A real second is a specific duration. Just because you have trouble measuring that duration because of inconsistent clocks doesn't mean the duration of a second changes.

 

But how do I know what that duration is if my clocks won't agree? The "reality" of the second is totally irrelevant if I cannot measure "real seconds" consistently across frames of reference. It's impossible to make a clock that counts in "real seconds".

 

Physics is only interested in things we can actually measure or determine. A "real second" is not one of those things.

But how do I know what that duration is if my clocks won't agree? The "reality" of the second is totally irrelevant if I cannot measure "real seconds" consistently across frames of reference. It's impossible to make a clock that counts in "real seconds".

 

Physics is only interested in things we can actually measure or determine. A "real second" is not one of those things.

 

Do you consider RPM as a rotational velocity?

Motor Daddy,

 

It may not be intuitive why you're wrong, but you are. If you truly wish to learn, check these out:

 

http://en.wikipedia.org/wiki/Introduction_to_special_relativity

 

This article aims to give a gentle, non-technical introduction to the theory based on geometrical intuition and explain some of the terminology and formalism involved. A more advanced, encyclopedic description will be found in the parent article Special relativity. It will be helpful to approach relativisic mechanics by first studying some properties of the classical (Newtonian) picture.

 

 

Animations:

 

1. http://www.upscale.utoronto.ca/PVB/Harrison/SpecRel/Flash/MichelsonMorley/MichelsonMorley.html

2. http://faraday.physics.utoronto.ca/PVB/Harrison/SpecRel/Flash/TimeDilation.html

3. http://faraday.physics.utoronto.ca/PVB/Harrison/SpecRel/Flash/LengthContract.html

4. http://faraday.physics.utoronto.ca/PVB/Harrison/SpecRel/Flash/ContractInvisible.html

5. http://faraday.physics.utoronto.ca/GeneralInterest/Harrison/SpecRel/Flash/Simultaneity.html

6. http://faraday.physics.utoronto.ca/PVB/Harrison/SpecRel/Flash/TwinParadox.html

7. http://www.upscale.utoronto.ca/GeneralInterest/Harrison/Flash/ClassMechanics/Foucault/Foucault.html

8. http://faraday.physics.utoronto.ca/PVB/Harrison/GenRel/Flash/Precession.html

Thread closed. This thread will not be reopened or duplicated.

 

 

Guidance for Moderators:

 

There is no need to wait quite so long to kill off threads which are nothing more than a protracted argument from incredulity, especially when the O/P:

1. Has opened other threads which make the same argument
   
2. States that he has "discussed" the same topic on other forums
   
3. States that people on those forums started to ignore his repeated stance of denial