Re: Light Clock Nonsense

From: Paul B. Anderersen (paul.b.andersen_at_deletethishia.no)
Date: 12/07/04 

Date: Tue, 07 Dec 2004 15:41:38 +0100

jahn wrote:
> "Paul B. Anderersen" <paul.b.andersen@deletethishia.no> wrote in message news:cp1mjc$3g9$1@dolly.uninett.no...
>
>>jahn wrote:
>>
>>>It suddenly occurs to me that Paul will see a vertcal
>>>pipe, unless told a light beam is moving inside, in which
>>>case he will see whatever is necessary to parrot the
>>>SR delusions. Abandon all hope. That kind of faith
>>>won't be matched even among the snake handling
>>>religions.
>>>Sue...
>>
>>Assuming that you are not making up your
>>allegations, but are referring to the only
>>statement I have made about pipes in this thread:
>>"A stationary tube in the observers frame
>> will obviously have to lean over to keep
>> the short light pulse within the tube."
>>I will interpret your statement to mean
>>that you do not agree with this.
>>
>>I have a simple question for you.
>>Two observers are looking at the same star
>>through their respective telescopes.
>>The observers are moving at v relative to
>>each other along a line perpendicular
>>to the line of sight to the star.
>>At the time they are passing each other,
>>are their telescopes then parallel?
>>
>>You don't have to invoke SR to arrive
>>at the correct answer, which is "no".
>>(Which is why your confusion puzzles
>> me a little. You object to matters which
>> no sane person dispute, even if said person
>> don't "believe" in SR.)
>>
>>The angle between the telescopes is:
>>According to
>>.. the Galilean transform: arctan(v/c)
>>.. the Lorentz transform: arcsin(v/c)
>>
>>The difference is minute unless v is very high.
>>
>>Disagree, or admit that I am right.
>>You will make my day either way.
>>
>>(Experience tells me that you rather will
>> flee the discussion, though.)
>>
>>Paul
>
>
> Stars don't shoot bullets so your wasting your own time.

I take that to mean that you disagree.
Thanks. You made my day. :-)

The English astronomer Bradley measured
the angle you think is zero in 1728.
He used it to measure the speed of light,
and found it to be 301000 km/s.
The phenomenon I described above has been
well known ever since.

So you have a few centuries of physics to catch up. :-)

> ... not mine
> Do ya think these for devices
> are for comparing rifling marks?
> <<The VLTI Delay Line retroreflector carriage on its rails in the
> Interferometric Tunnel, as seen from the front with the openings
> through which the light beams from the telescopes will enter and
> exit. (This digital photo was obtained on September 24, 2000).
>
> http://www.eso.org/outreach/press-rel/pr-2000/phot-26-00.html
>
> Sue...

Your ability to give irrelevant references is really impressive.

Here is a relevant one:

<<Annual Aberration
   The annual motion of the Earth around the Sun causes a periodic
   aberration in the position of an object. This is due to the fact
   that the velocity of light is not infinite; the angular size of
   the correction is of order V/C. The aberration constant k is 20.496 arcsec.
   Over a year, the star traces an ellipse with semimajor axes k.
   At the ecliptic pole this reduces to a circle; on the ecliptic this is a line.>>

http://www.ess.sunysb.edu/fwalter/AST443/astrometry.html

And please, do not make an even bigger fool by yourself
by confusing this with parallax.

Paul

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