Re: [Phys-l] "Nothing in physics makes sense except in the light of ..."

[Bernard Cleyet <bernardcleyet@redshift.com>]

> I guess not.

-----------
> However, if we take a completely unrestricted view of general  
> relativity, the notion of conservation of energy is problematic.  
> For starters, if the universe has the topology of a torus (such as  
> a donut, or an apple with a wormhole in it), the notion of “energy  
> inside a boundary” is ill-defined, because the fundamental notion  
> of “inside” is ill-defined for any contour that winds through the  
> hole or around the hole, i.e. is not topologically reducible to a  
> point.



http://www.av8n.com/physics/thermo-laws.htm#bib-byers

bc




On 2009, Jun 24, , at 15:42, Bernard Cleyet wrote:

> Not the energy principle?
>
> bc, reminded of Emmy N.
>
> http://www.physics.ucla.edu/~cwp/articles/noether.asg/noether.html
>
>
>
> On 2009, Jun 24, , at 06:40, John Denker wrote:
>
> > My answer is no, there is no single proposition that pervades
> > all of physics.
>
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