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# How Time is not same for the Two Observers according to Albert Einstein ?

i never get it
please explain me in most simple manner

1. I don’t know what you are talking about, but maybe this will help:
A black hole’s gravity is so strong, it actually distorts time and space. This means the gravity is sucking in time, as it would a person or a baseball. This also means that time is something real. It is a “substance” or a “fabric” of some sort. That’s why, theoretically if you could jump into a black hole and watch the world behind you, you would see thousands of years go by in what seems like a second because time is going away from them and toward you. But if you threw a baseball into the black hole, you could watch it slowly fall into the hole for thousands of years. Something like that.

2. if you stood on earth and watched a spaceship going away from you, your perception of it’s movements would be entirely different to that of an observer on say the moon watching it approached them, then go away from them, this would be a totally different view to say someone on the rockets destination of mars as they watched it’s approach, three people all encountered different observations, yet in reality the speed and direction of the rocket has remained unchanged!!! the Doppler effect can assist understanding this concept.

3. it is because there is distance between them and time changes over distance, given the observers are moving. for example, you set two watches 1 meter apart. from each watches perspective they have the same time but for one watch to tell the other what time it is for instance if you tried to tell your friend the exact time, you cant because its changed time as you say it.

4. when an object begins to move it passes through the first three spatial dimensions and as a result moves less so through time dimension. the faster you go the greater this effect.
if you are on a rocket ship travelling 80% the speed of light and you watch a clock and see 5 seconds pass it seems normal. however to someone standing still on a nearby moon watching you go past counts the same 5 seconds he will finish counting well before the man moving in the spaceship.
the exact equation is:
Tm = Ts * sqrt(1 – v^2/c^2)
Tm is the time elapsed of the moving body, Ts is the time elapsed of the stationary observer, v is the velocity of the moving body and c is the speed of light.
therefore travelling at 80% light speed would result in the moving body observing time at about half the rate of the observer.

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