Re: The CMBR falsifies SR
- From: "tomgee" <tyropress@xxxxxxxxx>
- Date: 9 Aug 2006 08:48:54 -0700
Ilja Schmelzer wrote:
<cmaj10@xxxxxxxxx> schriebHold up a minute here. Just because they are not defined in
In GR, Einstein said that we don't know that there truly exists any
inertial frame. But if there were any absolute frame, we would for sure
know that there are some inertial frames.
Sorry, but this is nonsense. Inertial frames are not defined in GR.
Ilja
GR does not mean his point is invalid. All he's saying is that
we cannot find an inertial frame wrt the universe from where
we can measue the motion of a single object. I-frames are
not real wrt the universe, we can only make them up. An I-
frame is simply a point of reference in our minds. They are
not real "frames" in space, they are suppositions from where
observers are said to be observing.
An I-frame is one in which we are stationary within it. A non-
I-frame is one which is in motion relative to us. Newton's 1st
law refers to an I-frame with a single object in it which is in
motion. Newton and us are the observers and we are
observing, from within the frame which is inertial wrt us, an
object that is in motion within that frame, and thus it is in
motion wrt us.
Therefore, Newton's sole object is in a non-inertial frame
because wrt the I-frame in which it is being observed, which
we have defined to be the stationary frame of the observers,
the non-inertial frame is moving wrt to our inertial FoR. Wrt
us, the sole object is in relative motion. Yet, if we place
ourselves on the sole object, its non-inertial FoR becomes
our I-frame because it is now stationary wrt us.
Nevertheless, the sole object is still in a non-inertial frame,
even though to us it now appears to be stationary. Our
jumping onto its surface did not stop its motion - it is still
moving in the universe where it exists. Since it is not now
possible for us to find a point from where to measure its
motion, we can only say it is in motion wrt the universe in
which it exists. And such motion is that which can validly
be defined as absolute motion.
.
- Follow-Ups:
- Re: The CMBR falsifies SR
- From: Ilja Schmelzer
- Re: The CMBR falsifies SR
- From: PD
- Re: The CMBR falsifies SR
- References:
- The CMBR falsifies SR
- From: mluttgens
- Re: The CMBR falsifies SR
- From: cmaj10
- Re: The CMBR falsifies SR
- From: Ilja Schmelzer
- The CMBR falsifies SR
- Prev by Date: Re: The CMBR falsifies SR
- Next by Date: Re: The CMBR falsifies SR
- Previous by thread: Re: The CMBR falsifies SR
- Next by thread: Re: The CMBR falsifies SR
- Index(es):
Relevant Pages
|