The book still had her name inside it.

In behavioral economics, choice architecture — how options are presented — dramatically affects decisions.

Ancient Greek athletes competed naked in the original Olympics — the word 'gymnasium' comes from the Greek for 'naked.'

Archery was the first sport to be included in the Olympics after its original ancient form disappeared from the games.

Jesse Owens won four gold medals at the 1936 Berlin Olympics, directly challenging Hitler's ideology of Aryan supremacy.

Synchronized skating — where teams of up to 20 skaters perform together — is a competitive discipline not yet in the Olympics.

Speed cubers can solve a Rubik's Cube in under 4 seconds — the world record is 3.13 seconds.

Particles can exist in multiple states until observed.

The maximum legal weight for a cricket ball is 163 grams — close to a baseball but harder.