Go Back   Physics Help Forum > College/University Physics Help > Special and General Relativity

Special and General Relativity Special and General Relativity Physics Help Forum

Reply
 
LinkBack Thread Tools Display Modes
Old Jul 17th 2008, 09:42 PM   #1
Junior Member
 
Join Date: Jul 2008
Posts: 14
round trip speed of light

Please tell me what is the importance of the concept of two way (round trip) speed of light in the current use of SRT.
evabern is offline   Reply With Quote
Old Jul 25th 2008, 04:50 AM   #2
Forum Admin
 
topsquark's Avatar
 
Join Date: Apr 2008
Location: On the dance floor, baby!
Posts: 2,245
Originally Posted by evabern View Post
Please tell me what is the importance of the concept of two way (round trip) speed of light in the current use of SRT.
I had to do some searching to figure out what you likely mean here. For confirmation: you are referring to the measurement of the speed of light here, right?

-Dan
__________________
Do not meddle in the affairs of dragons for you are crunchy and taste good with ketchup.

See the forum rules here.
topsquark is offline   Reply With Quote
Old Jul 26th 2008, 08:23 PM   #3
Junior Member
 
Join Date: Jul 2008
Posts: 14
Originally Posted by topsquark View Post
I had to do some searching to figure out what you likely mean here. For confirmation: you are referring to the measurement of the speed of light here, right?

-Dan
Thank you for your answer. In between I have received from a coleague an answer to my problem
evabern is offline   Reply With Quote
Old Jul 27th 2008, 09:33 AM   #4
Forum Admin
 
topsquark's Avatar
 
Join Date: Apr 2008
Location: On the dance floor, baby!
Posts: 2,245
Originally Posted by evabern View Post
Thank you for your answer. In between I have received from a coleague an answer to my problem
Out of curiosity: what was the solution? (For that matter, what was the exact problem?)

-Dan
__________________
Do not meddle in the affairs of dragons for you are crunchy and taste good with ketchup.

See the forum rules here.
topsquark is offline   Reply With Quote
Old Jul 28th 2008, 01:39 AM   #5
Junior Member
 
Join Date: Jul 2008
Posts: 14
round trip and one way trip speed of light

Originally Posted by topsquark View Post
Out of curiosity: what was the solution? (For that matter, what was the exact problem?)

-Dan
my question was if the equation
2/c=1/(c(f)+1//(c(b)
where c represents the two way speed of light, c(f) and c(b)representing the forward speed of light in the positive direction of the OX axis and the velocity of the same light signal; in its negative direction, after reflection on a stationary mirror respectively, has some physical motivation. in particular it leads to the conclusion that if c(f) is infinite the reflected one propagates with speed c/2.
my friends answer was and i fully aggree with it:
Yes, if you believe in aether. No, if you do not. But there's no evidence to prove the existence of aether (though none to disprove it either), and even if aether did exist, it conveniently censors itself so it can't be detected, which makes it a rather pointless concept.
evabern is offline   Reply With Quote
Old Jul 28th 2008, 01:12 PM   #6
Forum Admin
 
topsquark's Avatar
 
Join Date: Apr 2008
Location: On the dance floor, baby!
Posts: 2,245
Originally Posted by evabern View Post
my question was if the equation
2/c=1/(c(f)+1//(c(b)
where c represents the two way speed of light, c(f) and c(b)representing the forward speed of light in the positive direction of the OX axis and the velocity of the same light signal; in its negative direction, after reflection on a stationary mirror respectively, has some physical motivation. in particular it leads to the conclusion that if c(f) is infinite the reflected one propagates with speed c/2.
my friends answer was and i fully aggree with it:
Yes, if you believe in aether. No, if you do not. But there's no evidence to prove the existence of aether (though none to disprove it either), and even if aether did exist, it conveniently censors itself so it can't be detected, which makes it a rather pointless concept.
Note that if cf and cb are equal then we get an aether concept that predicts special relativity, however we can certainly attribute such an equation with an aether that is more general than that.

I guess I'm using a complicated way of saying that I agree with your friend.

Thank you for elaborating.

-Dan
__________________
Do not meddle in the affairs of dragons for you are crunchy and taste good with ketchup.

See the forum rules here.
topsquark is offline   Reply With Quote
Reply

  Physics Help Forum > College/University Physics Help > Special and General Relativity

Tags
light, round, speed, trip



Thread Tools
Display Modes


Similar Physics Forum Discussions
Thread Thread Starter Forum Replies Last Post
Can light travel faster than the speed of light? kiwiheretic Light and Optics 4 Apr 2nd 2014 10:52 AM
Light speed sant1234 Special and General Relativity 4 Jun 6th 2013 07:23 AM
Question about light speed erwinsKat01 Special and General Relativity 0 Feb 25th 2012 03:09 PM
Speed of light cas34 Light and Optics 10 Jan 13th 2011 05:38 AM
compartive speed of light megloman Light and Optics 2 Jan 30th 2009 09:18 AM


Facebook Twitter Google+ RSS Feed