Speed of Light
Speed of Light The second assumption made by Albert Einstein in his Special Theory of Relativity was the Principle of Invariant Light Speed. This principle…
Tag: Light Clock
In Einstein’s Special Theory of Relativity, a Light Clock is a mechanism that consists of a light emitter, a mirror, and a light detector. The Light Clock works by emitting a photon, bouncing it off of the mirror, and detecting the returning photon. Knowing the distance the photon travels and the time it takes the photon to cover that distance, the Light Clock can accurately measure the speed of light. However, the Light Clock can only work within an Inertial Frame of Reference. It cannot be used to measure the speed of light moving between Inertial Frames of Reference.