The twin brothers paradox is a favourite cocktail topic, when talking about time travel. The paradox is stated roughly like this.
There are twin brothers on earth, and one of them takes a flight in a rocket and travels close to the speed of light while the other one stays on earth. After 10 earth-years, when the travelling twin returns to earth, he will be much younger (physically) compared to his twin brother, who has aged 10 earth-years. The earth-years mentioned here is similar to years, but for the sake of correctness, it is termed as earth years.
Most of the explainations for this paradox of twin brothers on internet (including wikipedia) are decently complex for some not scieitific person, who just want to be amused. For thos amusing people, here is an alternate explaination.
Forget about time travel, and twin brothers for a moment (ding dong!!). Lets talk about something else...like
1. Nothing in this universe (or any other universe) can travel faster than light.
2. Nothing in this universe (or any other universe) can travel faster than light.
3. I just repeated the previous sentence, just to emphasize my point.
4. Even *TIME* cannot travel faster than light.
5. Therefore, TIME has a speed.
As a human being, when we move from Spain to Beijing, we are travelling in space. Since it takes us 16 hours to travel from Spain to Beijing, we are also travelling in TIME. We are doing a space-time travel. Everyone on this earth is travelling in time, and with the same speed. Right?
If there is a machine, that can be used to accelerate the velocity of time (as perceived one earth), One can travel 5 earth-days in 2 earth-days only. You got the point.
Once again, nothing can travel faster than light, even time cannot travel faster than light. Time as seen on earth has a finite speed. Therefore, a machine can travel faster than time and does time travel.
This can explain, time travel into future, how do I explain time travel into past? Slow down my Time-Car?
There are twin brothers on earth, and one of them takes a flight in a rocket and travels close to the speed of light while the other one stays on earth. After 10 earth-years, when the travelling twin returns to earth, he will be much younger (physically) compared to his twin brother, who has aged 10 earth-years. The earth-years mentioned here is similar to years, but for the sake of correctness, it is termed as earth years.
Most of the explainations for this paradox of twin brothers on internet (including wikipedia) are decently complex for some not scieitific person, who just want to be amused. For thos amusing people, here is an alternate explaination.
Forget about time travel, and twin brothers for a moment (ding dong!!). Lets talk about something else...like
1. Nothing in this universe (or any other universe) can travel faster than light.
2. Nothing in this universe (or any other universe) can travel faster than light.
3. I just repeated the previous sentence, just to emphasize my point.
4. Even *TIME* cannot travel faster than light.
5. Therefore, TIME has a speed.
As a human being, when we move from Spain to Beijing, we are travelling in space. Since it takes us 16 hours to travel from Spain to Beijing, we are also travelling in TIME. We are doing a space-time travel. Everyone on this earth is travelling in time, and with the same speed. Right?
If there is a machine, that can be used to accelerate the velocity of time (as perceived one earth), One can travel 5 earth-days in 2 earth-days only. You got the point.
Once again, nothing can travel faster than light, even time cannot travel faster than light. Time as seen on earth has a finite speed. Therefore, a machine can travel faster than time and does time travel.
This can explain, time travel into future, how do I explain time travel into past? Slow down my Time-Car?
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