I am teaching a course this summer in Cornell called Prove It! Very intense - in 6 weeks we are covering equivalent to one semester. Not much time for blogging because I have never taught this course before and I do want to show my students some elegance in mathematical proofs and in mathematics. Today we are talking about the proofs, and this is a picture of E8, more about it here.
Just couple more recent links on beauty of mathematics:
The Unreasonable Beauty of Mathematics
Aperiodical Tilings in Mexico City
Gardening by the Numbers
Some cool videos about math and art connections from MoMath
