Gadgetopia

Twenty-One, Mosaic: In that special place where LEGO and mathematics meet lies true geek.

Can a square be partitioned into a number of smaller squares such that no two of the smaller are the same size? Casual pondering might lead one to think this geometrically impossible. […]

Artist Eric Harshbarger […] has recreated that unique solution in the adjacent mosaic. By using 21 different colors of LEGO bricks, a different color for each square, he has used the popular construction toy to illustrate the geometry of the problem.

This guy is a professional LEGO artist. Seriously.