Group theory 101: How to play a Rubiks Cube like a piano - Michael Staff
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Date: 2020-08-22
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Comments and reviews: 7
mi_ao
this has gotta be the most negatively received video by ted-ed.
most people miss the point or are pretending they do.
I think its about how the faces of a cube can resemble chords in a piano, so one should be able to play all the notes just by scrambling the cube in a deterministic way.
thats exactly what the video is saying
why is everyone so confused
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this has gotta be the most negatively received video by ted-ed.
most people miss the point or are pretending they do.
I think its about how the faces of a cube can resemble chords in a piano, so one should be able to play all the notes just by scrambling the cube in a deterministic way.
thats exactly what the video is saying
why is everyone so confused
reply
Sara
It's unfortunate that the examples you used for associativity were on cyclic subgroups, all associations performed on powers of a single element. They could easily be confused with commutativity, which is not a group requirement.
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It's unfortunate that the examples you used for associativity were on cyclic subgroups, all associations performed on powers of a single element. They could easily be confused with commutativity, which is not a group requirement.
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Anshuman
As A 25 Second Rubik's Cube Solver, I Can Confirm That I Do NOT Try To Find A Solution For The Rubik's Cube At Once
Instead, We Solve It Step By Step And For Each Step There Are Many More Than 1 Ways Of Doing It
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As A 25 Second Rubik's Cube Solver, I Can Confirm That I Do NOT Try To Find A Solution For The Rubik's Cube At Once
Instead, We Solve It Step By Step And For Each Step There Are Many More Than 1 Ways Of Doing It
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MC
Ok so just a heads-up for whoever hasn't watched the video yet, it isn't actually about playing music with the Rubik's cube, but solving the Rubik's cube similarly to how you play the piano.
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Ok so just a heads-up for whoever hasn't watched the video yet, it isn't actually about playing music with the Rubik's cube, but solving the Rubik's cube similarly to how you play the piano.
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Tanvi
at 1: 10 they say 1 + 2 is the same as 2 + 1; I feel like this implies commutativity, which, while true in the case of the integers, does not follow from associativity. Kind of confusing
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at 1: 10 they say 1 + 2 is the same as 2 + 1; I feel like this implies commutativity, which, while true in the case of the integers, does not follow from associativity. Kind of confusing
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Lobster13
I'm convinced this only appeared in my recommended because I have been working with Group Theory in Inorganic Chem -_- not a fan of it at all
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I'm convinced this only appeared in my recommended because I have been working with Group Theory in Inorganic Chem -_- not a fan of it at all
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Gonzalo
Cool video but totally off the point in the title, now you know all the elements in the rubicks cube are harmonial just like in music, so now?
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Cool video but totally off the point in the title, now you know all the elements in the rubicks cube are harmonial just like in music, so now?
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