The concept of mass in general relativity (GR) is more complex than the concept of mass in special relativity. In fact, general relativity does not offer a single definition for the term mass, but offers several different definitions which are applicable under different circumstances. Under some circumstances, the mass of a system in general relativity may not even be defined.
Read more about Mass In General Relativity: Review of Mass in Special Relativity, Defining Mass in General Relativity: Concepts and Obstacles, History, Questions, Answers, and Simple Examples of Mass in General Relativity
Famous quotes containing the words mass, general and/or relativity:
“It is almost impossible to be a doctor and an honest man, but it is obscenely impossible to be a psychiatrist without at the same time bearing the stamp of the most incontestable madness: that of being unable to resist that old atavistic reflex of the mass of humanity, which makes any man of science who is absorbed by this mass a kind of natural and inborn enemy of all genius.”
—Antonin Artaud (18961948)
“A general loathing of a gang or sect usually has some sound basis in instinct.”
—Ezra Pound (18851972)
“By an application of the theory of relativity to the taste of readers, to-day in Germany I am called a German man of science, and in England I am represented as a Swiss Jew. If I come to be regarded as a bĂȘte noire the descriptions will be reversed, and I shall become a Swiss Jew for the Germans and a German man of science for the English!”
—Albert Einstein (18791955)