Recent content by renormalize

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    Beyond the Bots: Why High-Level Support Needs a Real Soul

    I have already reported this as spam to the mentors. Based on past experience, it should soon disappear!
  2. R

    Hello from an Independent Researcher in Cosmology

    Welcome to Physics Forums, but do note that discussing unpublished personal work is not allowed here: Speculative or Personal Theories: Physics Forums is not intended as an alternative to the usual professional venues for discussion and review of new ideas, e.g. personal contacts, conferences...
  3. R

    Undergrad Mach's principle vs two counter-rotating buckets

    But that observation in itself does not falsify Mach's principle, which seems to be the goal of your rather disjointed arguments; i.e., distant stars rotating faster than light, centrifugal force is independent of ##G##, and so on. If you can't supply actual references supporting your claim...
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    Undergrad Mach's principle vs two counter-rotating buckets

    I ask you again: please cite a credible physics reference that espouses that version of Mach's principle and quote the specific passage from that reference. As I showed in post #9, your Bondi & Samuel reference certainly does not support that version. Or just admit it's a personal theory.
  5. R

    Undergrad Mach's principle vs two counter-rotating buckets

    Again, you make an assertion without providing credible proof. Please cite a physics reference that actually states that inertial mass "does not vanish when you turn off gravity".
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    Undergrad Mach's principle vs two counter-rotating buckets

    That argument is not persuasive. How do you know that the inertial mass ##m## doesn't depend on the gravitational constant ##G## such that ##m\rightarrow 0## as ##G\rightarrow 0\,##, so that the force ##F## vanishes in that limit?
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    Undergrad Mach's principle vs two counter-rotating buckets

    Water climbing the walls of a bucket rotating relative to the fixed stars is an empirical result observed in our universe where ##G\neq 0##. How can you claim to know by mere thought the result of the same experiment conducted in some hypothetical alternative universe where ##G=0\,##? Is this a...
  8. R

    Undergrad Mach's principle vs two counter-rotating buckets

    Nope. Your Bondi & Samuel reference enumerates 10 versions of Mach's principle (some of which are contradictory!) and discusses their applicability to the theories of Newtonian absolute space (N) and Einstein in asymptotically-flat (EA) and cosmological (EC) universes. Their "Mach3" is most...
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    Undergrad Mach's principle vs two counter-rotating buckets

    Can you cite a physics reference that defines "strong Mach" in this way? I ask because, to my understanding, Mach's principle applies only to particle motion relative to the preferred frame in which the distant universe is at rest.
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    Undergrad Mach's principle vs two counter-rotating buckets

    I don't see the validity of your argument. Consider this quote about Mach's principle from S. Weinberg, Gravitation and Cosmology, pg. 17: "... if Mach is right, then the acceleration given a particle by a given force ought to depend not only on the presence of the fixed stars but also, very...
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    Graduate Magnetic monopole vs (g-2)

    Closed loops of virtual low-mass magnetic monopoles would modify the QED prediction of ##g-2## for the electron and muon. @Roberto Pavani should look at: Mass limit for Dirac-type magnetic monopoles Abstract We calculate the contribution of virtual monopole-antimonopole pairs to the anomalous...
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    Books on the philosophy of math

    https://en.wikipedia.org/wiki/The_Unreasonable_Effectiveness_of_Mathematics_in_the_Natural_Sciences
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    Graduate Is Energy conservation among sectors (EM,GR,QM) a principle?

    I think that's an eccentric view. What I would say instead is that, for each particle/field we observe in nature, we discover that the behavior of each individually derives from a Lagrangian and the concomitant principle of least action. We can add those individual Lagrangians, along with...
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    Graduate Is Energy conservation among sectors (EM,GR,QM) a principle?

    Our best current model of fundamental physics is the Standard Model of particle physics combined with General Relativity for gravitation. Both of those theories are based on Lagrangians. So the existence of a "combined action" is an empirical observation about nature.
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    Graduate Is Energy conservation among sectors (EM,GR,QM) a principle?

    Can you define what what you mean by the word "principle"? Or are you asking: "We all know that the Energy is conserved, what I'm asking if for modern physics it is just a postulate or a theorem." If that's your actual question, then the answer is: the conservation-of-energy is a theorem.