Explain me the twin theory.?

Answer 1

If you are talking about the twin paradox, it is when one person travels at extremely high speeds, i.e. close to the speed of light, and his/her twin stays on earth.

The faster the space twin travels, the slower time will move for him/her. So say he is gone 3 years according to his clock, when he returns, his twin brothers clock will say that he's been gone much longer, depending on how fast he was going, could be nanoseconds, could be years.

Gamma is the formula you use to determine time dialation. If you need more info on it I would be glad to help more.

Answer 2

Expanding on the first answer, the paradox to the situation is that according to special relativity, the time dilation effects are seen by both twins. That is, while the twin back on earth sees the travelers clock running slower, the twin on the ship sees the earth clock running slower. All frames of constant velocity are equivalent in special relativity. So the big question is, why does the traveler age less than the twin on earth?

The answer is that the traveler experiences periods of non-constant velocity, accelerating to speed away, then turning around and coming back. During these periods, both twins agree the ships clock runs slower than the clocks back on earth. This is an affect predicted for accelerating reference frames and gravitational fields by general relativity.

Answer 3

“Twin paradox” and “ twins brothers”.
Einstein's Special Relativity Theory / Twin paradox
(time travel ) does not have any relation to a astronaut.
Special Relativity Theory only examines the behaviour
of a quantum of light / electron.
Twin Paradox (time travel ) has relation only to
a light quantum / electron.
SRT/ Twin Paradox has grown from Maxwell's theory.
And only an electron/ quantum of light is a main
and single hero in the Maxwell's theory and SRT.
===========
Only the speed of a light quantum has
a absolute quantity of c=1.
No other particle can travel with the speed c = 1.
And I was taught at school from the first class:
that the incommensurable quantities cannot be compared.
To connect incommensurable quantities it
is similar to the decision of a problem:
“What will be if the whale will attacks the elephant?”
And all millions of books and clauses about " twins brothers"
are imagination and abstraction.
This effect is connected only with electron/ quantum of light.

Answer 4

The previous subsection illustrates a curious feature of Special Relativity that, at first glance seems paradoxical. We argued that astronauts could travel to a star four light years from Earth and only age two months if they traveled at 0.999c. Meanwhile the people back on Earth age the full eight years. This seems to contradict one of the basic postulates of Special Relativity, namely the relativity of uniform motion. After all, time dilation should be symmetrical, so how is it that the astronauts age less during the journey instead of the people on Earth. In fact the prediction that the astronauts age less is the correct one. It has been experimentally verified, on a smaller scale, but putting very accurate atomic clocks in orbit around the Earth, and comparing them to their Earthbound counterparts after the journey. The clocks that went into orbit were slower in accordance with the predictions of Special Relativity.

This dilemma highlights a limitation of the Special Theory of Relativity that we have already alluded to. It only applies to observers in uniform motion, and not to accelerated frames. In order for astronauts to go to a distance star, and return to compare clocks with Earthbound observers, the astronauts' spaceship must accelerate to near light speeds, decelerate once the reach the star, and the repeat the process in the other direction. While they are accelerating, the rules of Special Relativity don't apply, and the symmetry between the astronauts and the Earthbound observers breaks down. (This applies to the atomic clocks in orbit as well.) A detailed examination of the problem therefore requires us to go beyond Special Relativity (to General Relativity), with the result that time actually slows down in accelerated frames of reference. However, it turns out that the calculation we did in the previous sub-section is approximately correct. We get nearly the right answer for the difference in aging of the astronauts by ignoring the acceleration and just taking into account time dilation on the forward and return journeys. Thus, there is no ``paradox'' associated with this effect. As with most paradoxes, it merely points to a limitation of the theory under consideration. I hope u understood. Enjoy!