Domino Addition – Numberphile
Matt’s Big Domino Computer:
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Awesome one
This is the height of nerdiness and I love it
no need to play with dominos when minecraft has redstone 🙂
5:33 There's the magic sentence: "I'll give it a go." Totally different context now, but I can't stop noticing it when rewatching older videos.
Whys is he talking in minecraft redstoney language…
Now blackvten calculators seem less impressive to me
Matt should start looking into Minecraft Redstone, I say. It's got a lot of similarity to this.
Ok, Matt, here's a challenge for you: using dominoes, build a NOT gate, ie one input, if that input is 0, the output is 1, and vice versa.
I doubt you're reading comments on multi-year old Numberphile videos, Brady, but this is probably my new favorite Numberphile video. I've always wondered about the very very fundamentals about how this kind of logic stuff works, and binary, and reading about it elsewhere has just made my peabrain struggle, so I'm glad to have found this all of a sudden.
Is addition an O(log n) problem at the machine level, since it requires log_2(n) full-adders to get an output?
Confusing how the units are the output on the left when the convention is on the right
Tile.
13:50 Well, okay, we all use 42 as a placeholder number, I get that. What's weird, is that I constantly use 17 as another placeholder number, and here it is, 42 and 17. What a creepy coincidence 🤔
Great way to learn Boolean algebra
Find someone who looks at you the same way Matt looks at his dominoes.
13:59 [CGP Grey has left the chat]
0:22 weird, woulda thought they called them crisps across the pond.
No, not "Input 1" and "Input 2", you need "Input-0" and "Input-1".
1:15 input 2 knocked over on it's own, then input 1 knocked over too = profit
5:00 if you hit input 1, input 2 and output will fall, right?
WAIT… THATS NOT HOW HALF ADDER WORKS…
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
and
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…
Should've formally introduced the OR gate and then built up the XOR gate from AND and OR gates
Next, Matt will stack dominoes to calculate π🤔
11:57 you can see how perfect the dominoes right before the and gate line up
I build up the DOMINO INTERNET.
AND? OR? XOR? HOW?!
How?!?!?!?!?!
I like this because I’ve learned all the names of the gates from redstone logic in minecraft.
Great description of lg
Followed along in Mario maker
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!
2:18 a Tflop from Minecraft
What kind of hellspawned dominos have 9 dots on them?
20 years I've been trying to understand computers on a fundimental level, and I think I finally do.
It's Dominos all the way down.
I thought the title was 'domino addiction' and Matt would tell the story of how he managed to quit it
Does anyone else get motion sickness from this channel?
I found a more reliable way to do domino computing. It’s slower, but uses less dominos.
Qué bueno que el inglés es mi segunda lengua.
Your soofas look comfy
But can it run "DOOM"?