🚀 go-pugleaf

Uncle Al wrote:

> Raymond Yohros wrote:
> > 
> > Uncle Al wrote:
> > > Raymond Yohros wrote:
> > > > 
> > > > is There any hope on detecting gravitons?
> > > 
> > > Why would you beleive they exist?
> > > 
> > > http://arXiv.org/abs/gr-qc/0409089
> > >  Spin-2 gravitons have problems  (so does the proposal)
> > > 
> > > > is LISA going to be ready in 2011 and
> > > > how is the scientific community feeling
> > > > about this proyect?
> > > 
> > > http://www.physics2005.org/events/einsteinathome/
> > > 
> > 
> > Thank you Uncle Al for those great links.
> > i'm still tring to understand the document but my
> > knoledge level on the details it's too limited.
> > how can a force exist without a carrier particle?
> 
> Gravitation is not a force.  Gravitation is a distortion of
> spacetime.  What "force" is necessary to bend otherwise parallel lines
> into covergence on the surface of a sphere?  None at all.  Test mass
> free fall follows the shape of space in a minimum action path.
> 
> Nothing is necessary to keep a hydrogen atom inflated, either.  The
> Bohr orbital radius is the global energy minimum between postive
> proton and a negative electron.  It requires a neutron star's worth of
> squeeze to find another, shallower minimum.
> 
> If you like gravitaiton as a force, then Weitzenboeck and affine
> gravitation wherein spactime torsion (not GR's spacetime curvature)
> looks like a Lorentz force.  Affine gravitation exactly contains all
> of metric gravitation (General Relativity) plus additional testable
> predictions.  It has one fewer founding postulate, too.  Alas, it's a
> bitch to calculate even compared to GR.
> 
> Now for the fun part.  Predictive models of gravitation and quantum
> mechanics are absolutely incompatible.  They are either both wrong
> fundamentally (e.g., epicycles vs. a heliocentric solar system) or are
> both limiting cases of a more general and inclusive model.  Nobody has
> any idea how to unify them.  
> 
> Gravitons are mathematically consistent curve fitting like dark matter
> and dark energy.  There is no empirical evidence for their existence
> as such (e.g., promoting a virtual particle into a detectable real
> particle or detecting an extant real postulated particle). 

UNcle AL,
last year we came across some expriment to find the speed of gravity,
which ended up as same  or close to speed of light, but since no
information can travel faster then light, So if sun is vanished it
takes 8. minute for earth to experience any effect(what does it have to
do with speed of gravity),
what does it mean by speed of gravity