how does gravity work?

Question

what happens between earth and apple when apple is falling towards the center of earth? what is difference between gravitational force and magnetic force? what happens between two magnets when they repeal and attracts? is there any similarities between these two forces?

Answer 1

As Sir Isaac Newton. He discovered it!!!!!

Answer 2

gravitational force is the force related to gravity while magnetic force is the force related to manget and its ability to attract/repel. These force are similar to one another because both are non contact forces but they are significantly different when it comes to their strength/magnitude. Gravitational force is much, much smaller/weaker than magnetic force.

how does gravity works?
Newton was the person behind the concept of gravity; however it was Einstein's idea that showed and was able to decribe how gravity works. Accroding to Einstein, gravity is just the thing we feel when space is distorted or curved. In other words,gravity is the thing that RESULTS when a mass causes the SPACE we live in to form a CURVATURE. To better understand this idea try putting a light ball on a trampoline, then add a heavy block near to it. Now what do you think would happen to the ball? Definitely the ball would follow the curvature the block has made making it FEEL the change in space. The sudden PULL toward the curvature is what we call GRAVITY

Answer 3

Gravitation is basically the radius of cuvature of 4-D spacetime. The apple follows a geodesic (the shortest path in curved 4- space). Magnetism is the relativistic effect of the electric charges moving relative to each other. Yes and no..if you go to extremely short ranges like about the Plank length there is a restoration of symnetry between all the forces when they become identical. This would also seem to suggest that all the curled up dimensions of space-time would also become equivalent and that in the 10^-34 sec before the big bang or the collapse of a neutron star into a black hole, expansion (in 10-D) and cooling (sharing between all the available degrees of freedom) would occur. Maybe they could confirm this with the SHAC expt later this year. Dunno if this helps to solve the infinity problem in that it proposes a finite limit to the gravitational field at v. small distances!

Answer 4

There is clearly a "forces at distant phenomenan", common for both situations. This is the only relation we know for sure.

Unlike gravitation, electromagnetism is more believed to be known. While gravitation is said to be strange, the complete theory of gravitaion is said to be the general relativity which describes, the apple being affected be the gravitational wave ( the ripples created by mass on the space time fabric). The curvature, though being perfect in many cases, do not reveal the ultimate mystery which is still a question. So, this answer is not an answer but just a eloborative form the the same question again.

Answer 5

Scientists have been wrestling with these questions for many years. But Einstein figured out how gravity works. It is a force caused when a mass in space "BENDS" the space-time continuum.

BTW, Newton did not exactly figure out how gravity works or what it is. Newton just figured out that it is caused by matter, and that there is an exact equation you can use to determine its force.

Answer 6

The Earth says to the Apple ''Come here or I'll beat you up'', the apple says ''Okay'' and rushes over to the the Earth. Now then,the bigger the planet the quicker the apple rushes toward that planet. Why? Because the bigger the planet the more the apple is scared of the planet.

I have a PhD in Physics so I should know. If you don't quite understand what I've said (yes I know it is very taxing on the mind) then please do not hesitate to contact NASA. They WILL confirm everything I've told you.

Answer 7

We really, honestly, don't know. We can measure it and predict it. We know its properties. But we don't know why it happens. The general relativity view that spacetime is warped in the presence of mass still has no explanation for why that is true. Nor do we know the reasons for the other fundamental forces.

As far as we know, gravity is unrelated to electromagnetism. There are many more differences than similarities. Learn about them, it's fascinating!

Answer 8

dgravity is the acceleration of free fall
as the apple gets closer to the earth it gets faster
magnetism is similar
as the object of attraction gets closer more attraction takes place

when two magnets attract the poles are dissimilar and when they repel the poles are the same

Answer 9

This is on of those questions which asks the unanswerable- waht are fields? We can detect them and we can see their effect on other objects but we don't actually know what tey are made of. Sure and elecric field contains moving electrons but what does a magnetic field contain? It can move charges and attract or repel other magnets but as to the nature of them? It's on of the great mysteries of life.

Answer 10

Long before Einstein came along, Fatio and LeSage http://en.wikipedia.org/wiki/Le_Sage's_theory_of_gravitation
http://www.mathpages.com/home/kmath131/kmath131.htm
had published a promising, though flawed, description of a plausible cause of gravity. It is too complex to describe here; follow the links if you are interested. Unfortunately, the success of General Relativity has stifled attempts at correcting the flaws in the Fatio/LeSage model.

For several years, I have been in and out of the discussion at VanFlandern’s MetaResearch site.
http://www.metaresearch.org/msgboard/topic.asp?
http://www.metaresearch.org/msgboard/topic.asp?
http://www.metaresearch.org/msgboard/topic.asp?

Four months ago I began a series of brainstorms which have lead to my very own Fractal Foam Model of Universes. I offer some radical changes to the Fatio/LeSage model, but it is my main inspiration. I have posted a description of my model at http://forum.physorg.com/index.php?showtopic=15240
.

Answer 11

gravity is the natural attraction between two masses. Magnetic force is an attraction due to opposite charges attracting and like charges repelling. Really no real relation.