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Convert light speed (vacuum) to mile/day
Selected category: speed.
Definition and details for light speed (vacuum):
Speed of light (c) in vacuum is equal to 299 792 458 meters/sec with a relative measurement uncertainty of 4 parts per billion. Up to 17th century humanity wasn't sure if light was transmitted instantaneously or simply very quickly. The Danish astronomer, Ole Christensen Rømer first demonstrated that light travelled at a finite speed when he studied the apparent motion of Jupiter's moon Io.
Definition and details for mile/day:
Mile per day is a unit of velocity equal to about 18.6267 mm/sec. This unit is also based on the statute mile.

Swap light speed (vacuum) - mile/day values Swap, do a mile/day to light speed (vacuum) conversion.