A Quote by Richard P. Feynman

Einstein's gravitational theory, which is said to be the greatest single achievement of theoretical physics, resulted in beautiful relations connecting gravitational phenomena with the geometry of space; this was an exciting idea.
Wormholes are a gravitational phenomena. Or imaginary gravitational phenomena, as the case may be.
It would of course be a great step forward if we succeeded in combining the gravitational field and the electromagnetic field into a single structure. Only so could the era in theoretical physics inaugurated by Faraday and James Clerk Maxwell be brought to a satisfactory close.
Experimentally, we now have demonstrated that Einstein's theory is right in strong gravitational fields. That's important to a lot of people.
Even if 'going retrograde' or 'moving into Aquarius' were real phenomena, something that planets actually do, what influence could they possibly have on human events? A planet is so far away that its gravitational pull on a new-born baby would be swamped by the gravitational pull of the doctor's paunch.
The students on my course were fascinated by the idea that gravitational waves might exist. I didn't know much about them at all, and for the life of me, I could not understand how a bar interacts with a gravitational wave.
I thought that there must be an easier way to explain how a gravitational wave interacts with matter: If one just looked at the most primitive thing of all, 3D floating masses out in space, and look at how the space between them changed because of the gravitational wave coming between them.
One of the most exciting things about dark energy is that it seems to live at the very nexus of two of our most successful theories of physics: quantum mechanics, which explains the physics of the small, and Einstein's Theory of General Relativity, which explains the physics of the large, including gravity.
Practitioners of SI do not feel ourselves to be therapists. The gravitational field is the therapist. What we do is prepare the body to receive the support from the gravitational field which gives a greater sense of well being.
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.
It's a spectacular signal. It's a signal many of us have wanted to observe since the time LIGO was proposed. It shows the dynamics of objects in the strongest gravitational fields imaginable, a domain where Newton's gravity doesn't work at all, and one needs the fully non-linear Einstein field equations to explain the phenomena.
This is the first real evidence that we've seen now of high gravitational field strengths: monstrous things like stars moving at the velocity of light, smashing into each other, and making the geometry of space-time turn into some sort of washing machine.
Einstein had looked at the numbers and dimensions that went into his equations for gravitational waves and said, essentially, 'This is so tiny that it will never have any influence on anything, and nobody can measure it.' And when you think about the times and the technology in 1916, he was probably right.
The detection of gravitational waves is truly a triumph of modern large-scale experimental physics.
To say that a body or its gravitational field 'bends in space' in its vicinity is the discuss visual space in acoustic terms.
The three-body problem is a term borrowed from physics. It is a phenomenon that can basically be explained like this: Two objects in space can interact in a predictable fashion rotating around each other due to their gravitational pull. But if a third object is introduced, it makes their interaction more complicated.
We know about black holes and neutron stars, but we hope there are other phenomena we can see because of the gravitational waves they emit.
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