- #1
Saerryan89
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I was discussing with a friend about speed of light and time traveling and I realized something bizarre. I could be wrong so please correct my mistakes.
So let's assume we want to go to our alien neighbour whose planet is 100 light years away. When we travel there with near light-speed, we should be going forward in time too. Which means if we travel, let's say, 120 years, 150 years could have been passed in the world and in our neighbours planet. This is a problem if we want to arrive there as soon as possible relative to them. I did some calculations and;
let's say we are going at;
0,6 c which means we would arrive to our destination in 166,67 years (for traveler). But on the outside it would be ~208,33 years which means we traveled ~41,66 years forward in time.
0,8 c which means we would arrive to our destination in 125 years (for traveler of course). But on the outside it would be ~208,33 years (wow same as 0,6 c) which means we traveled ~83,33 years forward in time.
0,99 c which means we would arrive to our destination in ~101,01 years(again, for traveler). But on the outside it would be ~5075,879 years! It is because we are so close to speed of light it literally fast-forwards the universe!
So by going faster we actually arrived almost 5000 years late! But if you travel at more reasonable speeds(0,8 c) we can travel 100 light years in 125 years while the universe around us age more than 200 years which is still reasonable(a lot more than 0,99 c at least)
Here are my calculations -> http://www.mediafire.com/view/1tq82330kffsby3/IMG_0471.jpg
So let's assume we want to go to our alien neighbour whose planet is 100 light years away. When we travel there with near light-speed, we should be going forward in time too. Which means if we travel, let's say, 120 years, 150 years could have been passed in the world and in our neighbours planet. This is a problem if we want to arrive there as soon as possible relative to them. I did some calculations and;
let's say we are going at;
0,6 c which means we would arrive to our destination in 166,67 years (for traveler). But on the outside it would be ~208,33 years which means we traveled ~41,66 years forward in time.
0,8 c which means we would arrive to our destination in 125 years (for traveler of course). But on the outside it would be ~208,33 years (wow same as 0,6 c) which means we traveled ~83,33 years forward in time.
0,99 c which means we would arrive to our destination in ~101,01 years(again, for traveler). But on the outside it would be ~5075,879 years! It is because we are so close to speed of light it literally fast-forwards the universe!
So by going faster we actually arrived almost 5000 years late! But if you travel at more reasonable speeds(0,8 c) we can travel 100 light years in 125 years while the universe around us age more than 200 years which is still reasonable(a lot more than 0,99 c at least)
Here are my calculations -> http://www.mediafire.com/view/1tq82330kffsby3/IMG_0471.jpg