God & Science Forum Message | |
| Forums: |
Atm ·
Astrophotography ·
Blackholes ·
Blackholes2 ·
CCD ·
Celestron ·
Domes ·
Education
Eyepieces · Meade · Misc. · God and Science · SETI · Software · UFO · XEphem |
|
|
|
|
||||
|
|
||||||
Be the first pioneers to continue the Astronomy Discussions at our new Astronomy meeting place... The Space and Astronomy Agora |
| Re: Speed Of Light In Materials
Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To Posted by Yanniru/">Yanniru on July 7, 1999 12:59:14 UTC |
: yanniru: : My reference is Born & Wolf, Principles of Optics. In there you will find that when light propagates in materials, its group velocity slows down. Ther are so-called precursors that propagate through the materials at the speed of light, but precursors can carry no information. : Greg: : When you are done patting yourself on the back, try reading what you wrote, then explain what speed you are talking about when you say the precursors propagate through the materials at the speed of light. Is this some different speed of light? Unfortunately this will be my last contribution to this site. I am afraid it just does not measure up to what a forum on Astronomy should be. I hope the other contributors to this site will stay here and stay away from the more professional sites. |
|
| Additional Information |
|---|
 |
| About Astronomy Net | Advertise on Astronomy Net | Contact & Comments | Privacy Policy |
|
Unless otherwise specified, web site content Copyright 1994-2024 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 |