Units of measurement
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Meilen pro Stunde (mph)
Lichtgeschwindigkeit (c)
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Information
Meilen pro Stunde (mph)
Mile per hour (mph) is a unit of speed equal to one mile traveled per hour. It is used in the United States and the United Kingdom to measure vehicle and aircraft speeds.
Lichtgeschwindigkeit (c)
Speed of light (c) is a fundamental physical constant equal to 299,792,458 m/s. It is the maximum speed at which information or matter can travel.