Re: Myth of GPS Employing the Nonsense of SR and GR
- From: The Ghost In The Machine <ewill@xxxxxxxxxxxxxxxxxxxxxxx>
- Date: Fri, 10 Aug 2007 19:59:56 -0700
In sci.math, Timothy Murphy
<tim@xxxxxxxxxxxxxxxxxxxxxx>
wrote
on Fri, 10 Aug 2007 16:23:15 +0100
<Hp%ui.21414$j7.383613@xxxxxxxxxxxxxx>:
Sam Wormley wrote:
Here we are, 100 years after General Relativity
and it continues to generate more hype and heat
than light and advances.
Potter, you seem to be pissed that a theory you can understand
contributes to a very useful application, namely global navigation
satellite systems (GNSS) that has resulted in a $30B+ industry,
creating a global infrastructure benefiting people all over the world.
Aviation, shipping, asset management, survey, mining, agriculture, time
dissemination, communications networks...
Although Potter's postings seem fairly nonsensical to me,
I wouldn't have thought GR was relevant to GPS?
SR, conceivably, even though I would have thought
the discepancies from Newtonian theory would be negligible in this area.
Both are, in fact relevant. The curvature of space-time
up there is just slightly less than it is down here,
and it's enough to make a difference.
A better way of putting it, admittedly, is that GR is the
relevant issue here because of that curvature, and SR is
included as a special case.
Ps I do not dislike GR!
I would have thought that something like it
is necessary to make sense of space-time.
Indeed.
--
#191, ewill3@xxxxxxxxxxxxx
Useless C++ Programming Idea #7878218:
class C { private: virtual void stupid() = 0; };
--
Posted via a free Usenet account from http://www.teranews.com
.
- Prev by Date: Re: Anomalous gravity in rotating superconductors
- Next by Date: Re: Myth of GPS Employing the Nonsense of SR and GR
- Previous by thread: Re: Myth of GPS Employing the Nonsense of SR and GR
- Next by thread: Re: Myth of GPS Employing the Nonsense of SR and GR
- Index(es):
Relevant Pages
|
