Le dessin du cercle / Freehand circle drawing

[youtube https://www.youtube.com/watch?v=eAhfZUZiwSE&w=420&h=315]

Alexander Overwijk dessine un cercle parfait à la main? Qu’en pensez vous?

Alexander Overwijk shows his unique talent of drawing perfect freehand circles. What do you think?

Story from
http://www.avatargeneration.com/2012/10/incredible-blackboard-drawing-skills-how-do-you-compare