Re: GR ?


"Bill Hobba" <bhobba@xxxxxxxxxxxxxx> wrote in message
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|
| "Significant Zero" <paulpsremove@xxxxxxxxxx> wrote in message
| news:1121078106.29029.0@xxxxxxxxxxxxxxxxxxxxxxx
| >
| > "Bill Hobba" <bhobba@xxxxxxxxxxxxxx> wrote in message
| > news:_gjAe.37066$oJ.24752@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
| > |
| > | "Significant Zero" <paulpsremove@xxxxxxxxxx> wrote in message
| > | news:1120986361.29445.3@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
| > | >
| > | > "Bill Hobba" <bhobba@xxxxxxxxxxxxxx> wrote in message
| > | > news:vDYze.29292$oJ.13176@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
| > | > |
| > | > | "Significant Zero" <paulpsremove@xxxxxxxxxx> wrote in message
| > | > | news:1120901128.24485.0@xxxxxxxxxxxxxxxxxxxx
| > | > | > Would anybody that understands GR dispute the statement that the
| > | > geometry
| > | > | of
| > | > | > GR is non-Euclidean due deformation of length and duration
under
| > | > presence
| > | > | > of mass and that this deformation has the aspect and equivalence
| to
| > | > | energy?
| > | > |
| > | > | If what you are trying to say is do gravitational fields have
| > nergy -
| > | > then
| > | > | I would say yes with caveats. Energy in GR is a rather slippery
| > concept
| > | > due
| > | > | to the fact that energy is the conserved Noether charge related to
| > time
| > | > | symmetry of the lagrangian - it is rather difficult to define such
| > when
| > | > that
| > | > | symmetry is lacking due to space-time curvature - see the FAQ -
| > | >
| > | > Thanks Bill that is the energy definition that I have some
| disagreement
| > | with
| > | > and to a large degree is what much of my postings are in dispute
with
| > and
| > | > are grouping for a more complete, accurate and satisfying
definition.
| My
| > | > position is that all energy is a function of relative states of
length
| > and
| > | > time deformation with the use of the word deformation not implying
| that
| > | any
| > | > intrinsic force is present in this deformation. The energy being
| present
| > | due
| > | > to the relationship of different length/duration states which from
| > your
| > | > previous posting I thing you violently oppose {:-) .
| > |
| > | For your definition to make sense you need to do a few things. First
| > | express it mathematically so it can be used to make quantitative
| > | predictions. Secondly show it agrees with the current definition in
all
| > | cases where such agreement is possible. And thirdly show why your
| edition
| > | is superior. You have not even done the first bit.
| > |
| >
| > Thanks for the advice Bill. I was aware of what I may need to do to
| convince
| > you that your view might be improved by some subtle changes was a
mountain
| > to climb but as I had the rest of my life, so I thought I'd give it a
| go{:-)
| > I am on the first bit trying to familiarise myself with your notation OK
|
| How about actually addressing the issue? - namely your definition lacks
any
| quantitative predictive content or indeed makes any sense.
|

What are you on about ? I am only trying to compare my conceptual model with
others and my experimental data is the same as yours I hope. What do you
think the issue is Bill other than your claim that what I write is senseless
and your response of 'rest of semantic senseless rubbish sniped', which is a
bit of a broad criticism to address {:-)

| > {:-)
| >
| > | >
| > | > | http://math.ucr.edu/home/baez/physics/Relativity/GR/energy_gr.html
| > | > |
| > | >
| > | > Maybe I don't understand this
| > |
| > | Unfortunately that seems likely.
| >
| > That crack is clearly an attempt by somebody with uncertainties to try
and
| > gain some sort of psychological advantage as to the accuracy of the
| document
| > in question. Do you agree with this Bill ?
|
| No.

A totally unexpected reply {:-)

|
| > I wrote 'Maybe I don't understand
| > this' to indicate that I would try and have an open mind about it. I
may
| be
| > able to close my teeth on your head if I need to at any time Bill so
lets
| > not bite each other untill we need to Eh?{:-) and keep it amusing when
you
| > need to and then I might not bite so hard back ?.
|
| So you admit your agenda is not to discuss physics?

