javisot's latest activity
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Jjavisot replied to the thread Undergrad Simplified Special Relativity: Looking to get roasted on this.Have you tried IA? You should ask it to critique your idea. It's true that if you ask it to help you create an absurd theory, it will...
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Jjavisot reacted to Jaime Rudas's post in the thread Undergrad "Scientists have measured space to be flat to high accuracy" with
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The most widely accepted cosmological model today is based on General Relativity (GR) and the cosmological principle that assumes that... -
Jjavisot replied to the thread Undergrad Entanglement might be the result of an underlying law?.Because, in some contexts, a black hole is also treated as a quantum system with S degrees of freedom, where S is proportional to the...
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Jjavisot reacted to PeterDonis's post in the thread High School A simple Black Hole question I can't find an answer for with Like.
More precisely, they encompass all vacuum (actually electrovacuum, see below) black hole solutions. The Vaidya metric was mentioned...
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Jjavisot replied to the thread High School A simple Black Hole question I can't find an answer for.I'm not sure if this question refers to "destroyed" by spaghettification, or to the information problem (since it mentions black holes...
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Jjavisot reacted to PeterDonis's post in the thread High School A simple Black Hole question I can't find an answer for with Like.
At PF, we've had questions about black holes in a number of forums. This particular question, since it's really about the basic...
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Jjavisot replied to the thread High School A simple Black Hole question I can't find an answer for.Perhaps the first thing you need to know is why you haven't asked your question in the right place. A black hole isn't cosmology; it's...
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Jjavisot reacted to PeroK's post in the thread High School A simple Black Hole question I can't find an answer for with Like.
The singularity is where the mathematical model breaks down. It isn't a physical thing. Anything that crosses the event horizon only has...
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Jjavisot reacted to Ibix's post in the thread High School A simple Black Hole question I can't find an answer for with Like.
In a classical black hole, singularities are the edge of the map we can draw of spacetime. Things that reach there fall off the edge of...
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Jjavisot reacted to Ibix's post in the thread Undergrad Cosmological Redshift and Expansion with Like.
Whether the universe has any symmetry at all is irrelevant to the description of frequency shift in terms of four vectors. It's highly...
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Jjavisot reacted to Ibix's post in the thread Undergrad Cosmological Redshift and Expansion with Like.
No I'm not. I'm explaining that comoving sources only having cosmological redshift and no kinematic frequency shift is a matter of...
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Jjavisot reacted to Dale's post in the thread High School The problem of energy appearing out of nowhere with Like.
I’m sure I can google up a reference for a relativistic damped harmonic oscillator for you. I will try to do so tonight
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Jjavisot reacted to Peter Morgan's post in the thread A question about quantum entanglement with Like.
Art Hobson's "Fields and Their Quanta: Making Sense of Quantum Foundations" and his previous work, going back decades, has always seemed...
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Jjavisot reacted to Peter Morgan's post in the thread A question about quantum entanglement with Like.
For a field theory, there are, in the first instance, no particles to be entangled. The idea that each record of an event in a detector...
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Jjavisot reacted to Demystifier's post in the thread High School Quantum field theory vs. super string theory? with Like.
Even without AdS/CFT correspondence, QFT is obtained from string theory as an approximation, in the limit in which wavelength is much...