In 1967, the IMAX film system was invented by Canadian Ivan Grame Ferguson to premier at Expo 67.

A brown dwarf is a very small, dark object, with a mass less than 1/10 that of the Sun. They are 'failed stars', globules of gas that have shrunk under gravity, but failed to ignite and shine as stars.

Approximately 16,500 people in the U.S. go by the last name Lemon.

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