ALBERT EINSTEIN is rightfully celebrated as one of the world's brightest minds thanks to his monumental contributions to the field of theoretical physics. Listen to the genius himself explain his most ...
Albert Einstein's theory of general relativity has held up pretty well after a century out in the world. The famous theory, which Einstein published in 1915, remains the bedrock upon which scientists' ...
The speed of light is constant but length and time can change when objects travel at close to the speed of light. These changes depend on the relative motion of the observer and the object.