In article
comcast.com>,
"Spaceman" wrote:
> Timberwoof wrote:
>> In article
comcast.com>,
>> "Spaceman" wrote:
>>>>> Mike Jr. wrote:
>>>> On Sep 1, 12:41 pm, Sanny
hotmail.com> wrote:>>>>> Ptolemaic system considered earth to be in Center of Universe and
>>>>> created paths for other planets as complex as possible.
>>>>>
>>>> [snip crap]
>>>>
>>>> Disprove GTR by direct experimental proof. Otherwise you are just
>>>> displaying your ignorance.
>>>>
>>>> Every time someone uses GPS to navigate they are running an
>>>> experiment proving GTR. GPS wouldn't work without the GTR
>>>> corrections applied to the NAV equations.
>>>
>>> This is the most used bullshit supplied by the "relativist church".
>>> GPS uses "absolute positioning" and such "absolutes" are against
>>> GTR's most basic concepts. (no absolutes)
>>> If it did not use "absolute positioning, it could never find
>>> other "absolute positions".
>>
>> That's wrong. They had to adjust the clocks on the GPS satellites to
>> run faster to make up for their speed in orbit. A young engineer on
>> the project pointed this out, but few believed him. They either didn't
>> believe Special Relativity or didn't believe it applied to their
>> situation. Nevertheless, they installed a switch on the control panel
>> that would select the mode for the clock. It was called the Einstein
>> Switch.
>>
>> They found within a day or two that they had to leave it in the ON
>> position. Newer versions of the control panel don't have the Einstein
>> Switch.
>
> So, you agree you had to "alter" the clocks, yet you don't agree
> that the clocks malfunctoned.
They "malfunctioned" precisely as Special Relativity predicted they
would, and the fix worked precisely as Special Relativity predicted it
would.
> MORON!
Well, I can't tell you how convincing that argument is.
> LOL
>
>> On "absolute positioning": Your suggestion is wrong, too. GPS uses a
>> local coordinate system; the positions of the satellites are
>> calculated in reference to that coordinate system. However, that
>> system rotates, orbits, precesses, orbits some more, wobbles, and so
>> forth. So indeed, GPS doesn't give you your "absolute" position; just
>> your position relative to the Earth.
>
> Hello? anything in that brain anymore?
> Absolute postitions on Earth are being used.
> The postitions on Earth are considered as the "absolute" rest frame.
However, since the satellites are not in that "rest" frame, but in
moving frames of reference, Lorentz transformations must be applied to
their sense of time to make up for the difference. The adjustments made
according to predictions made by Special Relativity worked precisely.
> Get a clue.
> Basic geometry and absolute positions on Earths surface is how
> it works.
> I bet you never learned triangulation in your advanced skip over
> the classical physics parts of physics.
> :)
Get a clue yourself. In fact, I did, on the roof of the University of
Iowa physics building on a summer program for high school students.
Get a clue yourself. If you had been a scientist working on GPS, you
would have fought against the Einstein Switch, and you would have
scratched your head to try to explain why day after day the locations
calculated by the system were getting farther and farther off.
