gravitons

is There any hope on detecting gravitons?

is LISA going to be ready in 2011 and
how is the scientific community feeling
about this proyect?

regards

http://www.sonofsound.com

Raymond Yohros wrote:
is There any hope on detecting gravitons?


They may not even exist.

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/


--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/qz.pdf

"Uncle Al" wrote in message
...
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)

Thanks for the link. Will download it and study it - very interesting
stuff. However it is well known (and shown by Ohnaian and Ruffini in
Gravitation and Space Time) that the linear equations (which spin 2
particles coupling to mass/energy do imply) more or less force the EFE's
onto us. This is because they imply particles move as if space-time had an
infinitesimal curvature and its gauge invariance are infistemimal coordinate
transformations. The penalization to the full equations is immediate - ie
space time is curved when gravity is present and they are described by
equations obeying the principle of genital invariance. It is a rather
interesting property of the linear equations that these requirements
uniquely determines the non linear equations from the linear ones - see
Chapter 7 - Ohanian and Ruiffini - Gravitation and Space-time. AFAICS the
issue is if what the linear equations show (ie innfitesimal curvature and
gauge reformations) implies the full properties of the non linear equations
ie is it possible to have a theory that has those properties in the linear
approximation and not in the full theory?

Thanks
Bill


is LISA going to be ready in 2011 and
how is the scientific community feeling
about this proyect?

http://www.physics2005.org/events/einsteinathome/


--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/qz.pdf

Dear Bill Hobba:

"Bill Hobba" wrote in message
...
....
... infistemimal ...
... penalization ...
... genital ...
... innfitesimal ...

Dude, you have sex on the brain. Take two quickies and call us in the
morning!

David A. Smith

Raymond Yohros wrote:
is There any hope on detecting gravitons?

Not anytime soon (meaning within 5-10 years or so).


is LISA going to be ready in 2011

Doubtful. Such a large and challenging space-based system would have to
be at least half built by now to be operational in six years. AFAIK they
are not even funded yet (but I am not following it closely).


Tom Roberts

"N:dlzc D:aol T:com (dlzc)" N: dlzc1 D:cox wrote in
message news:wjfMd.1893$Yu.1751@fed1read01...
Dear Bill Hobba:

"Bill Hobba" wrote in message
...
...
... infistemimal ...
... penalization ...
... genital ...
... innfitesimal ...

Dude, you have sex on the brain. Take two quickies and call us in the
morning!

Good one David - should be generalization.

Thanks
Bill


David A. Smith

Bill Hobba wrote:

....genital invariance...

[snip]

Can't stop laughing...

"...and using the genital equivlance principle, we can show..."

"...and thus genitals are invariant with respect to coordinate
transformations..."

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/

one way or other the cause of gravity will be found, be it graviton
,space-time or any other (*)tons

Dear Eric Gisse:

"Eric Gisse" wrote in message
oups.com...

Bill Hobba wrote:

...genital invariance...

[snip]

Can't stop laughing...

And I'm sure in all the time you've been posting, you've never made a
Freudian slip?

David A. Smith