Re: 'Source and Observer'

From: Peter Kinane (pkinane_at_iol.ie)
Date: 07/12/04


Date: 12 Jul 2004 03:58:44 -0700


"Peter Kinane" <pkinane@iol.ie> wrote in message news:d8097fcc.0406170956.2f7b79e8@posting.google.com...

"David Rutherford" <drutherford@softcom.net> wrote in message news:yOmdndg2prKZI2zdRVn-hA@softcom.net...
> \documentclass[12pt]{article}
<snip>

I celebrate the innovation and publication of a new model.

However, as always, I have a problem with the idea of spacetime and of
a second reference frame or/and observer. To elaborate on this issue:

In the Rutherford model, The Eff. Physic Model, now called The Eff.
Cosmos Calendar System, would require substitution for "event"
"point", as follows, in [], and of course some of the remainder would
need rewriting - and so would not feature concepts such as "spacetime"
 - perhaps replacing it with "co-ordinates" - (I begin by introducing
the concept of a "point": the co-ordinate system (or observer) is a
co-ordinate system of four-dimensional points):

*\subsection{Events in Spacetime}

We begin by introducing the concept of \emph{events} in spacetime.
These are the analogs in four-dimensional spacetime of points in
three-dimensional space. An [point] is something that occurs at a
specific place and at a specific time in a particular reference
frame. We represent an [point] $P$ in spacetime by $P(x, y, z, t)$,
where $x$, $y$, $z$, and $t$ are the coordinates of the [point].

[]

If we have two [points] $P_1(x_1, y_1, z_1, t_1)$ and $P_2(x_2, y_2,
z_2, t_2)$, or $P(1)$ and $P(2)$ for short, in a reference frame,
the magnitude of the spacetime separation between the two [points]
$P(1)$ and $P(2)$ is called the \emph{spacetime interval}
$s_{12}$, []*:

Your "spacetime interval" would probably be replaced by "event" -
thereby representing movement of a body in relationship with the
co-ordinates. The magnitute of movement required to be expressed in a
calendar might vary with different phenomena from a per minute rate, a
day, a year, 100 light years, ... The movement magnitudes of any such
an ongoing event would be expressed in pages or steps of the calendar.
Different calendars would express different sections of the universe.

I believe such a calendar would express, a more formidable model of
the nature of 'Nature'.

In any case, congratulations.

Comments please?

-- 
Peter Kinane
http://www.effectuationism.com/


Relevant Pages

  • Re: Simple four velocity question
    ... "everything propagates through spacetime at c". ... particles propagate at a 4-velocity whose magnitude is c. ... because for any finite mass m the magnitude of the four velocity ...
    (sci.physics.relativity)
  • Re: Simple four velocity question
    ... "everything propagates through spacetime at c". ... you have claimed a universal property ("the magnitude of the corresponding four-velocity is c") that is not actually universal -- it is specific to the tangent 4-vectors of timelike paths. ... magnitude c is a property of timelike objects, ...
    (sci.physics.relativity)
  • Re: Source and Observer
    ... if a body moves in the co-ordinate system - in relationship to the ... magnitude of movement of the body - in effect an event. ... We can easily develop a log or calendar of such events. ... nature of 'Nature' than does the Theory of Relativity. ...
    (sci.physics.relativity)
  • Re: Most radical and stupid thing I ever said. Also the most correct.
    ... You can make all kinds of conjectural relationships regarding zero. ... But in terms of construction these problems will always ... space has come to be called spacetime and this is somewhat the trouble ... I do appreciate you usage of the word magnitude and I do see ...
    (sci.physics)
  • Re: Most radical and stupid thing I ever said. Also the most correct.
    ... Conservation principles yield zero, though the losses are chocked up ... But in terms of construction these problems will always ... space has come to be called spacetime and this is somewhat the trouble ... I do appreciate you usage of the word magnitude and I do see ...
    (sci.physics)