what does theory of relativity want to say?

Question

man can go to the future or to the past using theory of relativity.

Answer 1

The theory basically proposes that even time is relative and not absolute. What does this mean? Previously ( before Einstein came into the picture ), the best physical model of the universe was Newtonian Physics ( The Physics invented by Sir Isaac Newton ).

Here, time is considered absolute (Newtonian) . One implication of this is that once time has passed it cannot be retraced.

Einstein came with remarkable theory that everything? is relative, and thus can be retraced. For example, if you can travel in the speed of light, you may be able to catch up with time as it emanates through space... its just a ''possibility''... nobody has proven it yet. One reason why this ''logic'' may be substntiated is by how our powerful telescopes ( e.g, hubble ) captures amazing pictures , say of some stars, a couple of million years ago. This light carrying the image of that star has reached us today after travelling millions of years throuh the void of space. So actually we are seeing TODAY an image of something that has occured million years ago,!

Relativity theory generally speculates that everything is just measured relative to one another. Example , if you standing still and watch a car speed by in 40 miles/hour, the relative speed of the car is 40 miles per hour, ( relative to you ). If the same car with same speed was beside another car who is travelling in the same direction with speed 30 miles/hour, than from this car (2nd one ), the initial car is just moving at a relative speed of 40 - 30 = 10 miles per hour. That is, the relative speed of the initial car is 10 miles/hour with respect to the 2nd one.

Nobody has yet found a way to travel in time yet...

I dont think it will happen.

Hope this helped you.

Kind Regards,

J

Answer 2

The theory of relativity, or simply relativity, refers specifically to two theories: Albert Einstein's special relativity and general relativity.

The term "relativity" was coined by Max Planck in 1908 to emphasize how special relativity (and later, general relativity) uses the principle of relativity.General relativity was developed by Einstein in the years 1907 - 1915. General relativity replaces the global Lorentz symmetry of special relativity with a local Lorentz symmetry in the presence of matter. The presence of matter "curves" spacetime, and this curvature affects the path of free particles (and even the path of light). General relativity uses the mathematics of differential geometry and tensors in order to describe gravitation as an effect of the geometry of spacetime. This theory is based on the general principle of relativity, which requires all observers to experience the same laws of physics, not just those moving with uniform speed, hence its name.

Answer 3

the theory of relativity was proposed by Albert Einstien.
E=MCsq.
that is the energy produced by a nuclear rection is the product of mass of the atom and square of the speed of light

Answer 4

Nope for time travel you really need a time machine.
My friend Napoleon Dynamite tried one and it didn't work,
I think you have to be really choosey in order to get the right
one. Best bet is to check consumer reports special edition
on time travel. It's out of print now, but you may be able to
find it at the library.

Answer 5

It means that depending on the speed that you are moving at Time will travel faster or slower accordingly. So if I go 900, thousands miles faster than you my hour would pass like your year. (# not real, only example)

Answer 6

Generally, everything depends on, or is relative to, speed!

Answer 7

No time travel, sorry. It just says that the laws of hysics hold no matter what kind of motion you experience.

Answer 8

that ain't right

here, try this link
http://en.wikipedia.org/wiki/relativity