Domino Addition - Numberphile

  • Published: 04 April 2014
  • Matt's Big Domino Computer:
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Comments • 1 122

  • T.
    T.  4 weeks back

    1:15 input 2 knocked over on it's own, then input 1 knocked over too = profit

    • TOLO009
      TOLO009  1 months back

      5:00 if you hit input 1, input 2 and output will fall, right?

      • Maxi Rios
        Maxi Rios  2 months back

        Matt only pushed one input, so this means
        in1=0 in2= 1,
        so 0 xor 1 = 1 and this will make output(units) "true" i.e. this dominoes will fall when in1 + in2 = 1
        0 and 1 = 0 = making "true" the output(twos), i.e. this dominoes will fall when in1 + in2 = 2
        in the video, half adder computes output(twos) after 0 + 1...

        • Peter Bonnema
          Peter Bonnema  2 months back

          Should've formally introduced the OR gate and then built up the XOR gate from AND and OR gates

          • William Biggs
            William Biggs  2 months back

            Next, Matt will stack dominoes to calculate π🤔

            • UnknownRager96
              UnknownRager96  3 months back

              11:57 you can see how perfect the dominoes right before the and gate line up

              • Traywor
                Traywor  3 months back

                I build up the DOMINO INTERNET.

                • Leonard Gotlibowski
                  Leonard Gotlibowski  4 months back

                  AND? OR? XOR? HOW?!

                  • Leonard Gotlibowski
                    Leonard Gotlibowski  4 months back


                    • Adam Gimfalk
                      Adam Gimfalk  5 months back

                      I like this because I’ve learned all the names of the gates from redstone logic in minecraft.

                      • Geoffrey Zoref
                        Geoffrey Zoref  5 months back

                        Great description of lg

                        • Patrick Demko
                          Patrick Demko  5 months back

                          Followed along in Mario maker

                          • Grass Observator
                            Grass Observator  5 months back

                            17:08 I would do that :)

                            • Rune Kristensen
                              Rune Kristensen  5 months back

                              Mathematicians really are the smartest people in the world. They've found a way to get paid for playing with dominos all day. Now that is clever!

                              • DOMINIC FRANCIS ALVAREZ
                                DOMINIC FRANCIS ALVAREZ  6 months back

                                2:18 a Tflop from Minecraft

                                • Cracked Emerald
                                  Cracked Emerald  6 months back

                                  What kind of hellspawned dominos have 9 dots on them?

                                  • Joseph DESTAUBIN
                                    Joseph DESTAUBIN  6 months back

                                    20 years I've been trying to understand computers on a fundimental level, and I think I finally do.

                                    • Michael Kelley
                                      Michael Kelley  6 months back

                                      It's Dominos all the way down.

                                      • Goryllo
                                        Goryllo  7 months back

                                        I thought the title was 'domino addiction' and Matt would tell the story of how he managed to quit it

                                        • Ken
                                          Ken  7 months back

                                          Does anyone else get motion sickness from this channel?

                                          • Infinite Planes
                                            Infinite Planes  7 months back

                                            I found a more reliable way to do domino computing. It’s slower, but uses less dominos.

                                            • Luis J. Martinez
                                              Luis J. Martinez  8 months back

                                              Qué bueno que el inglés es mi segunda lengua.

                                              • DeCube
                                                DeCube  9 months back

                                                Your soofas look comfy

                                              • Benjamin Newlon
                                                Benjamin Newlon  9 months back

                                                But can it run "DOOM"?

                                                • J.B.
                                                  J.B.  9 months back

                                                  Building that must have been a nightmare

                                                  • Benjamin Maclaren
                                                    Benjamin Maclaren  9 months back

                                                    This would be much easier if we had a dominoe laying machine..........................hmmm...........I'll be back....

                                                    • Veristian Arvico
                                                      Veristian Arvico  9 months back

                                                      how to built AND GATE and exclusive all in minecraft

                                                      • Evan Carroll
                                                        Evan Carroll  10 months back

                                                        This is such an awesome educational tool. I love it!

                                                        • Benjinater 066
                                                          Benjinater 066  12 months back

                                                          Another step in the direction of ridiculous.

                                                          • Dave Moore
                                                            Dave Moore  1 years back

                                                            10:03 inattimate objects?

                                                            • Commander Vander
                                                              Commander Vander  1 years back

                                                              Make this advanced enough that it can run unity, then make a simulation of itself in unity, then make that run Minecraft and make a computer with red stone.

                                                              • ujjwal Kumar
                                                                ujjwal Kumar  1 years back

                                                                Genius circuitry

                                                                • Shailesh Rana
                                                                  Shailesh Rana  1 years back

                                                                  I think Brad is just the right mix of fun and brilliant

                                                                  • DerSibbe
                                                                    DerSibbe  1 years back

                                                                    If you accidentally get a bug into this thing, it might knock out the entire system...

                                                                    • Xnoob Speakable
                                                                      Xnoob Speakable  1 years back

                                                                      3:49 you can pronounce it like zor or you can pronounce it as ksor

                                                                      • Uditnarayan Sachan
                                                                        Uditnarayan Sachan  1 years back

                                                                        Very nice

                                                                        • Marc Telfer
                                                                          Marc Telfer  1 years back

                                                                          Woah, I watch this video several times a year, and I've only just realised that Matt said "inatimate" instead of "inanimate". He was just so excited.

                                                                          • Gagan Surathkal
                                                                            Gagan Surathkal  1 years back

                                                                            10:02 inatimate.....

                                                                            • Skeleton Rowdie
                                                                              Skeleton Rowdie  1 years back

                                                                              omg this was utterly satisfying

                                                                              • Ben Toth
                                                                                Ben Toth  1 years back

                                                                                So we have binary half adders and binary full adders. Would a binary blackadder be Rowan Atkinson digitized?

                                                                                • Lancelot Xavier
                                                                                  Lancelot Xavier  1 years back

                                                                                  I love it !
                                                                                  All he needed were some dominos, a brown paper, and a marker.

                                                                                  In America,, we have a powerful teacher's union that protests all the time they need higher salaries and even bigger budgets (we have the biggest per student in the world) to teach little children the most elementary concepts.

                                                                                  • Furry NightShade
                                                                                    Furry NightShade  1 years back

                                                                                    Please, make a NOT gate out of dominoes!

                                                                                    • Venkatesh babu
                                                                                      Venkatesh babu  1 years back

                                                                                      You can use natural delays to count.

                                                                                      • Rahsab Dassa
                                                                                        Rahsab Dassa  1 years back

                                                                                        Nice video for showing in my computer science class.

                                                                                        • dotdot
                                                                                          dotdot  1 years back

                                                                                          2 + 2 = 4 minus 1 that's 3 quick maffs

                                                                                          • Aditya Kumar
                                                                                            Aditya Kumar  2 years back

                                                                                            Matt is seriously interested in sharing his views on the logic circuits, i think that's his favourite part in maths☺️☺️

                                                                                            • Nigit
                                                                                              Nigit  2 years back

                                                                                              I'd rather eat pizza (Better than dominos)

                                                                                              • Will Morris
                                                                                                Will Morris  2 years back

                                                                                                I love this video as I learned all about logic gates in school this year