STEVE CARLIP AND IGNATIUS OF LOYOLA

Article View: sci.physics.relativity

Article #5887

Back to sci.physics.relativity Previous Next

#5887

From: Pentcho Valev
Date: Mon, 14 Jan 2008 15:17

25 lines
2859 bytes

http://math.ucr.edu/home/baez/physics/Relativity/SpeedOfLight/speed_of_light.html
Steve Carlip: "Einstein went on to discover a more general theory of
relativity which explained gravity in terms of curved spacetime, and
he talked about the speed of light changing in this new theory.  In
the 1920 book "Relativity: the special and general theory" he wrote:
". . . according to the general theory of relativity, the law of the
constancy of the velocity of light in vacuo, which constitutes one of
the two fundamental assumptions in the special theory of relativity
[. . .] cannot claim any unlimited validity.  A curvature of rays of
light can only take place when the velocity of propagation of light
varies with position."  Since Einstein talks of velocity (a vector
quantity: speed with direction) rather than speed alone, it is not
clear that he meant the speed will change, but the reference to
special relativity suggests that he did mean so.  THIS INTERPRETATION
IS PERFECTLY VALID AND MAKES GOOD PHYSICAL SENSE, BUT A MORE MODERN
INTERPRETATION IS THAT THE SPEED OF LIGHT IS CONSTANT in general
relativity."

http://www.fordham.edu/halsall/source/loyola-spirex.html
Ignatius of Loyola: "To be right in everything, we ought always to
hold that THE WHITE WHICH I SEE, IS BLACK, if the Hierarchical Church
so decides it...."

Pentcho Valev
pvalev@yahoo.com

Technical Details

Message-ID: <fa339619-aeda-49cd-a189-6ff12212ab21@k39g2000hsf.googlegroups.com>

Path: arc1-ca.pugleaf.net!g2news1.google.com!postnews.google.com!k39g2000hsf.googlegroups.com!not-for-mail

Show Full Headers

Complete Article Headers

X-Google-Thread: 10f545,730312dd871ff5db,start
X-Google-Thread: 10b271,730312dd871ff5db,start
X-Google-Thread: fa4c1,730312dd871ff5db,start
X-Google-Thread: f55d3,730312dd871ff5db,start
X-Google-Thread: 1139f8,730312dd871ff5db,start
X-Google-Attributes: gid10f545,gid10b271,gidfa4c1,gidf55d3,gid1139f8,public,usenet
X-Google-Language: ENGLISH,ASCII-7-bit
Path: arc1-ca.pugleaf.net!g2news1.google.com!postnews.google.com!k39g2000hsf.googlegroups.com!not-for-mail
From: Pentcho Valev <pvalev@yahoo.com>
Newsgroups: sci.physics.relativity, sci.physics, fr.sci.physique, 
 fr.sci.philo, fr.sci.maths
Subject: STEVE CARLIP AND IGNATIUS OF LOYOLA
Date: Mon, 14 Jan 2008 07:17:04 -0800 (PST)
Organization: http://groups.google.com
Lines: 25
Message-ID: <fa339619-aeda-49cd-a189-6ff12212ab21@k39g2000hsf.googlegroups.com>
NNTP-Posting-Host: 85.91.141.173
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
X-Trace: posting.google.com 1200323826 3529 127.0.0.1 (14 Jan 2008 15:17:06 GMT)
X-Complaints-To: groups-abuse@google.com
NNTP-Posting-Date: Mon, 14 Jan 2008 15:17:06 +0000 (UTC)
Complaints-To: groups-abuse@google.com
Injection-Info: k39g2000hsf.googlegroups.com; posting-host=85.91.141.173; 
 posting-account=Lz-LbgoAAABPDavKeW-eYeobwLHD_cvQ
User-Agent: G2/1.0
X-HTTP-UserAgent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET 
 CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30),gzip(gfe),gzip(gfe)