I don't know how you managed to conclude that from what I wrote? I am trying
to compare my model of reality with others on this group, in my book that is
discussing physics. If it can be made amusing and entertaining then so much
the better, are you in disagreement with that ?

|
| >
| > |
| > | > but it seems to me to have more conceptual holes than a
| > | > moth eaten jumper
| > |
| > | Then detail those supposed holes.
| >
| > First Hole
| >
| > It starts with a semantic hole that I know you love debating about
'energy
| > and conserved' that it never seems to address except with clichés. You
| might
| > like to do better ?
|
| How about addressing the issue rather than your pathetic attempts at
| misdirection?

What issue have you moved to now Bill ?

|
| >
| > Second hole
| >
| > 'In flat spacetime (the backdrop for SR).....'
| >
| > It then degenerates into some semantic waffle to presumable come out the
| > other side with curved space-time that is not flat.
| > Hold on clarifying this until you have dealt with 'energy and conserved'
| >
| > |
| > | > but if you are prepared to pick it to bits with me I'll
| > | > give it a try, you may be able to educate me out of my dispute but I
| am
| > | hard
| > | > to educate about something that is itself in dispute.{:-)
| > |
| > | Ok. Just make you objections specific - not some vague semantic
waffle.
| >
| > See the first hole introduced by the paper you linked
|
| You mean the hole you said was 'you love debating about 'energy and
| conserved' that it never seems to address except with clichés'. How about
| sticking to the issue at hand

You linked me to the paper Bill so I was trying to address its content,
pathetic red herrings is more your style.

| instead of wandering off into appraisals of
| what I love and do not love. But this kind of misdirection is central to
| your style and indicative of my hypotheses that your agenda is not to
| actually discuss physics but to engage in senseless semantic waffle. To
be
| specific what is wrong with the definition of energy as the conserved
| Noether charge related to time symmetry? Or is it as I suspect your math
is
| not much beyond kiddy level - yet you believe you can intelligently
discuss
| modern physical theories? There is no shame in admitting you do not know
| what conserved Noether charge is or that you are not fluent in more
advanced
| math

I have read noethers paper and I do admit that the notations is difficult
and beyond me at the moment but one of the statements about her paper was
that it ' Proves both the theorems described above (Langrangian, Lie Group)
and there converses.
This reads to me as a academic exercise that may have no bearing on physical
reality. Now if you can give a simple provable physical example that can be
proved both with and without Emmys theorem then please do and I will give
the paper more study and see if I agree with your statements in which you
use this as proof of.


| or that you do not know the generalization of Newtonian potential is
| the metric -

That is your definition but mine is that the Newtonian potential is a
gravitational gradient and nearest I can come to it in GR terms is a
momentum 4 vector this view I find support for in the FAQ paper you linked
me to.

| the shame is in avoiding the issue that you do not really
| understand what you are criticizing and trying to take the discussion into
| senseless semantics.

You may think that semantics is senseless but without a common meaning for
things no communication can occure.

|
| Bill
|
| >
| > The stuff you presented in your link is vague semantic waffle IMHO its
not
| > me thats introducing its you. In the header post I made my view as plain
| as
| > I could at that moment and asked for comments by posting it you then
| > referred me to a load of semantic waffle as presumable my posting did
not
| > have enough semantic waffle in it. ?
| >
| > |
| > | Bill
| > |
| > | >
| > | > | Bill
| > | > |
| > | > | >
| > | > | > --
| > | > | > Significant Zero E-field = Electric field, M-field =Magnetic
| > field,
| > | > two
| > | > | > unbound field effects
| > | > | > http://home.freeuk.com/paulps/
| > | > | > Maybe updates. The spuds, beans and onions are coming up
nicely.
| > Ooh
| > | > | > ah.{:-)
| > | > | >
| > | > | >
| > | > |
| > | > |
| > | >
| > | >
| > | >
| > |
| > |
| >
| >
|
|


.

Relevant Pages

  • Re: GR ?
    ... > |> Thanks for the advice Bill. ... > and your response of 'rest of semantic senseless rubbish sniped', ... > discussing physics. ... > | actually discuss physics but to engage in senseless semantic waffle. ...
    (sci.physics.relativity)
  • Re: GR ?
    ... > |> position is that all energy is a function of relative states of length ... > Thanks for the advice Bill. ... > First Hole ... Just make you objections specific - not some vague semantic waffle. ...
    (sci.physics.relativity)
  • Re: GR ?
    ... Energy in GR is a rather slippery ... Thanks for the advice Bill. ... It starts with a semantic hole that I know you love debating about 'energy ... Just make you objections specific - not some vague semantic waffle. ...
    (sci.physics.relativity)