21–30 of 108 posts
Earlier quoted context omitted.
Or gravity is just bending of space around a mass. And not a force.
Not a physicist, but how do you get something to bend without a force exerted upon it?
That might not answer all of your or my question. But maybe we didn't give enough time to ponder on that line.
The title is about gravity, but the first line is about wave of gravity. Hmm. We know that gravity alone can create radiation - the Hawking one. We also know that gravitational waves - the spacetime curvature changes with time - carry energy, so can be transformed into light. Do we still know if spacetime alone can create light?.. I'm not sure we know it today. So... we have a great experiment here, which shows somet…
To be pedantic, we don't know this. Hawking radiation has never been observed.
So the trick to creat this light in todays environment would be to make a gravity amplifying device similiar to a https://en.wikipedia.org/wiki/Gravity_laser and overlay the amplitudes? That can be easy. Just have a microscopic black hole particle go back and forth in a field..
And I just upgraded all of my bulbs to LED...
Isn't gravity just a fundamental force? Could it be matter reacting to gravity? Light is energy but gravity is not energy and has no mass so how can it create something out of nothing? How is hawking radiation even possible unless something else was involved?
Or gravity is just bending of space around a mass. And not a force.
General Relativity posits that gravity embodies both of those qualities you mentioned.
It is a force that bends space and dilates time.
Earlier quoted context omitted.
> Isn't gravity just a fundamental force? Not really. Gravity is most accurately described by the general theory of relativity... which describes gravity not as a force, but as the curvature of spacetime, caused by the uneven distribution of mass, and causing masses to move along geodesic lines.[1] [1] https://en.wikipedia.org/wiki/Gravity
You have to remember that General Relativity is wrong. We don't know exactly how it's wrong, but it's wrong. In light of that fact, it's not really a proper answer to say that "General Relativity says it isn't so it isn't." It is true that GR says gravity isn't a force, but the implication doesn't follow. We don't know whether a Grand Unified Theory would have gravity as a force or not. Given that a great deal of the…
I really don't, because it really isn't. All I need remember is that you are wrong.
The title is about gravity, but the first line is about wave of gravity. Hmm. We know that gravity alone can create radiation - the Hawking one. We also know that gravitational waves - the spacetime curvature changes with time - carry energy, so can be transformed into light. Do we still know if spacetime alone can create light?.. I'm not sure we know it today. So... we have a great experiment here, which shows somet…
> We know that gravity alone can create radiation - the Hawking one To be pedantic, we don't know this. Hawking radiation has never been observed.
Earlier quoted context omitted.
Or gravity is just bending of space around a mass. And not a force.
Not a physicist, but how do you get something to bend without a force exerted upon it?
Earlier quoted context omitted.
Or gravity is just bending of space around a mass. And not a force.
Not a physicist, but how do you get something to bend without a force exerted upon it?