ApplicationBot
    @ApplicationBot Před 8 lety +12

    Video came out 7min ago but I'm already at 7:01

  • @geurgeury
    @geurgeury Před 8 lety

    More from Henry please!

  • @invaliddisplayname
    @invaliddisplayname Před 8 lety +1

    you can make the skewed d60 have a clear top by, pun-ily enough, having a transparent acrylic outside layer with the results in colored acrylic in the inside layer below. if each material is the same density, it will be fair.

  • @MilanTheAngel
    @MilanTheAngel Před 7 lety +5

    You should sell these, I'd buy 10 of each!

  • @samwallaceart288
    @samwallaceart288 Před 7 lety +5

    I'm afraid I don't understand what the actual problem is that their trying to fix; they didn't actually explain the issue with it being too even.

  • @B3nnub1rd
    @B3nnub1rd Před 8 lety

    So awesome to have Henry Segerman on this channel.

  • @NWRIBronco6
    @NWRIBronco6 Před 8 lety +1

    At around 4:50 when he described the 'less symmetrical' d60 with non-parallel faces did anybody else think of a d4? Because he totally could have just done what you do with a d4...
    (For those who don't know what a d4 is or how they are used - it's a tetrahedron and you just use the face that landed down or, if you will, the point that landed up).

  • @Rukalin
    @Rukalin Před 8 lety +7

    So many critical fails... Almost as bad as when I roll dice. I bet if I rolled the d120 ten times, I'd get at least 9 crit fails.

    • @koohikoo
      @koohikoo Před 7 lety +1

      the one time you don't crit fail its a 2

  • @carthius
    @carthius Před 8 lety +6

    I was always to understand that the normal 6d was trusted b/c it was balanced not because each side looks the same
    Also my favorite die has always been the 100 sided

    • @brokenwave6125
      @brokenwave6125 Před 6 lety

      Each side has to look the same or it isnt fair. And what do you mean by "balanced"? Because relative to its center its the least balanced die besides a d4

  • @enderstar5017
    @enderstar5017 Před 8 lety

    I like the dramatic sound when the 60-sided dice fell into the cup like BOOM IM HERE

  • @mattkay4162
    @mattkay4162 Před 8 lety

    Great as usual '!

  • @Chrisallengallery
    @Chrisallengallery Před 8 lety +4

    You didn't explain why symmetry is detrimental to fairness.

    • @JamesRevan
      @JamesRevan Před 8 lety

      It is important for the way the die bounces and rolls.

    • @Chrisallengallery
      @Chrisallengallery Před 8 lety

      I understand that but how is it unfair.

    • @JamesRevan
      @JamesRevan Před 8 lety +1

      Well, it's not just symmetry, but the right amount of symmetry. Imagine a die that has a big square on one side and a smaller one on the other. In a lot of ways it will be symmetrical, but due to the way it's shaped, one side will be heavier. Heavier die on one side, means it will fall with the lighter side up more often. That makes it unfair.

    • @lennyzefflin9876
      @lennyzefflin9876 Před 6 lety

      If not symmetrical then some numbers would have a higher chance of being rolled than others.

    • @CptRyaffio
      @CptRyaffio Před 6 lety

      They say the opposite, most symmetry is what makes a die fair and some symmetry is without effect.

  • @michaelbroon
    @michaelbroon Před 8 lety +7

    Anyone else think the guys head looks like one of those dice ?

  • @VVeedragon
    @VVeedragon Před 7 lety

    I slapped that like button for that incredible roll of a 1.

  • @thetafritz9868
    @thetafritz9868 Před 2 lety +1

    You climb a small tree to get a better vantage point of the path to the tower that is your destination. You grab out your binoculars. You roll to see what you see, you critically failed your d60 roll. The DM is feeling nice and doesn’t want this to be too much of a trouble, so you simply drop your binoculars. You reach for them to catch them, but you roll a 1 on a d120 and fall off the tree, you try to land safely and roll another 1 on a d120. You have such bad luck, that the binoculars somehow land and break in a way that acts as a spear, impaling you through your back, for you were in such shock that you could not change your position mid-air. You have died falling 10 ft off a tree.

  • @kb-ww1uw
    @kb-ww1uw Před 8 lety +4

    Unoriginal joke

    • @nikelf1
      @nikelf1 Před 8 lety

      Unoriginal reply.

  • @powderpuffarpeggio3968

    I love these funky dice so much I'm gonna buy them and add them to my DnD-game through houserules.

  • @DJ_Cthulhu
    @DJ_Cthulhu Před 8 lety

    Cool ... I just ordered some of those skew dice 😀

  • @Blue2x2x
    @Blue2x2x Před 7 lety

    *You show up a D&D game with a pair of the same oddly shape 6 sided dice from the video*
    DM: "Use some real dice"
    ** (You tried to convince the DM that the dice is fair. Roll for persuasion)**
    ** (Roll 1) **
    You: "umm...." *starts rolling odd shaped dice to prove that it's fair, keeping landing on 6*
    DM: "get out, cheater."
    *when you got outside the room, you throw the oddly shape dice on the floor in anger and landed on a 2 and a 3*

  • @legendarybanditmb
    @legendarybanditmb Před 8 lety

    My number theory professor from 2008 at UT Austin! He would juggle for us occasionally. If he's on Numberphile he must be doing well! :)

  • @qeniarbarhzerohrhoht5623

    Those sixty- and hundred-twenty-faced dice, are near about spherical!

  • @ShayBowskill
    @ShayBowskill Před 8 lety

    You should do some more videos with Henry! So much interesting stuff on his channel which doesn't get enough views.

  • @peterpetersen6613
    @peterpetersen6613 Před 7 lety

    The slow-mo footage looked awesome

  • @NKP723
    @NKP723 Před 8 lety +1

    The d&d reference made my day

  • @mikerich32
    @mikerich32 Před 8 lety

    "You gave me loaded dice?!" xD
    Name that movie! :D

  • @Dadadah
    @Dadadah Před 8 lety

    DOCTOR SEGERMAN??? You're on youtube! Awesome!
    I had this guy for Calculus 3!

  • @UriMegaConnor
    @UriMegaConnor Před 7 lety

    (checks for internet connection)
    DM: roll for connection speed.
    D120: *rolls one*
    DM: check for crit
    D120: *rolls one*
    Your internet is so slow that a glitch happened in reality, thus destroying the universe with your party.

  • @sheepphic
    @sheepphic Před 7 lety +1

    On the pentagonal hexecontahedron, you could just number the vertices rather than the faces, like a traditional d4 is numbered

  • @Bubu567
    @Bubu567 Před 3 lety +1

    Rolling 1 on a d60... that is like tying your shoe in a game of D&D, falling over, and breaking your neck.

  • @Asgaia
    @Asgaia Před 8 lety +1

    The cube shaped dice is not fair. (btw. in german a a dice is a Wuerfel, and a cube is a Wuerfel, too)
    So I suppose the skewed six faced dice is fairer.
    When you roll a dice by hand it rotates more around one axis. If you rotate it so that this main rotation axis goes through the 2 and 5, both 2 and 5 are less likely. If you roll it on a surface that stops the rolling relatively fast, say a table cloth, even the number of revolutions are far from beeing random. If you roll a dice with the same drive (trying to let it roll only around one axis) you'll learn what number has to be on top to get a 6. I used this as a child when playing with my parents etc.

  • @MajkaSrajka
    @MajkaSrajka Před 8 lety +1

    I'd say that 'just enough symmetry' may be better, as it could be harder to master skewed rolls on such thing (especially if you just switched from one to the other :P).