That is, for Hartshorne communication between God and the world is not subject to the same limitation as is communication between man and the world, namely, the limitation imposed by the finite velocity of light. (religion-online.org)
BSIT also enables the speeding up and slowing down of the group velocity of light. (sciencedaily.com)
At one point Fizeau's measurement of the velocity of light in water seemed a conclusive refutation of the corpuscular theory of light; but the latter returned, in a new form, in Einstein's theory of photons. (religion-online.org)