Fibonacci on the beach

Discover Magazine just published a beautiful gallery of photos of super-duper closeups of grains of sand. See the spiral? Tell me that's not math. There are several gorgeous sand pictures here. I'm sure I'll never look at the beach the same way again.

Sexy-ass math tattoos

And I thought my pi was cool. These put my pi to shame. Now I'll have to get something more complex, like e to the i pi plus 1.