PeroK's latest activity
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PeroK replied to the thread Undergrad Entanglement might be the result of an underlying law?.A field is a function of spacetime, by definition. It might be an classical electromagnetic field or a quantized electron field, for... -
PeroK replied to the thread Undergrad Entanglement might be the result of an underlying law?.All fields are non-local, by definition.
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PeroK reacted to QuarkyMeson's post in the thread Studying Academic Roadmap: Bridging High School Mechanics to Theoretical Quantum Mechanics with
Like.
You could do it like physics students and just get thrown into it. After you've been exposed to linear algebra you have 90% of the... -
PeroK reacted to renormalize's post in the thread Does the Lorentz factor aid understanding of SR, or obscure it? with
Love.
I disagree. Consider this right triangle: We have the "awkward... -
PeroK reacted to Ibix's post in the thread Undergrad Is Water's Volume Expansion Upon Freezing an Intrinsic Property? with Like.
I froze a plastic bottle full of water (as near to mo air as I could manage) and put it in a bowl of water. It floated: And a crop of...
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PeroK reacted to kuruman's post in the thread Undergrad Is Water's Volume Expansion Upon Freezing an Intrinsic Property? with Like.
Did you weigh the bag every day to make sure that there was no mass loss through permeation of water vapor?
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PeroK reacted to Demystifier's post in the thread High School A simple Black Hole question I can't find an answer for with Like.
An answer at a level of popular physics. Because our theory of gravity, called general relativity, says that gravity is not merely...
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PeroK reacted to swissgirl1999 Refer's post in the thread Undergrad Is Water's Volume Expansion Upon Freezing an Intrinsic Property? with Like.
The standard physical chemistry and thermodynamics literature states that water expands upon freezing due to the crystalline structure...
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PeroK reacted to Ibix's post in the thread High School A simple Black Hole question I can't find an answer for with Like.
This is a High School level thread. I think the singularity theorems may be a bit above the OP's current level. In #2 I see I did say...
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PeroK 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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PeroK replied to the thread High School A simple Black Hole question I can't find an answer for.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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PeroK reacted to PeterDonis's post in the thread Undergrad Cosmological Redshift and Expansion with Like.
The "mechanism" is that the light travels on null geodesics of the (curved) spacetime geometry. That's all there is to it, according to...
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PeroK reacted to Dale's post in the thread Graduate A rotating frame equation for the "carousel experiment" with Like.
I think this is the issue I take. Just because you have a way that you prefer does not make the mainstream approach wrong. You are...
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PeroK reacted to Simon F's post in the thread Graduate A rotating frame equation for the "carousel experiment" with
Sad.
I think I was wrong making a proposal on a web forum. Anyway, I hope it could illuminate some minds here about how wrong the mainstream... -
PeroK reacted to Ibix's post in the thread High School Dark energy might not be constant after all with Like.
It's 404 for me too. I suspect it may be a region issue if the link works for you. Are you referring to this article...