20101107, 23:02  #1 
"Forget I exist"
Jul 2009
Dumbassville
2^{6}·131 Posts 
basics of relativity
hi I've been talking to a few people to try to learn basics of relativity
http://en.wikipedia.org/wiki/General_relativity http://www.4p8.com/eric.brasseur/erta.html which is correct i can't see one that's the same even. even the special relativity wikipedia doesn't agree I think Last fiddled with by science_man_88 on 20101107 at 23:13 
20101108, 01:13  #2 
"Forget I exist"
Jul 2009
Dumbassville
2^{6}·131 Posts 
guessing nobody cares ?

20101108, 01:21  #3 
Aug 2006
3×1,993 Posts 
I, for one, don't understand what you're asking.

20101108, 10:23  #4 
Bamboozled!
"πΊππ·π·π"
May 2003
Down not across
2^{4}·13·53 Posts 

20101108, 11:28  #5 
"Lucan"
Dec 2006
England
2×3×13×83 Posts 
Me neither.
But one thing that Einstein/relativity did was to clarify our thinking about geometry, time, kinematics and classical mechanics. David PS Pity Riemann died so young. Last fiddled with by davieddy on 20101108 at 11:29 
20101108, 12:36  #6 
"Forget I exist"
Jul 2009
Dumbassville
20300_{8} Posts 

20101108, 14:06  #7 
Nov 2003
2^{2}·5·373 Posts 
He is on my ignore list, so I won't even try to guess what he asked.
I will off him some advice, however: Don't Bother. You lack the math background. You have no hope of learning relativity with your present knowledge of mathematics. To illustrate my point, I will ask two simple questions. Do you know the difference between an affine linear transform and a projective linear transform? Do you know what a positive definite matrix is and can you explain why, from a geometric point of view, it is different from matrices that are NOT positive definite? If you can't answer these two questions without looking up the answers than you are not even ready to begin studying the necessary math to understand relativity (esp. General Relativity; one needs to understand tensors and differential geometry) 
20101108, 14:27  #8  
"Lucan"
Dec 2006
England
1100101001010_{2} Posts 
Quote:
takes the biscuit David 

20101108, 14:32  #9 
"Forget I exist"
Jul 2009
Dumbassville
2^{6}·131 Posts 
fine don't teach me I was trying to ask which is accurate as as far as i can tell they both can't be.

20101108, 14:41  #10  
Bamboozled!
"πΊππ·π·π"
May 2003
Down not across
10101100010000_{2} Posts 
Quote:
TBH, I can't be bothered chasing off to two different web sites to answer an illformed question from someone who doesn't even have the basic courtesy of presenting the material found to be confusing. Post the equations and enough context and I may be able to help. Paul 

20101108, 14:47  #11  
"Lucan"
Dec 2006
England
2×3×13×83 Posts 
Quote:
BTW are you aware that simultanaity is not an absolute feature of events in different places? David PS the CAPS or SHIFT key is on the left. 

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