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Gravitational waves were predicted by Einstein's theory, but they have never been directly detected. We have very strong indirect evidence, and we all believe his theory. Visual: Scientists in control room, monitoring computer screens. But we never saw these waves directly, so that’s why we want to measure them. Visual: Mike Zucker in office
Feb 3, 1997 · The interesting thing is that the estimated energy output of the event in gravitational waves is about (3.0 +/− 0.5) M☉ × c2. That is three times the rest mass of our sun converted into energy. More recently, the aLIGO team announced the detection and analysis of another binary black hole merger event, GW151226.
Jan 6, 2022 · Gravity is a pulling force (always a force of attraction) between every object in the universe (every bit of matter, everything that has some mass) and every other object. It's a bit like an invisible magnetic pull, but there's no magnetism involved. Some people like to call this force gravitation and reserve the word gravity for the special ...
Our modern understanding of gravity comes from Albert Einstein’s theory of general relativity, which stands as one of the best-tested theories in science. General relativity predicted many phenomena years before they were observed, including black holes, gravitational waves, gravitational lensing, the expansion of the universe, and the different rates clocks run in a gravitational field.
t. e. General relativity is a theory of gravitation that was developed by Albert Einstein between 1907 and 1915, with contributions by many others after 1915. According to general relativity, the observed gravitational attraction between masses results from the warping of space and time by those masses. Before the advent of general relativity ...
1910s. Einstein's 1911 argument for gravitational redshift. 1911 – Albert Einstein explains the need to replace both special relativity and Newton's theory of gravity; he realizes that the principle of equivalence only holds locally, not globally. [43] 1915-16 – Albert Einstein completes his general theory of relativity.
This theory is called general relativity. Nowadays, scientists are still trying to understand the gravity in the universe better. They study how planets move around each other, how black holes work, and how the universe itself is expanding. There is still so much more to learn about gravitational theory!
