If I place a swinging pendulum near a Eötvös balance mass, I suppose there will be an oscillation seen in the visual scale of the balance. Can I term the system a gravity wave device?
On Wednesday, March 8, 2023 at 5:24:36 PM UTC-8, Douglas Eagleson wrote:oh thanks
If I place a swinging pendulum near a Eötvös balance mass, I suppose there will be an oscillation seen in the visual scale of the balance. Can I term the system a gravity wave device?The oscillation is too small to measure in real time.
On Wednesday, March 8, 2023 at 5:24:36 PM UTC-8, Douglas Eagleson wrote:
If I place a swinging pendulum near a Eötvös balance mass, I suppose there will be an oscillation seen in the visual scale of the balance. Can I term the system a gravity wave device?
The oscillation is too small to measure in real time.
If I place a swinging pendulum near a Eötvös balance mass, I suppose there will be
an oscillation seen in the visual scale of the balance. Can I term the system a gravity wave device?
On Wednesday, March 8, 2023 at 8:24:36 PM UTC-5, Douglas Eagleson wrote:My knowledge on gravity waves is small. But if it takes something the size of LIGO to detect,
If I place a swinging pendulum near a Eötvös balance mass, I suppose there will beIn a sense, Yes.
an oscillation seen in the visual scale of the balance. Can I term the system a gravity wave device?
But the change in gravity due to the pendulum is over such a short distance that you
would really not see the difference between that and a Newtonian interpretation of the results.
Ed
On Friday, March 10, 2023 at 12:58:42 AM UTC+8, edpr...@gmail.com wrote:
On Wednesday, March 8, 2023 at 8:24:36 PM UTC-5, Douglas Eagleson wrote:
If I place a swinging pendulum near a Eötvös balance mass, I suppose there will beIn a sense, Yes.
an oscillation seen in the visual scale of the balance. Can I term the system a gravity wave device?
But the change in gravity due to the pendulum is over such a short distance that you
would really not see the difference between that and a Newtonian interpretation of the results.
EdMy knowledge on gravity waves is small. But if it takes something the size of LIGO to detect,
the system is maybe useless.
On Thursday, March 9, 2023 at 1:19:37 PM UTC-5, Douglas Eagleson wrote:One of my intensions is to find out if my understanding is
On Friday, March 10, 2023 at 12:58:42 AM UTC+8, edpr...@gmail.com wrote:
On Wednesday, March 8, 2023 at 8:24:36 PM UTC-5, Douglas Eagleson wrote:
If I place a swinging pendulum near a Eötvös balance mass, I suppose there will beIn a sense, Yes.
an oscillation seen in the visual scale of the balance. Can I term the system a gravity wave device?
But the change in gravity due to the pendulum is over such a short distance that you
would really not see the difference between that and a Newtonian interpretation of the results.
Well the fact that LIGO does work demonstrates that is is useful.EdMy knowledge on gravity waves is small. But if it takes something the size of LIGO to detect,
the system is maybe useless.
Many things in fundamental physics are difficult to measure.
Nature is not obligated to be easy to understand.
To quote Murphy: "Nothing is as easy as it looks."
For example, even the simple system you propose may need refinement.
How will you account for the response time of the balance? this affects
the frequency of gravity waves detected
How do you isolate the balance from ground vibrations?
How will you account for vibrations due to air movement?
These are noise sources
These are just a few off the top of my head. I'm sure there are more.
Enjoy,
Ed
On Friday, March 10, 2023 at 11:54:28 PM UTC+8, edpr...@gmail.com wrote:
On Thursday, March 9, 2023 at 1:19:37 PM UTC-5, Douglas Eagleson wrote:
On Friday, March 10, 2023 at 12:58:42 AM UTC+8, edpr...@gmail.com wrote:
On Wednesday, March 8, 2023 at 8:24:36 PM UTC-5, Douglas Eagleson wrote:
If I place a swinging pendulum near a Eötvös balance mass, I suppose there will beIn a sense, Yes.
an oscillation seen in the visual scale of the balance. Can I term the system a gravity wave device?
But the change in gravity due to the pendulum is over such a short distance that you
would really not see the difference between that and a Newtonian interpretation of the results.
Well the fact that LIGO does work demonstrates that is is useful.EdMy knowledge on gravity waves is small. But if it takes something the size of LIGO to detect,
the system is maybe useless.
Many things in fundamental physics are difficult to measure.
Nature is not obligated to be easy to understand.
To quote Murphy: "Nothing is as easy as it looks."
For example, even the simple system you propose may need refinement.
How will you account for the response time of the balance? this affects the frequency of gravity waves detected
How do you isolate the balance from ground vibrations?
How will you account for vibrations due to air movement?
These are noise sources
These are just a few off the top of my head. I'm sure there are more.
Enjoy,One of my intensions is to find out if my understanding is
Ed
simply naïve. Are masses that oscillate doing something like
deforming the space-time fabric. So does a valid experiment
have to somehow observe this fabric. I know this is rather vague,
but is it a very deep question. Do I need something like an
experiment that includes the capacity to measure the speed
of gravity.
On Friday, March 10, 2023 at 1:41:39 PM UTC-5, Douglas Eagleson wrote:You are right, numbers matter. Unfortunately gravity waves, in theory, are hard numbers only truly understood by maybe 100 physicists on
On Friday, March 10, 2023 at 11:54:28 PM UTC+8, edpr...@gmail.com wrote:
On Thursday, March 9, 2023 at 1:19:37 PM UTC-5, Douglas Eagleson wrote:
On Friday, March 10, 2023 at 12:58:42 AM UTC+8, edpr...@gmail.com wrote:
On Wednesday, March 8, 2023 at 8:24:36 PM UTC-5, Douglas Eagleson wrote:
If I place a swinging pendulum near a Eötvös balance mass, I suppose there will beIn a sense, Yes.
an oscillation seen in the visual scale of the balance. Can I term the system a gravity wave device?
But the change in gravity due to the pendulum is over such a short distance that you
would really not see the difference between that and a Newtonian interpretation of the results.
Well the fact that LIGO does work demonstrates that is is useful.EdMy knowledge on gravity waves is small. But if it takes something the size of LIGO to detect,
the system is maybe useless.
Many things in fundamental physics are difficult to measure.
Nature is not obligated to be easy to understand.
To quote Murphy: "Nothing is as easy as it looks."
For example, even the simple system you propose may need refinement.
How will you account for the response time of the balance? this affects the frequency of gravity waves detected
How do you isolate the balance from ground vibrations?
How will you account for vibrations due to air movement?
These are noise sources
These are just a few off the top of my head. I'm sure there are more.
Can you do the relativistic gravity calculations?Enjoy,One of my intensions is to find out if my understanding is
Ed
simply naïve. Are masses that oscillate doing something like
deforming the space-time fabric. So does a valid experiment
have to somehow observe this fabric. I know this is rather vague,
but is it a very deep question. Do I need something like an
experiment that includes the capacity to measure the speed
of gravity.
"When you can measure what you are speaking about, and express it in numbers,
you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meagre and unsatisfactory kind:
it may be the beginning of knowledge, but you have scarcely, in your thoughts,
advanced to the stage of science, whatever the matter may be."
Lord Kelvin
Popular Lectures and Addresses vol. 1 (1889) ‘Electrical Units of Measurement’, delivered 3 May 1883
Keep working at it.
Ed
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