- #1
hadeka
- 32
- 0
Hi all,
i know that this has been mentioned in a lot of threads here.
But I am a beginner in the physics and specifically in the relativity, and I am very very interest in the relativity and specifically time travel.
I read a lot of threads here that talked about the same topic, but i didnt get what it means very well, so, I am asking you to tell me a clear explanation for a beginner to help understand it well please
I would like to know,
If i traveled faster than the speed of light, is this will lead me to travel backward or forward in time?? and how?? and why ??
I read about the twin paradox, i really don't know if i understood it well or no, but i will say here what i understood.
That, if i traveled faster than the speed of light for, say, a day, 24 hours hour=60 mins., min=60 secs.
This day will be equal to, say, 10 days on eath, so if i landed on earth, i will be in the future, because i stayed 10 days in a day.
I tried to think about and calculated it.
The light from our sun to the Earth takes 8 minutes to reach the Earth and as we all know that the speed of light is 300,000 KM/Sec.
So i was thinking that if i traveled faster than the speed of light by two times (600,000 KM/Sec.) and from a distance equal to the distance from Earth to sun, so i will take it in 4 mins. (the half time that sun light takes to reach earth).
So, let say, The sun light began to travel at 9:52 (according to Earth time) and reached Earth at 10:00 (earth time).
And me will begin at the same time 9:52 and reach Earth at 9:56.
So, here, i reached the Earth in a past event, not a future, because i arrived before the light itself.
So, i would like to know where is the truth? am i think right or wrong?
So, all i want to know here, is, how can we make the day in a spaceship traveling at a high speed equal to, say, 10 days on the earth?
I hope you can get what i mean.
Please, make it very very clear as long as you can because as i said, I am a beginner.
I have another question which is:
I read that, speed of light is constant to all observers. ... How ?!
I think that means, that even if i was moving at the half of speed of light, it will still 300,000 KM/Sec. according to me!
So what is that??
Thank you.
Hadeka.
i know that this has been mentioned in a lot of threads here.
But I am a beginner in the physics and specifically in the relativity, and I am very very interest in the relativity and specifically time travel.
I read a lot of threads here that talked about the same topic, but i didnt get what it means very well, so, I am asking you to tell me a clear explanation for a beginner to help understand it well please
I would like to know,
If i traveled faster than the speed of light, is this will lead me to travel backward or forward in time?? and how?? and why ??
I read about the twin paradox, i really don't know if i understood it well or no, but i will say here what i understood.
That, if i traveled faster than the speed of light for, say, a day, 24 hours hour=60 mins., min=60 secs.
This day will be equal to, say, 10 days on eath, so if i landed on earth, i will be in the future, because i stayed 10 days in a day.
I tried to think about and calculated it.
The light from our sun to the Earth takes 8 minutes to reach the Earth and as we all know that the speed of light is 300,000 KM/Sec.
So i was thinking that if i traveled faster than the speed of light by two times (600,000 KM/Sec.) and from a distance equal to the distance from Earth to sun, so i will take it in 4 mins. (the half time that sun light takes to reach earth).
So, let say, The sun light began to travel at 9:52 (according to Earth time) and reached Earth at 10:00 (earth time).
And me will begin at the same time 9:52 and reach Earth at 9:56.
So, here, i reached the Earth in a past event, not a future, because i arrived before the light itself.
So, i would like to know where is the truth? am i think right or wrong?
So, all i want to know here, is, how can we make the day in a spaceship traveling at a high speed equal to, say, 10 days on the earth?
I hope you can get what i mean.
Please, make it very very clear as long as you can because as i said, I am a beginner.
I have another question which is:
I read that, speed of light is constant to all observers. ... How ?!
I think that means, that even if i was moving at the half of speed of light, it will still 300,000 KM/Sec. according to me!
So what is that??
Thank you.
Hadeka.