We all know masses attract each other, but what is the mechanism, the machinery of gravity?
129047
There are two theories.\n\n1.  Mass has the attribute of warping space much as a billiard ball placed on a thin sheet of rubber would warp the flat sheet.\n\n2.  Massless particles called gravitons interact between the masses involved.
391685
Gravity is the force that pulls things on to Earth.\nWeight is how heavy something is.\nThey are related because gravity pulls down weight on to the Earth. \nhope this helps!
226272
There are four fundamental forces. Weak, strong, electromagnetic, and gravitational. They are seperate at low energies (all energies we experience around us). Gravity is definitely not just magnetism. Gravity acts on mass and energy (so everything), whereas electromagnetism only acts on electrically charged particles. They are definitely not the same thing.\n\nInteresting though: at extremely high energies the electromagnetic and the weak force combine into the electroweak force (done in high energy particle accelerators). The theory is that the strong force could also be combined into the electroweak force at insanely high energies...but we aren't really close to those kinds of energies in particle accelerators yet. From this reasoning it is possible that gravity could also be combined into the gravitational-strong-electroweak force haha. This would be at energies that are impossible to recreate though. Theories are that there was one grand energy working in the universe in the first fractions of a second of its existence after the Big Bang (since energies were increeedibly high). Then the gravitational force "departed" from it, then the strong, then the weak force, creating the four I mentioned before.\n\nThere definitely is a gravitational force though. It really is just masses attracting each other. General Relativity has a nice accurate description of gravity as well (without which a lot of our technology would not be possible, GPS for example).
23639
The amount of matter in an object is called its mass. The force of gravity is dependent on the amount of mass a body has. That means that the gravity on the Earth is greater than the gravity on the Moon, since the Earth has much more matter or mass than the Moon.
327992
Every atom has gravitational forces, also known as the "VanderWaal force". This force is linearly related to the mass of the particle. As the mass grows (a cluster of particles, an object, a planet) the gravitational force gets larger, being the sum of all individual gravitational forces. The gravitational force only influences objects that have a mass of there own. So a ball is attracted by the Earth and the ball attracts the Earth.
266454
Newton's second law is \nforce = mass x acceleration\n\nHow about this? Two men were walking on a hill when they see a bar of chocolate at the bottom. Both are eager to get it. The first man, a skinny little guy of 120 lbs, trips and begins rolling down the hill. The second man, a fatty of 250 lbs, trips at the same time and begins rolling down the hill. Because the fat man has more mass, he is able to produce more force to accelerate himself down the hill faster than the skinny man. The happy fat man reaches the bottom of the hill first, and eats the chocolate.\n\nIllustrations shouldn't be too hard.
314359
I am not 100% sure what you are asking but electromagnetic force is considerably stronger than gravitational force. Just think a fridge magnet can pick up a paper clip which has the entirety of the earth pulling down on it. So it would probably be easier to attract people with electromagnetics than gravity even though our mass is much greater than our charge
116604
The law you are referring to is the law of inertia, which is directly related to the laws of gravity.  The heat from the sun and it's gravitational pull are what "make the earth go round"
458576
Glad to see you're thinking, but this is an easily answered question.  \n\nTake for example a magnet.  Regardless of what is in front of your magnet it will still attract an object to a distance equal to its strength.\n\nex:\n\n.....(|)<<<< <[]<<<<<<<[]          \n\n......^..............^...... ......^\nMagnet......Metal..... ..Metal\n.................Object.... Object\n\nThe magnet is going to exert force on both of the objects without interference from first object.  \n\nBased on your definition of propagate...come to your own conclusion...that is the joy of thinking...we all have our own thoughts.
256130
Hey, man, if a rock is heavy, that means it is attracted to another body of mass.  So the question is: Can God create two bodies of mass that are so attracted that he cannot keep them apart?  Well, if he could compress the whole universe into the size of a pin-head to create the big bang, then I would have to say....maybe.
