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Dec 29 2013 05:11pm
Quote (Azrad @ 24 Dec 2013 17:48)
That is what the equations seem to imply if you push them to the limit. Of course, the equations also tell you that you will need an infinite amount of energy to accelerate to a velocity faster than light, which seems to be a big problem. They also tell you that while you are traveling faster than light, you will experience things in opposite order (events will appear to happen backwards). But you are right in that faster than light travel, and time travel are intimately related (or at least appear to be).


This.

If I remember correctly, even accelerating to the speed of light requires an infinite amount of energy, no need to go past it as far as this problem is concern.



Quote (Tx6 @ 28 Dec 2013 04:29)
from pure speculative point of view, yes, you can see what happened in the past. Like watching an old picture/movie, but that's about it.
and for it to happen, you will need to stop, or be traveling slower then the speed of light.
Cant see something if the light cant hit your eyes/camera (facing the Earth while traveling faster then light)
None of that backwards experience / living in the past thing is possible.


just my 2 cents from my drunken head, lol
p.s. and to check what year you will be looking at compared to your start one:
('your speed'/ 'speed of light') x 'time traveled' - 'time traveled'
100x times faster for 10 'birthdays' will let you take a peak right before the crusades, lol


And I would agree with that too.

Someone might correct this, but I dont see how light would even reach your eyes if you were going faster than it.

Quote (joncomgree @ 29 Dec 2013 17:49)
yea from what i understand its not possible to see the past.

I dont understand what people mean about gravity stretching time.

time is a neverending constant, it cannot be controlled, manipulated, or messed with. Only measured.


I agree on the controlled/manipulated part, but time is not a constant.

Time and space are dynamics and can dilate/contract.

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Dec 29 2013 08:05pm
Quote (joncomgree @ Dec 29 2013 03:49pm)
yea from what i understand its not possible to see the past.

I dont understand what people mean about gravity stretching time.

time is a neverending constant, it cannot be controlled, manipulated, or messed with. Only measured.


you are not up to speed on astronomy 101
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Dec 29 2013 11:44pm
if you want to see why the equations say stuff happens backwards at faster than light velocity:
http://forums.d2jsp.org/topic.php?t=66319192&f=90&p=445035391
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Dec 30 2013 01:10pm
Quote (Azrad @ Dec 30 2013 05:44am)
if you want to see why the equations say stuff happens backwards at faster than light velocity:
http://forums.d2jsp.org/topic.php?t=66319192&f=90&p=445035391


would be a interesting field to study
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Dec 30 2013 02:29pm
Quote (joncomgree @ Dec 29 2013 03:49pm)
yea from what i understand its not possible to see the past.

I dont understand what people mean about gravity stretching time.

time is a neverending constant, it cannot be controlled, manipulated, or messed with. Only measured.


Gravity affects time similar to how speed does. Very strong gravity fields result in similar effects as going close to the speed of light.

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Dec 30 2013 04:29pm
Thanks for every ones input, this question has been nagging at me for sometime now. It is nice to hear others thoughts!
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Dec 30 2013 09:53pm
Quote (Azrad @ 30 Dec 2013 01:44)
if you want to see why the equations say stuff happens backwards at faster than light velocity:
http://forums.d2jsp.org/topic.php?t=66319192&f=90&p=445035391


I've had few physics classes, but not many and only one was on relativity. From my understanding though, you cant go faster than light. You just cant.

The equations dont say anything about what would happen if it was possible, cause its not.

Assuming that exceeding that speed would reverse time is ignoring the ground on which physicists have to play.

Lmk if I am totally wrong, as I said I dont know much about physics, let alone relativity.
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Dec 30 2013 10:03pm
Quote (Boblacolle @ Dec 30 2013 08:53pm)
The equations dont say anything about what would happen if it was possible, cause its not.
Assuming that exceeding that speed would reverse time is ignoring the ground on which physicists have to play.
The equations do say what will happen. However, mathematics does not care about real world limitations. I stressed that those conclusions comes from pushing the mathematical model WAY past any regime in which it is likely valid. This is probably why it gives crazy results in those regimes (things happening backwards). It should be no suprise that when you push an equation past real world limitations you start to get crazy results.


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Dec 30 2013 10:54pm
Momma says time travels the devil
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Dec 31 2013 11:03am
i time travel everyday B)

forward that is ;)

This post was edited by GarryGarry on Dec 31 2013 11:04am
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