Time is the one thing in the entire universe that never stops for anyone. People who use their time well become very successful and those who waste it waste their lives. In addition, you find the dominance of time throughout the universe as well as the Earth.
Expansion of time which is called time dilation in another name. Time dilation is a phenomenon in which time is passing slowly for an observer or observer, while time is moving forward with respect to another observer. The difference of two clocks in spacetime is called time dilation.
For anything that moves at the speed of light, time stops. This means that whenever you travel through space at the speed of light for four years, Earthlings' four years will have passed and yours only a few hours. When you come back to earth, your friend will be four years older than you and that's called time dilation.
Albert Einstein's theory of relativity states that time is relative, it can be slow or fast, the faster we travel through space, the slower time will move for us.
If we compare the Earth's clock with the clock of a spacecraft traveling at 99.99% of the speed of light, it is found that the clock of a spacecraft moving in space is moving very slowly and it is not possible that any human being can travel at the speed of light at the present time.
If a human spends about two years in space in a spaceship, when he returns to Earth, 100 years will have passed on Earth, and only two years for himself. That is, the people he left behind on earth will no longer be in this world. And now he may be looking at the third or fourth generation. This entire phenomenon is caused by time dilation.
.jpg "Time Dilation in Space")
Nothing in the universe is permanent and the definition of time is different for different organisms in the world. A fly's time is faster than our speed, so an hour spent by a human feels like a year.
Because the life span of a fly is only a few days due to the rapid movement, the flies will feel that time is moving very slowly. As for turtles, their movements are much slower than humans, so they live for 200 to 300 years. Thus, their lifespan depends on the intrinsic physiological and neurological movements of all living beings.
Before Albert Einstein's theory of relativity, scientists believed that space and time lived independently in their own way. It means that any change in the universe does not affect time and neither does the change in time affect the universe.
According to Sir Isaac Newton, time remains the same everywhere and for all people. That means if 3 hours have passed for me, then only 3 hours have passed for everyone in this universe. Whether that person is on Earth, on the Sun, near a black hole or in a spaceship traveling at the speed of light.
But after the publication of Albert Einstein's theory of relativity, this assumption was proved to be completely wrong.
Albert Einstein believed that time is not the same for all places and people. Instead time passes at different speeds in different situations. Actually the passage of time or the speed of time depends on the gravitational field and the velocity of that object. As the gravitational field and the object's velocity increase, time begins to pass slowly.
If both space and time are mixed together, they are divided into four dimensions to form space-time. Space and time do not exist without each other.
As an example, if you ask your friend to meet you, you have to tell him both the time and the place. If you tell your friend one of these things, it will be difficult for your friend to find you. So this means that space-time is interconnected.
A lot of research is being done on this today because scientists believe that if they get time dilation right, they might be able to stop humans from aging and make time travel possible.
@ Bhautik Thummar
