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Colin McAllister
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Photo: Tetrahedron with Edge Lengths 3, 5, 7, 11, 13, 17 I finally got around to folding one of the paper templates described in my previous blog post "Templates for Asymmetric Integer Tetrahedra". I printed it on an A4 sheet of paper and folded it into the solid shape shown.... Continue reading
Posted Sep 20, 2015 at Colin McAllister's blog
Image: An Asymmetric Tetrahedron with Prime Numbered Edge Lengths We are all familiar with the Regular Tetrahedron. It has six edges of equal length and four faces that are equilateral triangles. An Asymmetric Tetrahedron has edges of different length, and triangular faces of different shape and size. Asymmetric Tetrahedra are... Continue reading
Posted Jun 15, 2015 at Colin McAllister's blog
A movie by Frans Pretorius at Princeton University shows the simulation of two black holes colliding, at:
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Sep 4, 2010