# 600-cell

In geometry, the 600-cell is the convex regular 4-polytope (four-dimensional analogue of a Platonic solid) with Schläfli symbol {3,3,5}. It is also known as the C600, hexacosichoron and hexacosihedroid. It is also called a tetraplex (abbreviated from "tetrahedral complex") and a polytetrahedron, being bounded by tetrahedral cells. The 600-cell's boundary is composed of 600 tetrahedral cells with 20 meeting at each vertex. Together they form 1200 triangular faces, 720 edges, and 120 vertices. It is the 4-dimensional analogue of the icosahedron, since it has five tetrahedra meeting at every edge, just as the icosahedron has five triangles meeting at every vertex. Its dual polytope is the 120-cell. (Wikipedia).

2¹⁰²⁴ #MegaFavNumbers

My entry in the #MegaFavNumbers project by James Grime and Matt Parker. The number in question is 2¹⁰²⁴, also known as 179,769,313,486,231,590,772,930,519,078,902,473,361,797,697,894,230,657,273,430,081,157,732,675,805,500,963,132,708,477,322,407,536,021,120,113,879,871,393,357,658,789,76

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This video explains how to convert a base sixty number to base ten with a decimal. http://mathispower4u.com

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#MegaFavNumbers This video is my second one on YouTube also for mega favourite numbers. Sorry for my poor English. thanks again.

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3,088,286,401 and DNA - MegaFavNumbers

#MegaFavNumbers Hello world, i'm an Italian med student with a huge passion for maths. I tried to find a number from something I am deeply fond of: genetics. For the record, this is the lenght of the reference genome GRCh38. You can find out more here: http://m.ensembl.org/Homo_sapiens/

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Dual Half 120- and 600-Cells

This shows a 3d print of a mathematical sculpture I produced using shapeways.com. This model is available at http://shpws.me/3NgX

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Excel 2010 Business Math 23: Fraction Business Math Word / Application Problem

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This shows a 3d print of a mathematical sculpture I produced using shapeways.com. This model is available at http://shpws.me/3NgS

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Joint work with Saul Schleimer. Shapeways shop: http://shpws.me/rcuu

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The lymphatic system's role in immunity | Lymphatic system physiology | NCLEX-RN | Khan Academy

Learn about how B and T cells reside in lymph nodes. Find out how that enables them to get a preview of what they need to be prepared to fight. By Patrick van Nieuwenhuizen.. Created by Patrick van Nieuwenhuizen. Watch the next lesson: https://www.khanacademy.org/test-prep/nclex-rn/rn-ly

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