OnlyEndangereds an OF account for endangered species
I guess this is NSFW, sort of? For National Endangered Species Day the Quick Response Fund for Nature (QRFN) has
In 1956 Escher attempted to create a picture where there was a continuos frame linking the large image and the next smaller image in a spiral. He created a spiralling grid and used that as the basis for the unusual lithograph 'Prentententoonstelling', the print room. It depicts a young man viewing a print on a wall of a gallery, but as he follows the image of the print he finds a repeated smaller image of himself standing in the same gallery. The centre of the image is an unfinished blank space, where Escher signed and mono-graphed the piece.
This "droste effect" (named after the Chocolate brand that featured a recursive image on it packaging way back in 1904) was the inspiration for OneInThree's music video for the Wild Beasts. The Leiden University & the University of California at Berkeley initiated a joint project to decode the math of the drawing and attempted to develop a more satisfactory way of filling the 'hole' in Eschers drawing. As a result of their research they developed a formula which could complete the drawing. Josh Sommers translated this formula to into MathMap a program that allows one to distort images on a pixel by pixel basis based on instruction specified in a simple programming language. (more inside folks)