

Subject:
Show me Axioms of Theory of Relativity
Category: Science > Physics Asked by: lindsaylohanga List Price: $10.00 
Posted:
09 Sep 2004 23:22 PDT
Expires: 09 Oct 2004 23:22 PDT Question ID: 399232 
Can you tell me 2 (or 3 or any) axioms of "Theory of Relativity" (Einstein)? I'm just a teen boy want to write a short topic about that Theory for my teacher. Please give me some link! 

Subject:
Re: Show me Axioms of Theory of Relativity
Answered By: tillga on 10 Sep 2004 03:01 PDT Rated: 
I found some very interesting ones for you: You will find a descriptive summary of Einsteinīs Theory without any mathematical formulas here. Thatīs what one might call "Physics for poets" "Theory of relativity in 15 minutes" ( http://www.btinternet.com/~j.doyle/SR/sr2.htm ) Another nice summary using some formulas: "DERIVATION OF THE SPECIAL THEORY OF RELATIVITY " ( http://www.tardyon.de/space.htm ) A third one, explaining the therory in rather simple words: "The Historical and Conceptual Background of the Special Theory of Relativity" ( http://www.geocities.com/newmodel2k/Introduction.htm ) I hope these links will be helpful for you. Please post a clarification request if anything should still be unclear. tillga Search strategy: ( ://www.google.de/search?sourceid=navclient&hl=de&ie=UTF8&q=%22Special+Theory+of+Relativity%22+axioms ) and ( ://www.google.de/search?sourceid=navclient&hl=de&ie=UTF8&q=%22Theory+of+Relativity%22+axioms )  
 
 
 
 
 

lindsaylohanga
rated this answer:
Simple searchs but works well! 

Subject:
Re: Show me Axioms of Theory of Relativity
From: seankubinga on 11 Sep 2004 12:28 PDT 
superman would see everybody get old, he himself would not. I heard this scenario explained in a hawking's film from the vantage point of two astronauts. One of the astronauts falls into a black hole, and quickly accelerates to its core. His friend onboard the ship, assuming he could actually see what was happening to his unfortunate coworker, would see the astronauts watch tick slower and slower and slower. And as the astronaut finally reaches the event horizon his watch would freeze to a stop. And there he would remain until his speed was reduced, or his matter annihilated. The falling astronaut would not notice any fluctuation in the ticking of his watch. He would however see in rapid succession the next few billion years fly by. So in the situation of superman, if he was infact to accelerate to the tremendous speed of light then he would never be able to reach the falling man. To clarify, superman would infact be froze in one spot, but he would be so compressed (infinitly so) that his identifiable presence would be nigh impossible to detect. If superman could throttle back his speed to a tiny tiny fraction of that of light, sure. he would save the day, and become a little 'younger' than his generation. 
Subject:
Re: Show me Axioms of Theory of Relativity
From: mathtalkga on 11 Sep 2004 20:28 PDT 
The essence of what lindsaylohanga has asked for Clarification of is known as the "Twin Paradox", and a Google search on that term will provide a number of useful resources. The first point to be made is that "special relativity" deals only with uniform motion, not acceleration (or gravity, which in the general theory of relativity is shown to be equivalent to acceleration). So we cannot properly apply special relativity to the case of "Super Man" going faster one moment than he did before. If two observers pass one another, each in uniform motion relative to the other, at something close to the speed of light, then each will perceive (if such measurement is possible) the other's heartbeat to be slower than their own (due to time dilation of special relativity). There is no question of "never reaching" the other observer here, as we stipulate that they pass one another during their mutual observations. We know both from the general theory of relativity (and the evidence of scientific experiments with clocks sent into orbit) that this time dilation is not paradoxical. The discrepancy that might be anticipated (both being "younger" than the other) never materializes because of the effects of acceleration (and gravity) on the "clock", as speeding off in one direction and turning around to return requires acceleration. A recent issue of Scientific American (Sept. 2004 special issue) discusses the need to incorporate corrections for Einstein's time dilation into GPS satellite onboard clocks. See page 55: "Because of the velocity of GPS satellites, onboard clocks run about seven microseconds slower per day than ground clocks. The weaker gravitational pull on the satellites adds another relativistic effect, making clocks run 45 microseconds faster per day. Hence, a correction factor must be calculated that effectively turns back onboard clocks by 38 microseconds per day to yield accurate GPS data." regards, mathtalkga 
Subject:
Re: Show me Axioms of Theory of Relativity
From: lindsaylohanga on 12 Sep 2004 01:13 PDT 
Thank you, seankubinga and mathtalkga! You help me see thru that! 
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