530899
did he? \nhe talked about attraction force (F) between bodies (m1, m2, staying d distance apart) though\nF = G (m1. m2) / d^2
39273
Einstein alluded about forces saying that they are fictitious.This make sense because forces do not exist unless there is an interaction between two entities.\nThe magnetudes of interaction depends on the densities of the masses and their volume.The greater the densities the greater the interaction.Thus we can categorize them.\nHowever ;the mechanisms involved is the same in all interactions!Einstein Related this mechanism to a curvature.\nHe had discovered when a force comes into being it comes  from a common  mechanism(.A force is a force ). Force only come into being only as pairs.A force cannot exist by itself no more than a magnet having a single pole.\nUnfortunately ,He had the basis for a Unified Theory and did not realize it.\nAs far what has been measured in the interaction of micromasses or micromasses,I  dont believe there is anything exact.Only approximtions.\nThe phenomena of gravity apply to both micromasses as well as Macromasses.This is the only thing that is Realistic.\nIn other words Electrical phenomena as well Gavity are all one and the same Phenomena.\nYou may not agree with it but its a more realistic answer than resorting to the aphabetic soup of forces that the Physists have concocted as saying that they are different Phenomenae.\nIf you dont understand about their description of weak,strong nuclear forces, dont feel bad. I doubt that they fully understand it themselves!
180734
It is a factor in their formation. As matter gravitationally comes in proximity with other matter, the "pieces" start orbiting one another. As other pieces join the group, they influence all the other pieces in the group simultaneously, so the whole set of objects tends to change it's axis of rotation as a group. In the end, there is a cluster of objects that all tend to rotate within the same general plane or around the same axis of rotation.\n\nFor example, most of the planets in the solar system rotate on an axis that is very similar to their axis of revolution around the sun. This is because the "pieces" of mater that formed the solar system started rotating around (orbiting) one another in a single plane. As some of the pieces crashed into one another and combined into planets, stars, etc. some of the orbital energy was transformed into rotational energy, but with angular momentum in the same direction as the rotational energy. Thus revolution and rotation are generally in the same direction with similar axes.
49988
In general relativity, mass affects space and time, causing what we call gravity, and time dilation. The equations predicted that clocks in a gravity field would run more slowly, although the effect is very slight for most masses that we are familiar with, like the Earth. It has been measured and agrees well with predictions.\n\nSimilarly, the equations predicted that light would be bent around a mass, like the sun, and this has also been proved to be correct. In fact, strong gravity sources can create illusions, sometimes splitting the image of a light source behind a high-gravity object so it appears to us to be two separate images.\n\nA new discovery is that the rotation of a gravity source, like the sun or a galaxy, causes "frame dragging", that is, distorts spacetime like water around a spinning ball, also predicted by Einstein's theory.\n\nThere are a lot of good science sites on the web for this information.
132751
because all of these facts can be proven scientifically...it is just a matter of fact that all bodies are attracted to one another with equal and opposite forces.... but the larger the mass the more attraction there is and with gravity the sun has enough mass to keep the earth falling toward it and the earth has enough mass to keep the moon falling toward it and these same forces keep us from flying off the earth.....if you took some physics and chemistry classes it may start to make sense to you but you may still question it until you have taken calculus classes that put out the math to prove it so if you are interested in this maybe you should pursue it more it is all very interesting
499193
well, we know that F = ma, and with gravity, F = mg\n\nWhat causes this force? gravitational attraction, which is defined by:\n\nF = Gm1m2/r^2\n\nSo, we can say that mg=Gm1m2/r^2, where r is the distance between 2 objects (1 and 2).\n\nnow, lets solve it for g\n\ng=Gm/r^2\n\nthis shows us that g varies inversely with the SQUARE of the distance.  So the distance between the earth and an object would need to be r*(sqrt2)
669222
A field of gravity is a field of physical time.  The equation for this force is part of the physics trilogy, they are:\n\nE = mc2, shows the foundation of energy.\n\nm = E/c2, tells how mass is formed.\n\nc2 = E/m, states  that a gravitational force is that of a mass/energy relationship.  As either of these factors change, so also would a gravitational field.  This equation shows that a gravitational field moves at a particular speed, and that speed, to mankind, is one of time.\n\nAt http://timebones.blogspot.com   there is a writing called "The Problem and Repair of Relativity".  It is short and easy to understand, it may make it easier to understand.