Take a piece of paper. Crumple it ... What happens in a crumpled ball stays in a crumpled ball. 'I love it that these simple-looking problems are so nasty sometimes.'"If you're not talking ...

From studies of “geometric frustration,” scientists learn how paper folds ... center of the crumpled ball, and which part will be more toward the edges? Although these are simple questions ...

That’s because they study the physics of crumpled ... can a sheet of paper become an unaccountably tough projectile simply by the act of crushing? The answer might seem simple, but it turned ...

That insight, arrived at in part by balling up sheets of standard-sized A4 office paper, offers a simple explanation for the ridges and valleys that give rise to thoughts, memories and emotions.