Back to Home

God & Science 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 | God and Science | Post
Login

Be the first pioneers to continue the Astronomy Discussions at our new Astronomy meeting place...
The Space and Astronomy Agora
Spacetime Is Real

Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To
Posted by Rowanda on December 24, 2003 16:35:11 UTC

Dear Whittier,

You are confusing coordinates with spacetime. Einstein made it clear that space is real when his Theory of General Relativity predicted that the force of gravity can be replaced by geometric variations of flat space. That leaves open the question of whether time ia a real dimension or just a representation. Time certainly exists but it may not be a dimension.

LQG has further soldidfied the real existence of space by proving that it is quantized and independent of coordinate system. That is, the spin network that underlies space and time do not have apriori location in space. Location is derived from the network, as well as time.

Scientific American has a very readable account of LQG by Lee Smolin. A more advanced discussion can be found in the link I provided to Edge.com on the Big Bang Forum.

Wanda

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 1994-2018 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