Recent content by maria_phys

Why? I imagine exactly the opposite. Dark matter interacts with the ordinary matter only via gravity. Assuming an object with very strong gravity, the dark matter would fall immediately into the black hole because of this strong interaction. So, all the dark matter of the universe would fall...

Exactly.

The "shape" has no meaning assuming that quarks has no inner structure. I'm talking about the case of quarks consists of strings.

Yes, I thought about that after I posted my question. Forget about the string. Having a quark moving freely inside the black hole, could tidal forces stretch it out?

I mean, if the tidal force can stressed out the quark, transform it into a string..

I read a very interesting article about the big bang: https://insidetheperimeter.ca/things-didnt-go-so-smoothly-at-the-big-bang/ The Big Bang referred as the initial singularity. Mathematicians use the term "singularity" to indicate that the GR equations are failing when the temperature and...

That exactly what I meant. Thank you. (By the word "shape") A particle could be transform into a string, inside a back hole because of the huge tidal forces?

Interesting. So, assuming that quarks are moving freely in an environment with very strong tidal forces and gravity, can the shape (and properties) of them be changed?

Thank you very much all for your replies. According to your post can we have quarks moving freely, Inside the black hole ? Could the strong tidal gravity overcome the strong force between the quarks?

Thank you for the clarification. So, the only forces in GR are those between atoms (electromagnetism, weak and strong force)? Can the strong tidal forces from a black hole change the structure of an atom?

No gravitational waves are something else.

Newtonian dynamics works really good for objects with low masses. Take for example the gravitational force between Earth and Moon. The space-time curvature is so negligible that has no meaning. In general I agree with you. Yes, in GR is not force. I said that before. But I've tried to clarify...

Hmm, ok I agree with you in general. But assuming that I am an astronaut and I'm traveling directly to the black hole. The effect of the tidal forces wouldn't be the same like the system Earth moon. I will stressed out or shrink in one direction. A force has a direction.

Exactly. We assume that gravity is a force for systems with low masses (like our Earth and moon) . But for heavy objects (like stars etc.) the gravity is so strong that it curvatures the space time. So you can assume that the gravity is coincided with the space-time geometry. However, other...

Assuming that our central black hole is sucking dark matter, can we explain the reason why it's mass is 10^9 solar masses? Dark matter interacts with the ordinary matter (or with any stellar object) via gravity, thus the mass of a black hole is increasing without having any paradox (at first...