This value's reciprocal gives the slope of the sides of a cone drawn in a representation of four dimensions showing the limits of causality.
This value's reciprocal gives the slope of the sides of a cone drawn in a representation of four dimensions showing the limits of causality. It is exceeded in the Hartman Effect and plays an important role in the second postulate of special relativity. Advancements in measuring this constant were made by Romer, Fizeau, and Foucault, the last of whom used a rotating mirror. Its value in a vacuum is reached by electromagnetic radiation and generally cannot be reached by particles with mass. Give this value equal to about three hundred million meters per second.
This value's reciprocal gives the slope of the sides of a cone drawn in a representation of four dimensions showing the limits of causality.
Speed of Light (in a vacuum) (accept equivalents, prompt c or c0)