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 Subject: God does exist revisited. Category: Science Asked by: davetheslave-ga List Price: \$2.00 Posted: 21 Nov 2002 14:02 PST Expires: 21 Dec 2002 14:02 PST Question ID: 112139
 ```I am an observer moving at the speed of light. Time does not exist for me. What happens if I apply all the mass/energy for our entire universe to the equation e=mc2? Say you balance it perfectly so that E=M. We assume that "c" is not a constant for this thought experiment. Solve for "c". Make any other assumptions to fit this if you must. Davetheslave. Goddoesexist.```
 Subject: Re: God does exist revisited. Answered By: johnny_phoenix-ga on 22 Nov 2002 06:23 PST
 ```Hi Davetheslave, First of all, it would appear you have a great sense of humour and an uncontrollable imagination...lol. In answer to your question however.... You start by saying that "I am an observer moving at the speed of light. Time does not exist for me". We have to clear that one up from the start I am afraid. Time would exist for you regardless of the premise that you would be travelling at the speed of light. Einstein only theorised that someone travelling at the speed of light would not be "aware" of any time passing - he didn't say that time didn't pass. For example, suppose you were travelling to a planet which was for the sake of argument exactly 7 light years from earth. If you travelled there at the speed of light it would still take you seven years to get there. Ergo seven years would have passed for you, therefore time would certainly exist for you. Einsteins Special Relativity http://www2.slac.stanford.edu/vvc/theory/relativity.html Part Deux ********* For the second part of your question, you say lets assume that all the energy and mass in the universe is entered into the equation E=MC2, and let us further assume that Energy and Mass are equal values. You also wish to assume that light (a fundamental constant of the universe) is not constant. If that were the case then E=MC2 with E & M being equal could be rewritten C2(C Squared) = E/M. If E and M are Equal then; C2(C Squared) = 1 Since the only number that is equal to 1 when you multiply it by itself is 1, the speed of light would therefore have to be 1. The answer would therefore be c=1 An Interesting Thought ********************** Due to your very interesting question, it set me off thinking along a different tangent. Lets suppose for a second that you were able to defy the laws of physics and travel at the speed of light. You set off to a planet five light years away to shine a big torch. Whilst we are in the realms of fantasy, lets say you had a telescope on Earth capable of seeing that far away, since the light would take five years to get to the telescope, If you had set off to go to this planet it would take you five years to get there. It would then take a further five years for the light of the torch to reach earth. If you had set off, after flashing the torch and travelled back at the speed of light, theoretically you would be able to see yourself flashing the torch through the telescope five years ago. This would create the illusion that you were in two places at once. I hope this helps.....somehow. Johnny Phoenix```
 Subject: Re: God does exist revisited. From: justaskscott-ga on 21 Nov 2002 14:05 PST
 ```Note to Researchers -- The original "God does exist" question is found at: https://answers.google.com/answers/main?cmd=threadview&id=109968```
 Subject: Re: God does exist revisited. From: crofter-ga on 22 Nov 2002 04:49 PST
 `c= 20+fl+oz+5%+spec/grav`
 Subject: Re: God does exist revisited. From: bowler-ga on 23 Nov 2002 12:55 PST
 ```Homer Simpson proved god doesn't exist through a mathematical equation during the episode in which there is a crayon lodged in Homer's brain.```
 Subject: Re: God does exist revisited. From: pausanias-ga on 26 Nov 2002 16:10 PST
 ```Johnny Phoenix's answer is incorrect. It takes 7 years from the point of view of someone on the planet you are travelling to. From the point of view of a near-light-speed traveller, it takes a much smaller amount of time. The amount of time it takes is 7 sqrt(1-v^2/c^2) years, where v is the velocity the traveller has with respect to his destination, and c is the speed of light.```
 Subject: Re: God does exist revisited. From: johnny_phoenix-ga on 27 Nov 2002 06:38 PST
 ```Pausanias, thanks for the comment but as you say in your comment you are discussing someone travelling at NEAR light speed, whilst the question master asked about AT light speed. It amuses me no end when people try overcomplicating simple things. Q: Why is a light year called a light year? A: Because it is the distance light travels in one year. Q: So if something is seven light years away, how long will it take light to get there? A: ermmmmmm...seven years. Q: What would happen if someone did the same distance in six years A: They would be travelling faster than the speed of light Q: What would happen if someone did the same distance in eight years A: Well by crikey, they'd be travelling slower than the speed of light. Therefore, my answer is correct. "the point of view" of the traveller is immaterial in the context of the question. Cheers anyhow pausanias lol.```
 Subject: Re: God does exist revisited. From: lillo-ga on 18 Dec 2002 08:59 PST
 ```I'm sorry Johnny, but pausanias-ga is right, as his formula suggest, the time is subject to a dilation. It means that, inside the ship, the speed seems to be infinite. But it's a question of point of view, an observer, traveling at another speed, would see that person completely immobile. So, time spend for the traveler to reach the 7 Ly planet : 0 sec...```