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Before becoming a physicist, before being the editor in chief of the Journal of Quantum Electronics, before helping NASA design its largest space telescope, Robert Lang learned to fold paper. Already ...

This experiment shows how to fold a square piece of paper into a water bomb (also known as an origami balloon). By carefully folding corners, tucking in flaps, and blowing air into the final pocket, ...

Precision is key, whether folding a humble crane or an interlocking modular structure. So is enthusiasm. Written by Kathleen Massara Photographs by Ryan Jenq Paper cranes folded by New Yorkers and ...