Why two mass attracts each other?

[Markus Hanke]

I don't know why you are having such a strong apathy to the term "force". I don't know if you have skipped Newtonian Physics.

I have no apathy towards the notion of "force". The only point I am trying to make is that this thread is about GR, and in GR there are no forces involved in the description of gravity and its effects.

 

[OnlyMe]

OnlyMe: Newton said this in a letter to Dr Richard Bentley on 25 February 1692:

“That gravity should be innate, inherent, and essential to matter, so that one body may act upon another at a distance through a vacuum, without the mediation of anything else, by and through which their action and force may be conveyed from one to another, is to me so great an absurdity that I believe no man who has in philosophical matters a competent faculty of thinking can ever fall into it”

This demonstrates that he did not like the idea.., not that he was presenting anything to the contrary.

He was no fan of action-at-a-distance. In Opticks, queries 20 and 21 he said this:

"Doth not this aethereal medium in passing out of water, glass, crystal, and other compact and dense bodies in empty spaces, grow denser and denser by degrees, and by that means refract the rays of light not in a point, but by bending them gradually in curve lines? ...Is not this medium much rarer within the dense bodies of the Sun, stars, planets and comets, than in the empty celestial space between them? And in passing from them to great distances, doth it not grow denser and denser perpetually, and thereby cause the gravity of those great bodies towards one another, and of their parts towards the bodies; every body endeavouring to go from the denser parts of the medium towards the rarer?"

There is nothing in the above that suggests Newton, associated the medium and the optics, of that medium as it relates to light, with gravity.

He also conducted experiments in alchemy and other areas of the occult.

It has been a long time since I read Opticks. Show me a direct quote that suggests Newton associated gravitation with the density of the aether.., the medium referenced...

I believe one can see similar reasoning in Einstein's writings, but others dispute that.

In this you are correct! The above is disputable.

Newton toyed with a number of ideas including shadow gravity. I don't remember anywhere he actually endorsed any mechaism for gravity. Like Einstein, he described how objects interact with each other, without any commitment to how that interaction happens.

 

[Tach]

Except that you don't inderstand GR so you can't say why, right?

Conversely, since it is true that mass increases as velocity does, and since matter, to create a black hole, must accelerate towards a cxommon centre.

You have so many misconceptions in one single sentence,

why doesn't the matter accelerate past c?

....because mainstream science says that the upper limit is c, so "matter CANNOT accelerate to c", let alone "past" c.

I bet you have no idea, none at all.

Growing a little petulant when your errors are pointed out to you, eh?

 

[AlexG]

Except that you don't inderstand GR so you can't say why, right?

Conversely, since it is true that mass increases as velocity does, and since matter, to create a black hole, must accelerate towards a cxommon centre. why doesn't the matter accelerate past c?
I bet you have no idea, none at all.

Mass does not increase with velocity, relative energy increases. Relativistic mass is an obsolete concept, which causes all sorts of misconceptions. Black Holes are formed by the gravitational collapse of massive objects (stars). Matter, (anything with mass) cannot accelerate TO c, and there's nothing which can exceed c.

 

[PhysBang]

OnlyMe: Newton said this in a letter to Dr Richard Bentley on 25 February 1692:

...

He was no fan of action-at-a-distance. In Opticks, queries 20 and 21 he said this:

Science is not done through taking out-of-context quotations from the speculation of scientists while ignoring the details of their serious work.

 

[arfa brane]

Relativistic mass is an obsolete concept, which causes all sorts of misconceptions.

No, I think it's easier to understand that there is a relation between mass and energy, As for accelerating faster than c, how was Einstein's objection shown ro be irrelevant? Why doesn't it matter that nothing can go faster than c, in the context of gravitational collapse? Do you know?
Does Tach? I doubt it.

Who was first with a model of gravitational collapse?

 

[Tach]

No, I think it's easier to understand that there is a relation between mass and energy, As for accelerating faster than c, how was Einstein's objection shown ro be irrelevant? Why doesn't it matter that nothing can go faster than c, in the context of gravitational collapse? Do you know?
Does Tach? I doubt it.

As a matter of fact, I do. This is why I was able to redline all your hilarious errors. Your arrogance is also why funkstar no longer teaches you math.

 

[arfa brane]

As a matter of fact, I do.

I don't believe you. Prove it.

This is why I was able to redline all your hilarious errors.

I'm glad for you, but where and what with?

Your arrogance is also why funkstar no longer teaches you math.

funkstar had no intention of teaching me anything, neither do you.

 

[Tach]

I don't believe you. Prove it.

Nice try, no free lessons for you.

I'm glad for you, but where and what with?

See the redlining of your hilarious post. AlexG pointed out some of the same misconceptions in your post, I suggest that you take the corrections to heart.

funkstar had no intention of teaching me anything, neither do you.

We both gave up, you aren't worth it.

 

[arfa brane]

Nice try, no free lessons for you.

You are truly pathetic, my son. No free sermon, huh?

 

[Tach]

Except that you don't inderstand GR so you can't say why, right?

Conversely, since it is true that mass increases as velocity does, and since matter, to create a black hole, must accelerate towards a cxommon centre. why doesn't the matter accelerate past c?
I bet you have no idea, none at all.

You see, relativistic mass has no effect on the creation of black holes. I do not know where you get this fringe idea.
Also, massive objects cannot attain c, let alone surpass it. Again, I don't know where you got the kooky idea that "matter accelerates past c".

 

[jermy]

Two masses attract each other because of their gravitational pull. Gravity is a force pulling together all matter so if the matter is more then they are attract more.

 

[Pete]

This thread seems to be reduced to ridicule.