2007-03-22 09:57:27 · 5 answers · asked by D.C. Kingston 2 in Science & Mathematics ➔ Astronomy & Space
To be reversed?
2007-03-22 09:57:56 · update #1
To be reversed?
Why.
2007-03-22 10:03:43 · update #2
Yes.
Stephen Hawking theorized that the "Arrow of Time" is the direction of time in relation to the expansion of the universe*. As the universe expands, the arrow of time continues foward and eventually, when the universe begins to contract* after reaching its entirety, it will begin to contract and the arrow of time will reverse itself as well*.
(I read this out of one of his older books, A Brief History of Time; many of his theories have changed or have been done away with altogether ; there is more updated info in the link below)
http://www.hawking.org.uk/text/public/bot.html
* theoretical and not confirmed
2007-03-22 13:31:24 · answer #1 · answered by Ammy 6 · 0⤊ 0⤋
The arrow of time will always go in one direction from the present to the future..
That is one reason a big crunch is not possible.
For the universe to contract it would need a time reference that was the opposite to the one that lead the universe to it's present state.
Time will progress in one direction until the universe goes out of existence.
2007-03-23 12:33:47 · answer #2 · answered by Billy Butthead 7 · 0⤊ 0⤋
Meaning entropy or time travel? Entropy can be defeated short term over small areas using information. Time can be manipulated with gravitational technology.
2007-03-22 17:21:44 · answer #3 · answered by Michelle C 4 · 0⤊ 0⤋
They would if you travelled faster than the speed of light, but that's impossible, so no.
2007-03-22 18:08:40 · answer #4 · answered by captflapdoodle 3 · 0⤊ 0⤋
No -- not allowed
2007-03-22 17:41:45 · answer #5 · answered by Gene 7 · 0⤊ 0⤋