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

Be the first pioneers to continue the Astronomy Discussions at our new Astronomy meeting place...
The Space and Astronomy Agora
Re: Rayon Of Schwarschild

Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To
Posted by Bruce on January 7, 2001 23:20:33 UTC

Its simple to understand how Newton would do it and more difficult to understand the GR derivation which renders the same resultant.
Since the event horizon is where the escape velocity would be c substitute c^2 for v^2.
It works out that r=2M when you express mass M in geometric units.
The curvature at r=2M is infinite as reckoned from the far away observer perspective
The local shell observer takes the integral of the above expression to show the distance r=2M+dr to r=2M is finite.
Where the curvature goes to infinite is at the singularity. GR can't describe these physics because the description for the singularity requires a marriage of quantum physics and relativity. This is what string theory (quantum gravity)is all about.

Follow Ups:

Login to Post
Additional Information
About Astronomy Net | Advertise on Astronomy Net | Contact & Comments | Privacy Policy
Unless otherwise specified, web site content Copyright 1994-2022 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