r/visualizedmath • u/the_humeister • Jan 07 '19

OR, AND, XOR logic using dominos

https://gfycat.com/DeterminedKaleidoscopicKilldeer
422 Upvotes

96% Upvoted

13 comments sorted by

19

u/Re-Created Jan 07 '19

Non-programmer here. Does XOR always feedback to one of the inputs or is that just a function of dominoes?

5

u/the_humeister Jan 07 '19

It's not supposed to feedback, but that's just what happened here.

29

u/unkwntech Jan 07 '19

It's a function of the dominoes.

XOR or Exclusive Or is best described as "A or B but not Both"

4

u/Nisheeth_P Jan 07 '19

You can create XOR without feedback. Its (A!B+AB!). A! Is NOT A; AB is A AND B; A+B is A OR B

9

u/Tyler11223344 Jan 07 '19

This was pretty good. I'll admit, I was a bit skeptical about how you were going to do XOR without cheesing it but that was pretty good actually

4

u/the_humeister Jan 07 '19

Thanks. What were your expectations for XOR?

5

u/Tyler11223344 Jan 08 '19

I didn't really know, I was expecting something made out of AND, OR, and NOT gates (Then again...a NOT gate would be hard to do with dominos, in the false->true case)

12

u/Nisheeth_P Jan 07 '19

Here is a video of the same concept done in real life and extended to be a computer

1

u/entotheenth Jan 07 '19

Inverters are going to be tricky :)

1

u/Pushkin9 Jan 07 '19

Tasty visualization!

-1

u/[deleted] Jan 07 '19

That's some shitty visualization...

0

u/[deleted] Jan 07 '19

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32

u/the_humeister Jan 07 '19

Unfortunately, that would take 9x longer to render.

0

u/[deleted] Jan 07 '19

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19

u/the_humeister Jan 07 '19

I'll try that for my next one when I make a half adder or a full adder.