Making efficient Platonic and Archimedean shapes in a kaleidoscope
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8:01
How to Make a 3D Kaleidoscope DIY
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25:59
Can the Same Net Fold into Two Shapes?
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26:19
Perfect Shapes in Higher Dimensions - Numberphile
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9:57
Como Hacer un Caleidoscopio ( Kaleidoscopio) Casero--How to Make a Kaleidoscope (Kaleidoscope) Home
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28:43
The ALMOST Platonic Solids
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23:43
Calculating π with Avogadro's Number
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19:01
A New Discovery about Dodecahedrons - Numberphile
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20:12