We love a nice optical illusion (if you hadn't noticed), and happily the internet is full of people creating little gems to trick our eyes. Anyone wanting to create their own won't want to miss this ...

Geometric patterns have been used in art for centuries. They can be seen in the world’s greatest artworks, from Francisco José de Goya to Andy Warhol. “Geometric drawing is fun and rewarding,” says ...

Some optical illusions require creative talent. You have to draw spirals, and pick the right colors, or at least have the ability to make two faces in profile look like one vase. Not these two ...

Artist James Nolan Gandy invents robot arms that sketch intricate mathematical shapes with pen and paper. When viewed in real time, the effect is impressive. But it becomes even more so when the ...