Theory Of General Relativity Quotes

“Asked in 1919 whether it was true that only three people in the world understood the theory of general relativity, [Eddington] allegedly replied: 'Who's the third?”
― Arthur Stanley Eddington

“Mankind has uncovered two extremely efficient theories: one that describes our universe's structure (Einstein's gravity: the theory of general relativity), and one that describes everything our universe contains (quantum field theory), and these two theories won't talk to each other.”
― Christophe Galfard, The Universe in Your Hand: A Journey Through Space, Time, and Beyond

“The big question in cosmology in the early 1960s was did the universe have a beginning? Many scientists were instinctively opposed to the idea, because they felt that a point of creation would be a place where science broke down. One would have to appeal to religion and the hand of God to determine how the universe would start off. This was clearly a fundamental question, and it was just what I needed to complete my PhD thesis.
Roger Penrose had shown that once a dying star had contracted to a certain radius, there would inevitably be a singularity, that is a point where space and time came to an end. Surely, I thought, we already knew that nothing could prevent a massive cold star from collapsing under its own gravity until it reached a singularity of infinite density. I realised that similar arguments could be applied to the expansion of the universe. In this case, I could prove there were singularities where space–time had a beginning.
A eureka moment came in 1970, a few days after the birth of my daughter, Lucy. While getting into bed one evening, which my disability made a slow process, I realised that I could apply to black holes the casual structure theory I had developed for singularity theorems. If general relativity is correct and the energy density is positive, the surface area of the event horizon—the boundary of a black hole—has the property that it always increases when additional matter or radiation falls into it. Moreover, if two black holes collide and merge to form a single black hole, the area of the event horizon around the resulting black hole is greater than the sum of the areas of the event horizons around the original black holes.”
― Stephen Hawking, Brief Answers to the Big Questions

“Newton's laws of motion put an end to the idea of absolute position in space. The theory of relativity gets rid of absolute time. Consider a pair of twins. Suppose that one twin goes to live on the tip of a mountain while the other stays at sea level. The first twin would age faster than the second. Thus, if they met again, one would be older than the other. In this case, the difference in ages would be very small, but it would be much larger if one of the twins went for a long trip in a spaceship at nearly the speed of light. When he returned, he would be much younger than the one who stayed on Earth. This is known as the twins paradox, but it is a paradox only if one has the idea of absolute time at the back of one's mind. In the theory of relativity there is no unique absolute time, but instead each individual has his own personal measure of time that depends on where he is and how he is moving.”
― Stephen Hawking, A Brief History of Time: From the Big Bang to Black Holes

“From the computer to the universe everything is in the binary form, either as material or immaterial force, either as a material or an immaterial object, The Simplified Theory of Everything”
― P.S. Jagadeesh Kumar

“Imparting to the 'Ruby Philosophy of Illusional Antigravity', for every stable gravitational pull experienced by any material or immaterial object, there exists an opposite instable gravitational pull experienced by that object, that opposite illusion of
gravity is termed as the illusional antigravity”
― P.S. Jagadeesh Kumar

“For every direction of motion there is an equal and opposite direction of motion irrespective of the gravitational force inhibited and exhibited”
― P.S. Jagadeesh Kumar

“For every stable gravitational pull experienced by any material or immaterial object, there exists an opposite instable gravitational pull experienced by that object, that opposite instable gravity is termed as the illusional antigravity”
― P.S. Jagadeesh Kumar

“The expanding cosmos or the expanding universe thoroughly demonstrates that no object from quantum to relativity persists in its state of rest in the complete absence of gravity”
― P.S. Jagadeesh Kumar

“Any fluid material possesses the highest gravitational response than any physical material for any given balanced or unbalanced mass”
― P.S. Jagadeesh Kumar

“In the presence of other fundamental forces, gravitational force plays the least role and in the absence of other fundamental forces, gravitational force plays the pivotal role”
― P.S. Jagadeesh Kumar