We can get valuable insights from asking a trusted person for guidance. Someone who truly cares for us. Someone who wants us to be happier. But sometimes people throw advice at you when you didn't ...

For new discoveries, everyday mysteries, and the science behind the headlines, follow NPR's ShortWave podcast . Over a century ago, the German psychologist Wolfgang Köhler conducted what became a ...

Place any number of dots on a two-dimensional plane—say, a piece of paper—and measure the distance between each pair. If you rearrange the dots, how many pairs could be positioned exactly the same ...