The speed of light in vacuum, commonly denoted c, is a universal physical constant important in many areas of physics. Its exact value is defined as
299792458 metres per second (approximately
300000 km/s, or 186000 mi/s).
299792458 metres per second
The speed of light in vacuum,
commonly denoted c, is a universal
physical constant important in many
areas of physics. Its exact value is
defined as 299792458 metres per
second (approximately 300000 km/s,
or 186000 mi/s).
It is a basic postulate of the theory of relativity that the speed of light is constant. This can be broken down into two parts: The speed of light is independent of the motion of the observer. The speed of light does not vary with time or place.
1 week ago
299792458 metres per second (approximately
300000 km/s, or 186000 mi/s).