renormalize's latest activity
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Rrenormalize reacted to Demystifier's post in the thread Undergrad Entanglement swapping and Bohmian mechanics with
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Since the recent thread on Bohmian mechanics (BM) is now closed, I open a new thread in which I want to explain something that bothers... -
Rrenormalize replied to the thread Ultramassive Black Star Cosmology: Quantum Phase Transition.Welcome to Physics Forums, but note that this is not a forum to present, discuss, or seek comments on a personal theory that has not yet...
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Rrenormalize replied to the thread First steps with Feynman diagrams.As @haushofer says, it's correct. Consider this example I found online, more or less at random: (https://arxiv.org/pdf/hep-ph/9801260)...
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Rrenormalize reacted to Dale's post in the thread High School What Medium Does Light Travel Through in Space? with
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If the rule is personal preference then my personal preference is simply to acknowledge that the quantities have different dimensions in... -
Rrenormalize reacted to Dale's post in the thread High School What Medium Does Light Travel Through in Space? with
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No. If ##c## is a dimensionless 1 then you could equally say that it was absorbed into the space coordinate. Or that its cube was... -
Rrenormalize replied to the thread High School What Medium Does Light Travel Through in Space?.I would say instead that ##c## simply disappears by choosing uniform units, as I tried to explain in post #118. Please indulge me by...
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Rrenormalize replied to the thread High School What Medium Does Light Travel Through in Space?.Yes, which in tensor notation in D-dimensions, just means to fully contract any given rank-k tensor with the D-dimensional Levi-Civita...
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Rrenormalize replied to the thread High School What Medium Does Light Travel Through in Space?.Yes, both tensors contain the same information (6 independent components) since one is just a rearrangment of the other. It's exactly...
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Rrenormalize reacted to Matterwave's post in the thread High School What Medium Does Light Travel Through in Space? with
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I vote for "lights"... ##\frac{light\cdot \cancel{second}}{\cancel{second}}=light## -
Rrenormalize replied to the thread High School What Medium Does Light Travel Through in Space?.But the constant speed-of-light ##c## is "dimensional" only because we humans have traditionally chosen to measure length and time in...
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Rrenormalize reacted to Dale's post in the thread High School What Medium Does Light Travel Through in Space? with
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Really? You think we don’t grasp the question? No, we understand what they are asking. The problem is just that people don’t like the... -
Rrenormalize replied to the thread High School What Medium Does Light Travel Through in Space?.You don't need curved spacetime (GR), only the flat Minkowski spacetime of SR. The relevant equation is simply ##c=1## in natural units...
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Rrenormalize replied to the thread High School What Medium Does Light Travel Through in Space?.Nope, there is only one, unique maximum elevation angle in 3D geometry, namely ##\theta_{\bot}\,##, just like there's only one ##c##...
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Rrenormalize replied to the thread High School What Medium Does Light Travel Through in Space?.It's because ##c## is an inherent fixed characteristic of the geometry of 4D Minkowski spacetime. Consider this 3D spatial analogy: you...
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Rrenormalize replied to the thread High School What Medium Does Light Travel Through in Space?.Nothing! It's a postulate (but well-founded on empirical evidence!) that our (local) universe is a 4D Minkowski spacetime with an...
