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=== What does this have to do with Penrose Steps? === | === What does this have to do with Penrose Steps? === | ||
* [https://en.wikipedia.org/wiki/Penrose_stairs Penrose stairs] | * [https://en.wikipedia.org/wiki/Penrose_stairs Penrose stairs] | ||
* [https://en.wikipedia.org/wiki/ | * [https://en.wikipedia.org/wiki/Spinor Spinor] | ||
We’ve heard Eric talk about Penrose stairs and spinors - essentially phenomena where you cannot return to the original state through a 360 degree rotation, but require a 720 degree rotation. | We’ve heard Eric talk about Penrose stairs and spinors - essentially phenomena where you cannot return to the original state through a 360 degree rotation, but require a 720 degree rotation. |