What creates gravity and why? i heard some says its a part of string theory bullshit?

Question

i dont why scientists tryin to connect natural forces as one. why they take everything scientific ?science is to some degree

Answer 1

gravity is caused as a result of mass warping the spacetime continuum. whenever an object has matter, it has mass. whenever an object has mass, it warps space time to some degree. you computer... tv... even our car key has a certain amount of gravitational pull. they don't have that much obviously, but they are made of matter therefore they do have gravity.

this is proven in newton's law of universal gravitation. the gravatational constant is 6.626 x 10^-11 N per square unit of mass. in simple terms an object that has the mass of 1 kg, has .000000000066726 N of gravitational force. make sense?

now that you understand the fundementals of gravity, lets talk about how exactly it is created.

as i said before, any object with mass will warp the space time continuum to some degree. mass bends spacetime, and creates a sort of a ditch, if you will. a pocket in space time. the fabric isn't ripped... its just bent. this pocket attracts other objects. so for example, lets say i have a bowling ball. i also have a very long peice of plastic, stretched out so it is taut. this plastic will represent the fabric of spacetime. the bowling ball will represent a massive object, such as the sun. when i place the bowling ball in the middle of the plastic, what happens? it is bent. it creates a pocket around the bowling ball. now i am going to take some small marbles. these marbles will represent smaller objects with less mass than the bowling ball. when i place these in the plastic what do they do? they roll towards the bowling ball. the curviture of the plastic made them roll down, to the bowling ball. thats pretty much the same thing that happens in space.

a massive object bends space time. as a result, a pulling force is produced. smaller objects that are close enough to this massive object, are attracted to it.

so why doesn't earth fall into the sun? this is where the model doesn't work so well. the earth, like all other objects made of mass, have their inertia. inertia is the tendency of an object to resist motion. the more mass, the more inertia. the marbles in the model don't have that much mass, and as a result don't have a noteable amount of inertia. they earth, and the other planets, do. thats what is stopping them from falling into the sun.

about the natural forces, i'm not sure what you mean by that. gravity isn't a man made force, it is a force found naturally throughout the universe.

Answer 2

From the way you write (punctuation, capitalization, incomplete sentences) I hope you are only a third grader or younger. Science is anything BUT BS. Theories must be tested. There are very strict reviews of the findings of these tests. They must be repeatable. The theory must work under varying circumstances. Science is very demanding.  

Gravity has had various Theories through out the ages.  Sir Isac Newton came up with the Theory we use today. Other than Gravity's ability to bend time we still use his Theory.  Albert Einstein's Theory of Relativity added to our understanding of Gravity.  String Theory was not even thought of when I was in school. I did study Quantum Theory, which in many ways is in conflict with String Theory, BUT neither is absolute yet. They are Theories, and subject to further testing.  

Science and it's Theory's have brought mankind from the Stone Age to today's modern world.  Science will continue to make life easier for mankind, and solve many of the problems we have today, and problems we haven't even imagined yet today.

Please get an education, or at least have a little respect for those that do.

Answer 3

Gravity is nothing but bending of spacetime around an object with a large mass. In fact every matter exhibits gravity but the smaller ones are more difficult to detect.

Answer 4

I think the gravity part of your question has been answered adequately enough. You really need to work on your English and your manners if you want people to answer your question fully. Calling string theory "bullshit" is not only disrespectful, it also highlights your total ignorance of theoretical physics and science in general.

Answer 5

Gravity is a curvature in space-time that is created locally by the presence of matter.  A curve in space is represented by a change in direction.  A curve in space-time is represented by a change in speed, since speed is a function of both space and time.  Einstein explained acceleration as tracing a curve through space-time, while gravity is a curvature in space-time itself.  Anything entering a gravitational field will follow that curvature by accelerating along the axis facing the gravitational source.

Answer 6

I have answered this several times before; I'll just  give you links to a few of my answers.

Answer 7

Since you have discernment enough to unilaterally declare string theory "bullshit", I'll let you answer your own question, you surely must know the answer better than we mere mortals ever could.

Answer 8

String theory is as yet untested, and may be b.s.

General Relativity is our best theory of gravity, and in General Relativity, the "source" of gravity is stress-energy, which is a highly generalized and inclusive term for all types of mass and energy.

All the forces but gravity have been unified.  This is a grand aesthetic simplification.

Answer 9

Gravity is created by mass.  Mass is made up of subatomic particles - protons, neutrons and electrons.  Each particle attracts every other particle through the force of gravity.

There are 4 forces: weak nuclear, strong nuclear, electromagnetic, and gravity.

The electromagnetic force can be attraction (unlike charges) or repulsion (like charges), so in any large object there is pretty much equal amounts of like and unlike charges, so electromagnetic attraction and repulsion balance each other.

The nuclear forces are strong but only over tiny distances (the width of a nucleus or an atom) so they aren't felt outside the atoms themselves.

Gravity, though it is the weakest of the 4 fundamental forces, is only attractive and is felt over great distances.

So when you get a chunk of mass together, all those tiny particles exerting their tiny bit of gravitation adds up to one large force.

Not sure what you are trying to say in the rest of your question, " dont why scientists tryin to connect natural forces as one. why they take everything scientific ?science is to some degree"...its incomplete (and I don't understand what you are upset about).

Answer 10

By understanding 'natural forces' we can better understand how we should fit into the universe and can improve as stewards of the environment.  Science is merely carefully observing the physical universe, and creating models to predict how the universe behaves - the closer our modeling approaches reality, the better understanding we have of that reality.