Weekend miscellany

Math and aesthetics

Beautiful architecture video.  No explicit math, but lots of math behind the scenes.

Some math and some great images:  3-DSpirographs

Advanced math with some pictures: algebraic topology books for download from J. P. May and Allen Hatcher. (Hatcher’s book has more pictures.)

Miscellaneous

There’s really nothing that cannot be innovatived

Failure insurance for students

Genes and patents

Why Donald Knuth does not use email