Back to Home

Blackholes Forum Message

Forums: Atm · Astrophotography · Blackholes · Blackholes2 · CCD · Celestron · Domes · Education
Eyepieces · Meade · Misc. · God and Science · SETI · Software · UFO · XEphem
RSS Button

Home | Discussion Forums | Blackholes I | Post
Login

Be the first pioneers to continue the Astronomy Discussions at our new Astronomy meeting place...
The Space and Astronomy Agora
Re: Re: Seeing A Black Hole.........

Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To
Posted by Bruce on March 5, 2001 00:21:16 UTC

The singularity is the stuff of quantum gravity. If the string theorists have their way then Wheeler's quantum foam, where space and time are so choatic they lose their meaning, won't exist (what I mean is the solution will be finite). This is based on the Target Space Duality where the smallest dimension would be several magnitudes greater than the Planck length. Still nobody is sure of that. Just so far (within M-theory).
If you take these two forms of the rain metric I posted.
dt2=(1-2M/r)dt2rain-2(2M/r)1/2dtraindr-dr2-0 (made the tangential term zero instead of writing it out).
and
dt2=-[dr+{1+(2M/r)1/2}dtrain][dr-{1-(2M/r)1/2}dtrain]-0 (made the tangential term zero instead of writing it out).
If you set dr=0 then you get the result that the clock runs slower as you approach the event horizon r=2M but the clock runs faster as you go from the event horizon to the singularity with a negative sign in front of the time interval.

Follow Ups:

Login to Post
Additional Information
Google
 
Web www.astronomy.net
DayNightLine
About Astronomy Net | Advertise on Astronomy Net | Contact & Comments | Privacy Policy
Unless otherwise specified, web site content Copyright 1994-2020 John Huggins All Rights Reserved
Forum posts are Copyright their authors as specified in the heading above the post.
"dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET"
are trademarks of John Huggins