Sponsor Message The main part of the Foldscope is one long sheet of paper. Half of this is blue (that's the front portion) and the other half is yellow (which you fold to become the back of the ...

Photoshop tutorial showing how to make a folded paper effect from a flat image including shadows & dimensional folds in 3D space.

Can you solve this week’s logic puzzle? Plus our quick quiz and the answer to last week’s problem ...