A Quote by Priyamvada Natarajan

We cannot explain the phenomenon of gravitational lensing without general relativity, and this is where MOND spectacularly fails. — © Priyamvada Natarajan
We cannot explain the phenomenon of gravitational lensing without general relativity, and this is where MOND spectacularly fails.
General relativity predicts that time ends inside black holes because the gravitational collapse squeezes matter to infinite density.
When general relativity was first put forward in 1915, the math was very unfamiliar to most physicists. Now we teach general relativity to advanced high school students.
Black holes do not emit light, so you visualize them through gravitational lensing - how they bend light from other objects.
Gravitation cannot be held responsible for people falling in love. How on earth can you explain in terms of chemistry and physics so important a biological phenomenon as first love? Put your hand on a stove for a minute and it seems like an hour. Sit with that special girl for an hour and it seems like a minute. That's relativity.
[Max Planck] was one of the finest people I have ever known... but he really didn't understand physics, [because] during the eclipse of 1919 he stayed up all night to see if it would confirm the bending of light by the gravitational field. If he had really understood [general relativity], he would have gone to bed the way I did
Einstein had two new predictions from general relativity. One was that light would bend. That was tested in 1919, and basically, he was proven right. The second prediction was gravitational waves, which took us 100 years to prove. The theory itself, which is thought by most to be rather obscure, you use every day, probably.
Gravitational waves will bring us exquisitely accurate maps of black holes - maps of their space-time. Those maps will make it crystal clear whether or not what we're dealing with are black holes as described by general relativity.
Gravitational waves will bring us exquisitely accurate maps of black holes - maps of their space-time. Those maps will make it crystal clear whether or not what were dealing with are black holes as described by general relativity.
Relativity propped it up, at least gave it the illusion of being there…the way all reality becomes illusory and observer-oriented when you study general relativity. Or Buddhism. Or get drafted.
General relativity is in the old Newtonian framework where you predict what will happen, not the probability of what will happen. And putting together the probabilities of quantum mechanics with the certainty of general relativity, that's been the big challenge and that's why we have been excited about string theory, as it's one of the only approaches that can put it together.
Relativity can, for instance, explain that the universe had once been clumped into a dense fireball. But it can never explain how matter actually behaved.
Look at the Intifadah in Jerusalem. One cannot understand that phenomenon, a phenomenon where people, often very young boys, are successfully harassing one of the best armies in the world, without appreciating their freedom to move!
Love as a concrete foundation for an authentically functional civilization requires the around-the-clock labors of forgiveness. Without it, Love fails, Friendship fails, Intelligence fails, Humanity: fails.
It is ironic that Einsteins most creative work, the general theory of relativity, should boil down to conceptualizing space as a medium when his original premise [in special relativity] was that no such medium existed[..].
String theory is the most developed theory with the capacity to unite general relativity and quantum mechanics in a consistent manner. I do believe the universe is consistent, and therefore I do believe that general relativity and quantum mechanics should be put together in a manner that makes sense.
Recent results from astronomers who study the occasional gravitational lensing of unknown worlds by intervening stars suggest that orphan planets could be at least as numerous as the stars. In other words, there could be hundreds of billions of orphan worlds shuffling through our galaxy.
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