please offer me an epitome of "theory of relativity"?

Question

also does string theory unify the quatum mechanics & newtanion mechanics

Answer 1

In VERY short...General Relativity states that energy and mass are directly related to each other and actually convert in form between each other.
The other basic point is the idea that space and time are exactly the same thing...and that a mass will displace the very space its in, curving the properties of space...which results in the phenomenon of gravity.
It also declares light-speed to be the "cosmic speedlimit"...nothing can go faster.
String theory is the closest thing we have to unifying QM and General Relativity....as of yet, not proven.

Answer 2

Relitivistc calculations replace newtonian mechanics, so there really isn't a way to connect quantum and newtonian mecanics as such.

The big mucky muck is that Relativity and quantum mechanics should be able to work together to provide answers to how the universe works, especially the four forces, gravity, strong nuclear, weak nuclear and electromagnatism. However, they don't predict things quite the same.

Also, We still don't know how gravity works. If we understood how relativity and quantum mecanics could work together and get the same answers, likely that would include a good theory on gravity.

Relativity explains the big and fast, and shows how everything is relative to the speed of light.

Quantum Mechanics deal with the very small and interactions between particles and such. Uncertainty, chaos, all that stuff.

String theory proposes that the smallest particle is a vibrating string of energy, and that these strings esist in about 12 dimensions and make up all the fundamental forces and matter in the universe.

As of yet, string theory does not really work well. In fact it has been replaced by another theory, M theory.

An Epitome is usually used to mean embodiment (ie, the epitome of evil), though it can mean summary. Just thought I should throw that out there too because it just doesn't seem (to me) to fit in context well.

Answer 3

I don't know quite what you're looking for, but here is an example.

At fermi national accelerator laboratory, we work with many subatomic particles that decay in a fraction of a second, even at a high speed. These particles travel at 99.9999999 (seven decimal places)% the speed of light. In this referance frame (the time frame relative to the particle), the particles are actually in existance for a lesser time than from the time frame relative to the viewers on earth. The size of the particles, along with the mass also varies as the speed of the particle increases relative to the frame of referance. All three of these need to be taken into account when the amount of energy put into the electromagnetic field used to accelerate these particles is generated. The momentum is calculated from this, and from this the inward fforce needed to accelerate the particles can be determined.

String theory is the closes unifying theory of the two, although not yet proven.

Answer 4

--Einstein began work on extending and generalizing the theory of relativity to all coordinate systems. He began by enunciating the principle of equivalence, a postulate that gravitational fields are equivalent to accelerations of the frame of reference.
-- For example, people travelling in a moving lift cannot, in principle, decide whether the force that acts on them is caused by gravitation or by a constant acceleration of the lift. The full general theory of relativity was not published until 1916.
--In this theory, the interactions of bodies, which heretofore had been ascribed to gravitational forces, are explained as the influence of bodies on the geometry of space-time (four-dimensional space, a mathematical abstraction, having the three dimensions of Euclidean space and time as the fourth dimension).

On the basis of the general theory of relativity, Einstein accounted for previously unexplained variations in the orbital motion of the planets and predicted the bending of starlight in the vicinity of a massive body such as the Sun. The confirmation of this latter phenomenon during an eclipse of the Sun in 1919 .

Answer 5

Hey pal i'll jus explain the relativity of mass n time with an example:
Ok now u consider two guyz A n B are running a 100meters race .Let us take that the person A is a fat one n the other person B is a lean one. Obviously the person B has a lot of chances to win the race since he is lean n can carry him so easily.
The point is, since person B has a low mass the time for which he has to reach the destination is less. The person A who is fat will not be able to move his mass (since it is greater) n so it takes a longer time for him to reach the destination.
Hence for an object to move to particular distance the time taken does not only depends on the velocity the body travels but also on the mass of body that has to be carried to that destination.
Hence time is relative to mass.

Answer 6

Albert Einstein's 1905 paper "On the Electrodynamics of Moving Bodies" introduced the special theory of relativity. Special relativity considers that observers in inertial reference frames, which are in uniform motion relative to one another, cannot perform any experiment to determine which one of them is "stationary". This is actually Galileo's principle of relativity; Einstein's contribution was to explicitly include electromagnetism within this principle, which required that the Galilean transformations be replaced by the Lorentz transformations. The resultant theory has many surprising consequences. In particular, it requires that the speed of light in a vacuum be the same for all these observers, regardless of their motion, or the motion of the source of the light, since the invariance of the speed of light is a consequence of Maxwell's equations of electromagnetism.

Answer 7

Einstien's theory of Special Relativity deals with how particles behave at the speed of light or near the speed of light.

He later expanded this to include how gravity affects space-time, this became the theory of General Relativity

Answer 8

Any object (such as the centre of the solar system) provides an equally suitable frame of reference, and the motion of any object can be referred to that frame. Thus, it is equally correct to say that a train moves past the station as that the station moves past the train. This example is not as unreasonable as it seems at first sight, for the station is also moving, owing to the motion of the Earth on its axis and its revolution around the Sun. All motion is relative, according to Einstein.

Answer 9

The theory of relativity has nothing to do with quantum mechanics and string theory. Relativity has to do with how you measure distance, time and speed. Quantum mechanics and string theory have to to with what matter is made of.

Answer 10

the theory of general relativity is basically about everything to be seen in its certain state of motion.
someone who observes something needs to consider the relative motion of himself and the object he observes.
this becomes highly important at speeds near the speed of light, and insignificant at speeds we are used to in our dayly life.

this is basically relativity

The only system we use in our dayly life which needs to consider relativistic effects, from what i heard, is the global positioning system, which would mislead if the satellites motion wouldn't be calculated using Einsteins theory

newtonian mechanics just works for slow moving objects.
so basically its expected that if there ever is a grand unified theory, or a 'theory of everything' einsteins relativity is a part of it in favour of newton