At first it is better to say I am not that good at Physics. So, my opinion might be flawed. But I believe in Time Travel. As the rule of Einstein's special theory of relativity if any reference frame goes with the approximate of light velocity, then length, mass and even fourth dimension time is variable with the respect to a observer who is on that reference frame. In my opinion a person's feelings of time makes him older. In that case time feelings of a person who is on the reference frame, going with approximate of light velocity will more less than those observers who are on the reference frame with normal velocity. As a result that obsever( c ) can be able to bypass the time quickly and will be able to go to the future. But Alas! If any one goes with the light speed he will transform into light energy that means he will die. For going to the future maybe we have invented to a compound element which will not fully and quickly transform into light energy at the time of going with light speed and may be we can build a spaceship by this compound element and that space ship may be take us to the future. In this process may be we can go to the future. But could anybody tell me is it possible to go to the past?


Stranger780 Ha! Ha! Be prepared for any adventure!

I'm not sure. If it were possible, people would already have come here. Unless the future people thinks that this time period is very bad and decides to go to the lesser past.

i recommend " a brief history of time" by Hawking .

Oh and Welcome to the UM .. I'm sure you'll enjoy our topics !

ur description of time dilation has a basic flaw. ...
"As a result that obsever( c ) can be able to bypass the time quickly and will be able to go to the future."
this is not strictly true. ur traveller does not go into the future per se, its just that time passes more slowly for her than for the ppl in a different frame of reference. The key word in GR is "relativity" . as u go faster, or more correctly, as u accelerate, time slows and mass increases relative to another frame of reference.... to keep the laws of physics balanced. so ur traveller does not go into the future, she just ages slower than normal because time is going slower....

achieving the speed of light would require infinite acceleration from infinite energy, resulting in infinite mass..... which is of course impossible, isn't it ?

u would have to get around the speed part by adjusting another dimension of the GR theory. speed doesn't cut it..

Min xx