Re: Evidences for the ether

Sorcerer wrote:
"Paul B. Andersen" <paul.b.andersen@xxxxxxxxxxxxxxxx> wrote in message news:ebtaau$itc$1@xxxxxxxxxxxxxxxxxxx
| Sorcerer wrote:
| > "Paul B. Andersen" <paul.b.andersen@xxxxxxxxxxxxxxxx> wrote in message
| > news:ebslhq$41p$1@xxxxxxxxxxxxxxxxxxx
| > | Sorcerer wrote:
| > | > "Paul B. Andersen" <paul.b.andersen@xxxxxxxxxxxxxxxx> wrote in message
| > | > news:ebruel$1d0$1@xxxxxxxxxxxxxxxxxxx
| > | > | Sorcerer wrote:
| > | > | > "Paul B. Andersen" <paul.b.andersen@xxxxxxxxxxxxxxxx> wrote in message
| > | > | > news:ebqkqg$2mo$1@xxxxxxxxxxxxxxxxxxx
| > | > | > | Let us take one step at the time.
| > | > | > | A GPS satellite emits its time together with data that make
| > | > | > | it possible to know its position when the signal was sent.
| > | > | > | A receiver receives this signal.
| > | > | > | How can the receiver find its distance from the satellite?
| > | > | >
| > | > | > Signals are recieved from a minimum of three satellites which
| > | > | > inform the receiver of their position and the time sent.
| > | > | > An algorithm in the receiver then computes position based
| > | > | > on that data. The exact details of the algorithm are not crucial
| > | > | > to the discussion since it depends on the manufacturer of the
| > | > | > reciever.
| > | > |
| > | > | Let's stop here for a bit.
| > | >
| > | > Don't interrupt. Read to the end and then ask questions.
| > | > [interruption snipped]
| > | >
| > | >
| > | > | > One would expect to get good altitude information from
| > | > | > a satellite directly overhead, but it turns out this is not the case
| > | > | > for a large number of receivers due to the uncertainty of
| > | > | > a GPS clock which was damaged (Ghost's term) prior to
| > | > | > launch to agree with some idiotic reliance on the foolish idea
| > | > | > that the speed of the signal was to be from A to A in time t'A-tA,
| > | > | > whereas in fact the time of the signal is from A to B in time tB-tA,A
| > | > | > being the satellite and B being the receiver. The direct distance to the
| > | > | > satellite is therefore AB/(tB-tA), tA been sent as part of the data,
| > | > | > the signal is not returned to the satellite with tB being
| > | > | > half (t'A-tB) + tA
| > | > | > because the satellite is MOVING and it does not want to know
| > | > | > where it is because it cannot do anything about it anyway.
| > | > | >
| > | > | > This foolishness may be found in
| > | > | >
| > http://www.fourmilab.ch/etexts/einstein/specrel/www/figures/img7.gif
| > | > | >
| > | > | > However, GPS is most useful for sailors where altitude is not
| > | > | > a consideration, and aircraft still rely on barometric and radar
| > | > | > altitude. GPS can be used to navigate on land, but this is more
| > | > | > of a gimmick than a necessity unless you happen to be a soldier
| > | > | > in a wilderness. Cell phones could do a better job in those regions
| > | > | > where gimmicks are considered status symbols, and so my
| > | > | > son-in-law (#2) has GPS and a mobile phone, as does my
| > | > | > niece's boyfriend. I too have a mobile phone, but for the simple
| > | > | > reason that it is cheaper than renting a land line and not because it
| > | > | > plays ringtones. I seldom use it.
| > | > | > I navigate by the sun, stars and (predominantly) road signs,
| > | > | > I am always instinctively aware of the direction of North.
| > | > | > Altitude I find rather difficult with instrumentation, but I cannot
| > | > | > rely upon GPS for accuracy.
| > | > |
| > | > [snip interruption]
| > | > |
| > | > | > | You wouldn't repeat yourself, Androcles, because you never
| > | > | > | explained this.
| > | > | > | But you do know the answer, don't you?
| > | > | >
| > | > | > Yes. The details of some of the algorithms I would perhaps need
| > | > | > to check on, I do not recall them in detail, but I'm not going to
| > | > | > because they do not particularly interest me. Were I being paid
| > | > | > as a consultant, I would do so. Are you planning on paying me as
| > | > | > a consultant?
| > | > | > I thought not.
| > | >
| > | > [interruption snipped]
| > | >
| > | > | > You can, however, award me an honorary degree from Agder
| > | > | > for services rendered above and beyond the call of duty, to go
| > | > | > alongside my diploma which you were gracious enough to award.
| > | > | > I have it framed, although it is gathering dust somewhere...
| > | > | > probably under my bed. Oh, well...
| > | > | > Androcles.
| > | > |
| > | > | I will award you another diploma when you have
| > | > | explained how the GPS works.
| > | > | But you will have to deserve it.
| > | > | You have explained nothing so far.
| > | >
| > | > It's not my fault you cannot understand plain English. As I said,
| > | > the last diploma is gathering dust somewhere, the same as your neuron.
| > | > The GPS works by sending data from three or more satellites
| > | > to a receiver which then analyzes it. What more do you want that
| > | > is not contained in the text above?
| > | >
| > | > Androcles
| > |
| > | I am so sorry I interrupted your verbose lecture.
| > | But in your eagerness to tell me about sailors, mobile phones,
| > | ring tones and road signs, I am afraid you forgot to explain
| > | how the GPS works.
| >
| > The GPS works by sending data from three or more satellites
| > to a receiver which then analyzes it. What more do you want that
| > is not contained in the text above?
| > Androcles
|
| I want to know how the receiver computes its position.

I've told you, the details of the algorithm varies from manufacturer
to manufacturer. ANYONE can analyze data.

Anyone but you?
I didn't ask for the details of the algorithm, I asked for
the principle, which does not vary but is always the same.

Why do I have to repeat myself, moron? Read the verbose lecture
and LEARN, stupid.

Your verbose lecture was mindless babble, which you are very
well aware of. As usual you didn't even try to make sense.

The reason is obvious, you tried to hide the fact that you
cannot answer my question because you don't know how the GPS works.

I knew that, of course, because nobody who knows how the GPS
works could write something as stupid as this:
Androcles wrote:
| The correction of the damage, 38 usec per day,
| corresponds to 0.4909981824 inches per day, far less than the stated
| accuracy of the system. Uncorrected, you'll be 15 feet out of position
| in a year.

You didn't for a minute think that I seriously wanted
you to explain how the GPS works because I didn't know,
did you? :-)

I have achieved what I wanted: to make you yet again demonstrate
your ignorance of how the GPS works.

Not that it was necessary, nobody ever suspected you of knowing that.
But now it is confirmed.

Paul
.

Relevant Pages

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  • Re: Evidences for the ether
    ... | Sorcerer wrote: ... | Namely how the GPS works. ... | I think you should enlighten us, Androcles. ... A receiver receives this signal. ...
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  • Re: The Single Experiment that Destroys Einstein.
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