A couple of years ago we posted about an infinite photo called As Seen on Earth. National Geographi...  ...d As Seen on Earth. National Geographic has a new infinite photo project called Tropical Island. At the link...

(YouTube link) Vi Hart calls herself a "recreational mathemusician", which sounds like fun! In this video, she teaches more about math than she missed by doodling during class. See more of this sort of thi...