December 1, 2014. The eye can detect light at wavelengths in the visual spectrum. Other wavelengths, such as infrared and ultraviolet, are supposed to be invisible to the human eye, but Washington University scientists have found that under certain conditions, it's possible for us to see otherwise invisible infrared light. Credit: Sara Dickherber.
Albert Einstein (14 March 1879 â 18 April 1955) was a German-born theoretical physicist.[5] Einstein developed the theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics).[2][6]:274 Einstein's work is also known for its influence on the philosophy of science.[7][8] Einstein is best known by the general public for ...
General relativity is a metric theory of gravitation. At its core are Einstein's equations, which describe the relation between the geometry of a four-dimensional, pseudo-Riemannian manifold representing spacetime, and the energyâmomentum contained in that spacetime.eneral relativity has a number of physical consequences. Some follow directly from the theory's axioms, whereas others have become clear only in the course of many years of research that followed Einstein's initial publication.