Recent content by medgalis

Ok, so I don't understand, what information is a photon carrying? It's mass, velocity or something like that?

Hello, So i have heard that virtual particlees just pop-in and pop-out of existence, but if a black hole is near those particlee one of the pair of the virtual particlees gets sucked in. So what happens to the other particlee?

Hello, i have been watching documentaries and reading papers about the universe and I've noticed that there are many opinios on the size of the universe. Some say it's infinite and some say it's not. But if it's not, then it has to have a center. So my question is, is the universe infinite or...

Oh. Well i didn't know that.

But she still teaches this kind of a thing she believes it and i don't know how can she still believe it. And she says that a moving photon has mass.

She says it can be calculated with E=mc^2.

Me and my teacher have been arguing, whether photons have or don't have mass. I say that it's impossible for photons to have mass, but my teacher says that we can calculate the photons mass. So my question is, can photons have mass?

I am really interested what are quasars and how do they work.

How can matter produce gravity.

Yes, that's exactly what i wanted to ask, but didn't know how to ask.

Hello. This topic might seem stupid, but i got interested in quantum gravity and I didn't understand how gravity grasps and distorts spacetime. So my question is, how can gravity distort spacetime?