TED-Ed

View full lesson: http://ed.ted.com/lessons/da-vinci-s-vitruvian-man-of-math-james-earle What's so special about Leonardo da Vinci's Vitruvian Man? With arms outstretched, the man fills the irreconcilable spaces of a circle and a square -- symbolizing the Renaissance-era belief in the mutable nature of humankind. James Earle explains the geometric, religious and philosophical significance of this deceptively simple drawing. Lesson by James Earle, animation by TED-Ed.