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GeneralRe: I stole a funny Pin
JimmyRopes6-May-14 17:14
professionalJimmyRopes6-May-14 17:14 
GeneralRe: I stole a funny PinPopular
Johnny J.6-May-14 4:13
professionalJohnny J.6-May-14 4:13 
JokeRe: I stole a funny Pin
Nueman6-May-14 5:16
Nueman6-May-14 5:16 
GeneralRe: I stole a funny Pin
Dan Neely6-May-14 7:27
Dan Neely6-May-14 7:27 
GeneralRe: I stole a funny PinPopular
Ravi Bhavnani6-May-14 9:03
professionalRavi Bhavnani6-May-14 9:03 
GeneralRe: I stole a funny PinPopular
Mohamad M. Mohamad6-May-14 4:23
Mohamad M. Mohamad6-May-14 4:23 
GeneralRe: I stole a funny Pin
Dalek Dave6-May-14 4:33
professionalDalek Dave6-May-14 4:33 
GeneralRe: I stole a funny Pin
OriginalGriff6-May-14 4:34
mveOriginalGriff6-May-14 4:34 
Mohamad M. Mohamad wrote:
Time travel is impossible

Prove it.

Even Hawking doesn't say that:
"The first indication that the laws of physics might really allow people to travel in time came in 1949 when Kurt Godel discovered a new space-time allowed by general relativity. Godel was a mathematician who was famous for proving that it is impossible to prove all true statements, even if you limit yourself to trying to prove all the true statements in a subject as apparently cut and dried as arithmetic. Like the uncertainty principle, Godel’s incompleteness theorem may be a fundamental limitation on our ability to understand and predict the universe, but so far at least it hasn’t seemed to be an obstacle in our search for a complete unified theory.

Godel got to know about general relativity when he and Einstein spent their later years at the Institute for Advanced Study in Princeton. His space-time had the curious property that the whole universe was rotating. One might ask: “Rotating with respect to what?” The answer is that distant matter would be rotating with respect to directions that little tops or gyroscopes point in.

This had the side effect that it would be possible for someone to go off in a rocket ship and return to earth before he set out. This property really upset Einstein, who had thought that general relativity wouldn’t allow time travel."

Stephen Hawking, A Brief History of Time
He has a whole chapter about time travel, wormholes and such like.
Those who fail to learn history are doomed to repeat it. --- George Santayana (December 16, 1863 – September 26, 1952)
Those who fail to clear history are doomed to explain it. --- OriginalGriff (February 24, 1959 – ∞)

GeneralRe: I stole a funny Pin
Simon Lee Shugar6-May-14 4:34
Simon Lee Shugar6-May-14 4:34 
GeneralRe: I stole a funny Pin
chriselst6-May-14 4:36
professionalchriselst6-May-14 4:36 
GeneralRe: I stole a funny Pin
phil.o6-May-14 5:00
professionalphil.o6-May-14 5:00 
GeneralRe: I stole a funny Pin
Dan Neely6-May-14 7:31
Dan Neely6-May-14 7:31 
GeneralRe: I stole a funny Pin
phil.o6-May-14 12:19
professionalphil.o6-May-14 12:19 
GeneralRe: I stole a funny Pin
phil.o6-May-14 12:21
professionalphil.o6-May-14 12:21 
GeneralRe: I stole a funny Pin
Eric Goedhart6-May-14 5:04
professionalEric Goedhart6-May-14 5:04 
GeneralRe: I stole a funny Pin
OriginalGriff6-May-14 5:35
mveOriginalGriff6-May-14 5:35 
GeneralRe: I stole a funny Pin
User 84206-May-14 7:57
User 84206-May-14 7:57 
GeneralRe: I stole a funny Pin
Super Lloyd6-May-14 5:51
Super Lloyd6-May-14 5:51 
GeneralRe: I stole a funny Pin
Ravi Bhavnani6-May-14 9:05
professionalRavi Bhavnani6-May-14 9:05 
GeneralRe: I stole a funny Pin
Richard MacCutchan6-May-14 6:05
mveRichard MacCutchan6-May-14 6:05 
JokeRe: I stole a funny Pin
Johnny J.6-May-14 21:43
professionalJohnny J.6-May-14 21:43 
GeneralRe: I stole a funny Pin
chriselst7-May-14 1:55
professionalchriselst7-May-14 1:55 
GeneralRe: I stole a funny Pin
P0mpeyBoy7-May-14 1:15
P0mpeyBoy7-May-14 1:15 
RantWhy CPs forum web design sucks today (and every time my work internet connection is laggy)... Pin
Dan Neely6-May-14 3:02
Dan Neely6-May-14 3:02 
GeneralRe: Why CPs forum web design sucks today (and every time my work internet connection is laggy)... Pin
chriselst6-May-14 3:06
professionalchriselst6-May-14 3:06 

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