Demystifier's latest activity
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Demystifier replied to the thread Collection of Science Jokes P2.
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Demystifier reacted to Greg Bernhardt's post in the thread Member and Mentor Appreciation Thread with
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It's sure been a wild ride this year! Between some AI missteps and breaking LaTeX for a good portion of the year (at least we got dark... -
Demystifier reacted to martinbn's post in the thread Graduate Confusion about the Moyal-Weyl twist with Like.
You have a Lie algebra ##\mathfrak g##, and its universal enveloping algebra ##U(\mathfrak g)##. The vectors ##\partial_\mu## are viewed...
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Demystifier replied to the thread Collection of Science Jokes P2.
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Demystifier replied to the thread Graduate Dasgupta et al., What is the alternative to a unique dS vacua?.If you can't explain it simply, you don't understand it well enough. - A. Einstein
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Demystifier replied to the thread Undergrad HUP in condensates?.It's always true, the commutator expresses something which is valid for all states. The true magic of quantum mechanics is not so much...
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Demystifier replied to the thread Undergrad Single vs. Double slit coherence clarification please.That is certainly wrong. Any detection is associated with decoherence.
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Gyroscopic forces do not do work. Just by definition because the gyroscopic forces are ##Q_j=\omega_{ij}(t,x)\dot x^i,## where...
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Demystifier reacted to A. Neumaier's post in the thread Undergrad Physicists disagree wildly on what quantum mechanics says about real… with Like.
See, e.g., the discussion in the last two sections of D. Wallace, The quantum theory of fields, and his Reading List in Philosophy of...
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Demystifier reacted to Chiara's post in the thread Undergrad On the Quantum Mechanics of Entropic Forces with Like.
He showed in his paper that the entropy of black holes, their temperature, and their mass/energy, taken together, imply the field...
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I have some solemn news to report. Many in the community had been wondering where the prolific @Vanadium 50 has been. V50 hasn't posted...
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Demystifier reacted to ohwilleke's post in the thread Undergrad C.N. Yang dies at age 103 with Like.
Theoretical physicist C.N. Yang died at the age of 103 years on October 18, 2025. He is the Yang in Yang-Mills theory, which he and his...
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Demystifier reacted to Ibix's post in the thread Undergrad About the notion of non-standard inertial frame with Like.
I think the usual interpretation of "inertial frame" requires that all objects exhibit inertia - i.e. objects that have constant...
