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Since my question relates to gravitational field I've placed it here under Gen. Rel. section to encourage more knowledgeable ideas & responses from those who are gravitationally astute.
Here's my question:
If the Earth were to increase its gravitational field at the surface (for whatever reason), would one be able to detect that increase with non-inertial measurements?
I mean, would one be able to detect it with methods other than weight changes, mass or inertial changes (like gravitometers), etc.?
For example. to be more specific, is it possible to detect a brief change in Earth's gravity field with a laser interferometer? Let's say an interferometer that is oriented with one arm pointing upward (vertical) for a hundred meters, and the other arm placed horizontal to the Earth's surface for 100 meters? A laser source of specific frequency located near the vertex passes light thru a beam splitter, reflects it off the end of each arm and back to the vertex where a detector registers the interferebnce pattern, (as in a usual interferometric setup).
Let us assume for simplicity the field is constant for the vertical distance of the vertical arm (no field gradient) and equal to the field in the horizontal direction. Now the Earth's gravity field changes abruptly for, say, a few seconds or so while we are monitoring the interference pattern. Assuming the interferometer is sensitive enough, will the gravity change be detectable? Will there be a shift in the pattern? Why or why not? Does the velocity of light change with a field change? Does the frequency change so as to make the gravity variation detectable?
Can someone interested enough give me some logical supporting opinions please?
Creator
Here's my question:
If the Earth were to increase its gravitational field at the surface (for whatever reason), would one be able to detect that increase with non-inertial measurements?
I mean, would one be able to detect it with methods other than weight changes, mass or inertial changes (like gravitometers), etc.?
For example. to be more specific, is it possible to detect a brief change in Earth's gravity field with a laser interferometer? Let's say an interferometer that is oriented with one arm pointing upward (vertical) for a hundred meters, and the other arm placed horizontal to the Earth's surface for 100 meters? A laser source of specific frequency located near the vertex passes light thru a beam splitter, reflects it off the end of each arm and back to the vertex where a detector registers the interferebnce pattern, (as in a usual interferometric setup).
Let us assume for simplicity the field is constant for the vertical distance of the vertical arm (no field gradient) and equal to the field in the horizontal direction. Now the Earth's gravity field changes abruptly for, say, a few seconds or so while we are monitoring the interference pattern. Assuming the interferometer is sensitive enough, will the gravity change be detectable? Will there be a shift in the pattern? Why or why not? Does the velocity of light change with a field change? Does the frequency change so as to make the gravity variation detectable?
Can someone interested enough give me some logical supporting opinions please?
Creator
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