Mount Tai (泰山, Tài Shān) is a place of historical and cultural significance located north of the city of Tai'an, Shandong province, China. A flight of 7,200
Originally created by Arthur Shapiro and Alex Rose-Henig of American University, this illusion gives the overall impression that all of the movement involved is circular – but it's
«When you study other worlds you learn much more about your ownx — Carl Sagan talks with Terry Wogan, 1985…
