Convert light speed (vacuum) to sound speed in air (20 Celcius 60 per cent humidity)
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 sound speed in air (20 Celcius 60 per cent humidity):
Sound speed in the air varies depending on the density and temperature of the air. Conversion center here calculates sound speed at 20 ºC and 60% humidity air