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0 votes
1 answer
184 views

If I make the entire universe rotate, will the bucket appear to be rotating?

Newton's bucket experiment is a way to tell if you are in a rotating frame. If you have a bucket of water which is spinning the water surface will form a concave shape. Likewise, if the bucket is not ...
AccidentalTaylorExpansion's user avatar
1 vote
3 answers
165 views

Does Mach's principle imply that the gravitational field has a non-zero curl?

I would normally visualize the gravitational field as "radial", i.e., one whose curl is zero. However, while thinking about Mach's principle, particularly the notion of frame-dragging (as ...
Tfovid's user avatar
  • 1,325
11 votes
1 answer
475 views

Is MTW's argument in favor of Mach's principle valid?

Looking at older books, I was surprised to see that the general relativity "bible" by Misner, Thorne, and Wheeler is very strongly in favor of Mach's principle, which is treated in section ...
knzhou's user avatar
  • 103k
2 votes
1 answer
113 views

Atom interferometry,gravity and inertia: What can it measure that light interferometry can't? [closed]

What previously unexplored effects in gravity and inertia can be examined with atom interferometry in ways that hasn't already been done through light interferometry? Can atom interferometry be used ...
san man's user avatar
  • 57
2 votes
0 answers
426 views

Frame dragging VS Mach's principle: rotating body in an empty universe

What I understand about Mach's principle VS modern physics: According to classical physics, there are ways to distinguish weather a body is rotating or not. For example if it is rotating, the ...
David's user avatar
  • 347