Speed Solve of a Rubik's Cube in Slow Motion - Numberphile
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Date: 2022-04-08
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Comments and reviews: 9
Down
Wait a minute. Listen to me babbling on like the 89th of the 100 monkeys, who got stuck with writing act III of Hamlet at union scale. I'm going on about something I must be the gazillion-cotillionth guy to catch on to. Something that all of the experts already allowed for, when they were doing the permutations calculations. The fact that the corner pieces also can't be changed in their relationships of their 3 assigned colors. Doesn't that ALSO cut down that huge number of possibilities? The number of possibilities that the professor (who does the trick with tying his shoes in one move) takes like 13 seconds to fully enumerate in that voice-over? I'm still trying to figure out that shoe-tying trick. I refuse to watch that video again, I'm going to figure out that -How mathematicians tie their shoes- trick if it kills me. And shouldn't that word be MATHS-ematicians?
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Wait a minute. Listen to me babbling on like the 89th of the 100 monkeys, who got stuck with writing act III of Hamlet at union scale. I'm going on about something I must be the gazillion-cotillionth guy to catch on to. Something that all of the experts already allowed for, when they were doing the permutations calculations. The fact that the corner pieces also can't be changed in their relationships of their 3 assigned colors. Doesn't that ALSO cut down that huge number of possibilities? The number of possibilities that the professor (who does the trick with tying his shoes in one move) takes like 13 seconds to fully enumerate in that voice-over? I'm still trying to figure out that shoe-tying trick. I refuse to watch that video again, I'm going to figure out that -How mathematicians tie their shoes- trick if it kills me. And shouldn't that word be MATHS-ematicians?
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Bolter21Mapping
To be honest, every person can learn the method of solving a Rubic Cube. I learned the simple way (and had a record of 45 seconds) and also learned the advance method for a 2x2 cube and solved it in 3 seconds.
I didn't finish learning the advanced method for a 3x3x3 (takes about a week to master) but it is really possible.
Everyone can learn the advanced method of solving a Rubik's Cube, it takes a week and only requires some training and you could solve the cube in less than 30 seconds.
The people who go to contests all use advanced methods, but they don't see the cube and know exactly what will be the 20 moves, but insteed they work by stages.
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To be honest, every person can learn the method of solving a Rubic Cube. I learned the simple way (and had a record of 45 seconds) and also learned the advance method for a 2x2 cube and solved it in 3 seconds.
I didn't finish learning the advanced method for a 3x3x3 (takes about a week to master) but it is really possible.
Everyone can learn the advanced method of solving a Rubik's Cube, it takes a week and only requires some training and you could solve the cube in less than 30 seconds.
The people who go to contests all use advanced methods, but they don't see the cube and know exactly what will be the 20 moves, but insteed they work by stages.
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Craig
So, due to the quintillion possible mixes, would it be fair to say. If you randonly mix up a cube, the resulting cube would be in a state that no other cube has ever been in or ever will be in, from the start until the end of the Universe? Similar to shuffling a pack of cards? My fave thing is to say to a friend -Let, me show you something you have never seen before-. I shuffle a pack of cards then show them the outome. Simple.
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So, due to the quintillion possible mixes, would it be fair to say. If you randonly mix up a cube, the resulting cube would be in a state that no other cube has ever been in or ever will be in, from the start until the end of the Universe? Similar to shuffling a pack of cards? My fave thing is to say to a friend -Let, me show you something you have never seen before-. I shuffle a pack of cards then show them the outome. Simple.
reply
Scottish
One number that has always bothered me is '9'
If you multiply it by any number greater than '0' then the remaining digits in the answer always add up to 9 when you round it down to one digit.
Ex: 9x55 =495
4+9+5=18 1+8=9
It would be great if you could explain this as it doesn't happen with any of the other 1-8 numbers.
Thank you and love your vids: )
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One number that has always bothered me is '9'
If you multiply it by any number greater than '0' then the remaining digits in the answer always add up to 9 when you round it down to one digit.
Ex: 9x55 =495
4+9+5=18 1+8=9
It would be great if you could explain this as it doesn't happen with any of the other 1-8 numbers.
Thank you and love your vids: )
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wallo
I can solve in 2 min. mostly less than 90 seconds.
Does God's no had different formula?
because he and I completely different moves.
I fix the edges, then layers and finally all the layers.
like length x breadth x height.
Does anyone familiar with this formula.
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I can solve in 2 min. mostly less than 90 seconds.
Does God's no had different formula?
because he and I completely different moves.
I fix the edges, then layers and finally all the layers.
like length x breadth x height.
Does anyone familiar with this formula.
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Chordeiles
wouldn't it be fun to put an unsolveble rubickscube in one of this contests and see how long it takes them to realise?
i mean i don't want to mock them i think it could give me a better impression on how their brain works this stuff out
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wouldn't it be fun to put an unsolveble rubickscube in one of this contests and see how long it takes them to realise?
i mean i don't want to mock them i think it could give me a better impression on how their brain works this stuff out
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jacob
Dude I'm sorry but what is this video? they're obviously trying to appeal to non cubers, but numberphile's fanbase is filled with cubers in the first place. sorry this video did nothing for me and I'm a bod disappointed.
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Dude I'm sorry but what is this video? they're obviously trying to appeal to non cubers, but numberphile's fanbase is filled with cubers in the first place. sorry this video did nothing for me and I'm a bod disappointed.
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Thomas
4 years ago Numberphile inspired me to learn how to solve the Rubik's cube. Since then i've been to many competitions, my record is 12. 39 seconds and I average 18-19 seconds. Thanks Brady! -From a longtime viewer
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4 years ago Numberphile inspired me to learn how to solve the Rubik's cube. Since then i've been to many competitions, my record is 12. 39 seconds and I average 18-19 seconds. Thanks Brady! -From a longtime viewer
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Icearstorm
If you can solve iterations 0 and 1 of a Menger sponge (a Rubik's cube and a void cube, respectively, then could you make a second-iteration Menger sponge that could be solved, or is that impossible?
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If you can solve iterations 0 and 1 of a Menger sponge (a Rubik's cube and a void cube, respectively, then could you make a second-iteration Menger sponge that could be solved, or is that impossible?
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