Speed of Light Archive

The Principle of Special Relativity Einstein’s Special Theory of Relativity, published in 1905, revolutionized our understanding of space and time. It is built on two fundamental postulates: the

The speed of light is one of the most fundamental constants in physics, but its discovery was not immediate. For much of history, philosophers and scientists debated whether

If you speed up in space, then time slows down to compensate. If you are standing still, then time is travelling at 100% of its speed. No matter