I suppose it makes sense to use polar coordinates to map the sky if you’re an anti-aircraft gunner.
This interesting application of mathematics is brought to you by the USS Intrepid.
Geometry Photography
Math Photo: Tessellated Tent
Here’s an interesting structure from a neighborhood park. It seems to be half an icosahedron, whose triangles are lined with empty bottles. Art, or eco-friendly greenhouse?
Photography
Math Photo: Orthogonal Trajectories
This lovely photo was taken by mathematician Peter Krautzberger. Peter knows that I enjoy photographing mathematics, so he shared this great image with me. And he graciously let me share it here, and approved of the title.
I often admire crossing contrails high above in the sky, but I can’t say I’ve ever seen two so perpendicular!
Peter is a friend and colleague from MathBlogging.org, where he is a co-founder. Peter also works on MathJax, and is consumed by publishing math on the web. You can follow him on Twitter at @pkrautz. Thank you, Peter, for sharing!
Appreciation Geometry Photography
Math Photo: Sixths of Sky
There is a lot of math to see when you look up, especially if you’re standing inside the skeleton of a hexagonal pyramid.
Appreciation Photography
Math Photo: Colorful Venn
This colorful Venn diagram was a lucky find in the dollar bin. Maybe it was so cheap because it only has 12 regions, instead of the 63 that six sets should generate.
I suppose it would be more realistic if everything outside the colored region was black, and the point at the very center was white.