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Nugatory's latest activity
Nugatory
replied to the thread
I
Does action at a distance violate any conservation principles?
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Indeed we might - our mental model of reality, trained by a lifetime of experience with classical phenomena, demands exactly that. But...
Aug 12, 2025
Nugatory
reacted to
PeroK's post
in the thread
B
Why is the 3 body problem unsolvable? And what will happen if someone solves it?
with
Like
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Nature laughs at the difficulties of integration!
Aug 12, 2025
Nugatory
replied to the thread
Announcement
Please welcome berkeman as PF Admin
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Most of what Berkeman does is only visible to the other mentors - so he’s been doing way more than meets the eye.
Aug 11, 2025
Nugatory
replied to the thread
B
Debating the Validity of a Conversion Factor for Mass-Energy Equivalence
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It is nonsense. The thread can remain closed.
Aug 8, 2025
Nugatory
replied to the thread
Very long-term temperature trend
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The rate of change is also important.
Aug 7, 2025
Nugatory
replied to the thread
What papers is the CO2 climate change theory based on?
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Back in 2014 we decided that we would allow science-based climate change discussions as described in the sticky that @berkeman posted...
Aug 7, 2025
Nugatory
replied to the thread
B
Can an expanding EM be quantized: E=mc^2?
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It’s best not to use the word “expand” at all, but instead rely on the math: do the math and you will be able to calculate the EM field...
Aug 7, 2025
Nugatory
replied to the thread
B
Can an expanding EM be quantized: E=mc^2?
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Assuming that by “em” you mean “electromagnetic”(although that’s the only kind of photon), then yes, the upper case letter ##E## is...
Aug 7, 2025
Nugatory
replied to the thread
B
Debating the Validity of a Conversion Factor for Mass-Energy Equivalence
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"Someone posted" is not a good start to a thread, as without the source we have no way of knowing whether you've misunderstood something...
Aug 7, 2025
Nugatory
reacted to
hokhani's post
in the thread
A
Angular momentum uncertainty principle and the particle on a ring
with
Like
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Also in classical view, when a particle is rotating about z-axis, the x,y components of angular momentum are not zero. They are zero in...
Aug 5, 2025
Nugatory
reacted to
jbriggs444's post
in the thread
A very naive encryption scheme : How would an expert crack it?
with
Like
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This original series of digits. Is it finite? If the original key is finite then one should instead use a cryptographically strong...
Aug 3, 2025
Nugatory
reacted to
JimWhoKnew's post
in the thread
I
Validity of identical eigenfunction of commutating operators
with
Like
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As @PeroK replied in #8, nothing is wrong with #7. Only basis states are considered there. But your ##\psi## in OP (#1) is a...
Aug 3, 2025
Nugatory
replied to the thread
I
Validity of identical eigenfunction of commutating operators
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If two operators commute, then at least some of the eigenfunctions of one will be eigenfunctions of the other - but not necessarily all...
Aug 2, 2025
Nugatory
reacted to
Lord Jestocost's post
in the thread
I
Is there any interpretation of QM that doesn't clash with intuition?
with
Like
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The appropriate question would be: Is there any interpretation of QM that doesn't clash with 'classical' intuition?
Aug 1, 2025
Nugatory
reacted to
gentzen's post
in the thread
I
Is there any interpretation of QM that doesn't clash with intuition?
with
Like
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Well, that depends on the version of Copenhagen. Bohr's version is inherently non-relativistic. The version by Heisenberg and his...
Jul 31, 2025
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