There is a word in Japanese, 'tsundoku', meaning buying books and never reading them.

Operation Northwoods was a proposed U.S. plan in the 1960s that was never carried out.

The Higgs boson, discovered in 2012, is the particle responsible for giving other particles their mass.

The marathon distance of 26.2 miles was standardized at the 1908 London Olympics to finish in front of the royal box.

The Olympic rings represent the five continents of the world — but no particular ring is tied to a specific continent.

Aboriginal Australians have oral traditions and songlines that preserve ecological knowledge going back tens of thousands of years.

Particles can exist in multiple states until observed.

Music can influence mood and emotional state.

Particles can exist in multiple states until observed.