Gravity, Black Holes and Stars
Discussion
So, gravity. Its a force that keeps you on the ground and stops everything flying off into space, including the atmosphere. it also lets out planet orbit the sun, and our solar system is orbiting a bigger star (or cluster) at the center of the milky way galaxy, which intern orbits a super massive black hole, which will probably orbit something else until you get to a super dupa f
king great big black hole.
we know what it does, but what I cannot get my head around is why?
why does it do what it does. there are a few explanations to that.
molten iron core or earth spinning round really fast and due to mass(?) and spininess it makes us stick to the floor.
but why? why does the iron core spinning cause us to have gravity?
an then we get onto black holes, i understand that when a star has used all of its fuel, that it collapses in on its self because of the super massive gravity field due to burning up all but iron in the 'atmosphere' of the star, then it cannot burn that so the radiation (in form of rads and heat) does not get pumped out balancing out the gravitational force pulling everything it, it turns into a black hole.
but why does the gravity happen in the first place?
that gets me back onto the first point, how, if the last metal elements of the star get compressed soooo small, does it form enough gravity to swallow everything around including light. same goes for a neutron star, how does that have as much gravity as it does, and don't just say because the star's composition is so compressed because of the gravity that is has a greater pull, as thats just going round in a circle.
its not the fact of just having mass creates gravity, and i know there is a measurement of force called dyne, where it is defined as "the force required to accelerate a mass of one gram at a rate of one centimetre per second squared". but does that not need an earth gravity to be a measurement of force?
so ill cut to the chase as i getting quite tired now its late, so, gravity, how does it work, as i cannot get my head around it, and why, when a star dies, does it turn into a black hole rather than a super compressed metal object, as it has no energy to do anything else as it has burnt it up in its lifetime?
king great big black hole.we know what it does, but what I cannot get my head around is why?
why does it do what it does. there are a few explanations to that.
molten iron core or earth spinning round really fast and due to mass(?) and spininess it makes us stick to the floor.
but why? why does the iron core spinning cause us to have gravity?
an then we get onto black holes, i understand that when a star has used all of its fuel, that it collapses in on its self because of the super massive gravity field due to burning up all but iron in the 'atmosphere' of the star, then it cannot burn that so the radiation (in form of rads and heat) does not get pumped out balancing out the gravitational force pulling everything it, it turns into a black hole.
but why does the gravity happen in the first place?
that gets me back onto the first point, how, if the last metal elements of the star get compressed soooo small, does it form enough gravity to swallow everything around including light. same goes for a neutron star, how does that have as much gravity as it does, and don't just say because the star's composition is so compressed because of the gravity that is has a greater pull, as thats just going round in a circle.
its not the fact of just having mass creates gravity, and i know there is a measurement of force called dyne, where it is defined as "the force required to accelerate a mass of one gram at a rate of one centimetre per second squared". but does that not need an earth gravity to be a measurement of force?
so ill cut to the chase as i getting quite tired now its late, so, gravity, how does it work, as i cannot get my head around it, and why, when a star dies, does it turn into a black hole rather than a super compressed metal object, as it has no energy to do anything else as it has burnt it up in its lifetime?
hmm, ok then.
mass it is.
but why, why does something having mass, create a gravitational field? what causes any object to attract other objects?
can anyone explain why does mass create gravity.
i know the thing about a ball on a sheet that has been stretched out making a dip, but where did that example come from?
why does mass cause gravity
mass it is.
but why, why does something having mass, create a gravitational field? what causes any object to attract other objects?
can anyone explain why does mass create gravity.
i know the thing about a ball on a sheet that has been stretched out making a dip, but where did that example come from?
why does mass cause gravity
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