Re: Two frames inside a light cone are timelike, on the cone is lightlike.
- From: "Randy Poe" <poespam-trap@xxxxxxxxx>
- Date: 15 Feb 2007 13:51:23 -0800
On Feb 15, 1:42 pm, Jeff...Relf <Jeff_R...@xxxxxxxxx> wrote:
Very well put Daryl_McCullough, Thanks.
Two frames inside a light cone are timelike, on the cone is lightlike.
If -+++ equals zero then the two frames form
the end-points of a null-geodesic on the light cone,
a " lightlike " path on the surface of a spacetime.
If it's less than zero, then the frames lie inside the light cone
and they are " timelike ", othewise it's " spacelike ".
You seem to be missing the concept of "separation", which is
what the adjectives "timelike" and "spacelike" modify. You
also seem to be missing the concept of "events", which
is what is separated when talking about a timelike or
spacelike separation.
- Randy
P.S. Note on English usage: No space between quote and
word being quoted. "Timelike", not " timelike ".
.
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