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Paul Steinhardt, “Indiana Steinhardt and the Quest for Quasicrystals” (Open Agenda, 2021)

New Books in Science, Technology, and Society

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How to Tile Your Bathroom Floor With Pentagons

There are strict rules about what symmetries, or what forms you can have. In some ways, it's a little bit like a a a tiling in two dimensions. And then the way the solid is built up is just by repeating that arrangement over and over and over again. So if we heard a sound which was a combination of two tones which were disharmonic, your first reaction would be, probably tht, that's noise. But if you took its fora transform, if you analyzed its tones, you'd actually find it's not noise. Noise would have a broad spectrum of frequencies. This really would just be two tones, but they happen to be in dish

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