From: Sam Wormley on
Yuancur(a)gmail.com wrote:

>
> I'm standing on the Earth, how do you measure my acceleration?
> Remember, you aren't allowed to reference anything to abnything else.

CLOSED LAB

You said standing on earth, so I know that the earth moon
system is in free fall around the Sun... but I can't see
the sum moon or stars.

I can determine that the earth is rotating...
pendulum
gyroscope

I can determine tidal flexing caused by at least two
bodies... and over time determine that we are likely
in orbit about the sun and a companion moon.... getting
the masses and distances correct... and therefore
determining the forces and acceleration.

But.... acceleration is absolute and can be measured by
a number of different techniques.

If one can see starlight, the aberration of starlight
is an accurate way to determine orbital and rotational
velocity.

>
> Counting is not the same as measuring.

Counting is a measurement

>
> A measurement necessitates reference to a standard.

Most measurements are differential and do not
require a reference standard.... some type of measurement do.
and many standard are easy to find in many laboratories.
>
> When you count 10 fringe shifts, what does that mean, if you don't
> compare it with some standard count?

I assume you are asking about the Michelson–Morley experiment
interferometer -- lots of resources on the web.
>
> Love,
>
> Jenny
>
>

From: Yuancur on
On Aug 8, 10:41 pm, "N:dlzc D:aol T:com \(dlzc\)" <dl...(a)cox.net>
wrote:
> Dear Yuancur:
>
> <Yuan...(a)gmail.com> wrote in message
>
> news:6d202070-208a-401b-8221-9aedb1461f1a(a)a1g2000hsb.googlegroups.com...
> On Aug 6, 7:29 pm, Eric Gisse <jowr...(a)gmail.com> wrote:
>
> > On Aug 5, 9:37 pm, Yuan...(a)gmail.com wrote:
> >> > Eric, how do you measure something without reference
> >> > to something else?
>
> >> Acceleration is absolute - no reference required.
>
> > I'm standing on the Earth, how do you measure my
> > acceleration?
>
> Assume you have a body temperature of 98.6 degF.  Measure the
> apparent temperature very carefully, and the difference will be
> indicative of your acceleration.
>

Then we're using a thermometer and a standard value (98.6 deg F) as
references.


> > Remember, you aren't allowed to reference anything
> > to abnything else.
>
> How about assuming something about your local physics?
>
> >> Counting fringe shifts is absolute - no reference
> >> required.
> > Counting is not the same as measuring.
>
> You are kidding, right?  "microfine transitions of a caesium
> atom" is not a measurement?  The odometer of your car counts the
> number of times your wheels rotate, but this is not a
> measurement?
>

It's just a count if it isn't calibrated, i.e. referenced to some
standard.

Until then, all I know is that my wheel revolved 40 times a minute.

If yours revolved at 30 times a minute (a reference), then I'm going
faster than you (*if* our wheels have the same dimater (another
reference) etc.

> > A measurement necessitates reference to a standard.
>
> Like a "unit"?
>

In essence.

> > When you count 10 fringe shifts, what does that
> > mean, if you don't compare it with some standard
> > count?
>
> Not in this experiment, it is "is it greater than zero"?
>

First you compare the lengths of the arms (a reference). That
comparison (those measurements) has an error factor, so why not adjust
the lengths until there are zero fringe shifts and assume that this
means the arms are of equal length. We then rotate the apparatus and
count the fringe shifts again. Then we compare the counts.

Two references/comparisons by my count.

Love,

Jenny
From: Yuancur on
On Aug 6, 4:01 pm, Uncle Al <Uncle...(a)hate.spam.net> wrote:
> Yuan...(a)gmail.com wrote:

> > But surely the times of travel do vary, because of the Earth's
> > rotation.
>
> http://arxiv.org/abs/0801.0287
>
> Know something empirical before you offer opinion.
>

Do you think that the velocity of light is c in an accelerating
frame?

Do you think that the velocity of light is the same in every
direction in an accelerating frame?

Do you think that the velocity of light is constant in a frame of
varying acceleration?



Love,

Jenny
From: Spaceman on
N:dlzc D:aol T:com (dlzc) wrote:
> You are kidding, right? "microfine transitions of a caesium
> atom" is not a measurement? The odometer of your car counts the
> number of times your wheels rotate, but this is not a
> measurement?

Dear David,
It is a measurement locally only but once it is moving
a transistion actually will move further even if it is doing the
same "local" motion before it began to move.

Lets think about it simply,
Take a transition of a pendulum, sitting still the clock will allow
this pendulum to move 6 inches in a curved arch back and forth.
(that is local transistion)
If we move this clock sideways does the each transition of the pendulum
still
move the same distance "non locally"?
Of course not.
so the non local transition does not coinside with the local transistion.
It will move further in one direction and less in the other if moved
sideways.
The direction it moves and speed will change the non local transition.

--
James M Driscoll Jr
Creator of the Clock Malfunction Theory
Spaceman



From: Spaceman on
Yuancur(a)gmail.com wrote:
> On Aug 6, 4:01 pm, Uncle Al <Uncle...(a)hate.spam.net> wrote:
>> Yuan...(a)gmail.com wrote:
>
>>> But surely the times of travel do vary, because of the Earth's
>>> rotation.
>>
>> http://arxiv.org/abs/0801.0287
>>
>> Know something empirical before you offer opinion.
>>
>
> Do you think that the velocity of light is c in an accelerating
> frame?

Depends on what observer is measuring it.
:)


>
> Do you think that the velocity of light is the same in every
> direction in an accelerating frame?

Depends on what observer is measuring it.
:)


> Do you think that the velocity of light is constant in a frame of
> varying acceleration?

Depends on what observer is measuring it.
:)


Unless all observers are in the same "inertial frame" they will not
measure the c to be the same.

--
James M Driscoll Jr
Creator of the Clock Malfunction Theory
Spaceman