Ballet shoes are made to last only 12–20 hours of use for professional dancers.

Particles can exist in multiple states until observed.

Freestyle skiing's halfpipe event requires athletes to complete tricks at heights of up to 7 meters above the pipe's lip.

The Olympic flame tradition was revived at the 1928 Amsterdam Games; the torch relay began at the 1936 Berlin Olympics.

In 2000, a massive fireworks accident damaged part of a Dutch city.

Particles can exist in multiple states until observed.

The first Olympic marathon winner, Spiridon Louis, was a Greek shepherd who had never trained formally.

Rowing is considered one of the most physically demanding Olympic sports, requiring near-maximal effort for about 6 minutes.

The longest recorded point in a professional tennis match lasted over 40 shots.