Re: universe expanding, not from any particular spot

[Lisa Gardner <iamlisa@TAMPABAY.RR.COM>]

I did a search for Randall-Sundrum model and this is one site I
found. -
http://www.askjeeves.com/main/metaAnswer.asp?MetaEngine=AltaVista&logQ
ID=3BA1A6817371D4118A3D009027F63228&qCategory=hobb&qSource=0&frames=ye
s&site_name=Jeeves&ads=&MetaTopic=Dr.+Csaba+Csaki%2C+ITP+%26amp%3B+Los
+Alamos+National+Lab%2C+Cosmolog&MetaURL=http%3A%2F%2Fdoug-pc.itp.ucsb
.edu%2Fonline%2Fsusy99%2Fcsaki%2F&EngineOrdinal=4&ItemOrdinal=1&ask=Ra
ndall-Sundrum+model+metasearch&origin=0&MetaList=http%3A%2F%2Fdoug-pc.
itp.ucsb.edu%2Fonline%2Fsusy99%2Fcsaki%2F&x=20&y=11


Lisa Gardner (age 9 11/12 yrs)





> From: phys-l@lists.nau.edu: Forum for Physics Educators
> [mailto:PHYS-L@lists.nau.edu]On Behalf Of Jack Uretsky
> Sent: Sunday, August 13, 2000 8:02 PM
> To: PHYS-L@lists.nau.edu
> Subject: Re: universe expanding, not from any particular spot
>
>
> Ahh!  One small correction:
>
> On Sun, 13 Aug 2000, John Denker wrote:
>
>
> >  We do not know, and do not care, whether our universe is
> > embedded in a higher-dimensional space.
>
>         A lot of people care a whole bunch.
>         In the Randall-Sundrum model, there may be extra
> large-dimensions
> in which gravity, but nothing else, acts.  Gravity at short
> distance is
> modified; the scale of the modification varies inversely as
> the number of
> extra dimensions.  Two extra dimensions would be detectable
> at distances
> of the order of a millimeter.  Experiments are in progress
> at the U. of
> Washington, and probably elsewhere.
>                                         Regards,
>                                                 Jack