Nugatory's latest activity
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Nugatory replied to the thread High School Question about the spatial extent of a single photon in entanglement.This works as an analogy, sort of. QM does indeed say that we have one quantum system here. It just so happens that our measuring... -
Nugatory replied to the thread High School Question about the spatial extent of a single photon in entanglement.Of course, and that's always been how we view it: the entangled pair is not two distinct particles, it is a single quantum system...
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Nugatory replied to the thread Undergrad Does Spacetime rotate like a vortex?.Further posts in this thread should be pointers to other level-appropriate sources of accurate information.
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Nugatory replied to the thread Undergrad Does Spacetime rotate like a vortex?.That's easy - the answer is "No". But why? You are conflating two unrelated concepts. The observed rotation of some galaxies leads to...
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Nugatory reacted to robphy's post in the thread Undergrad Special Relativity in a closed universe with
Like.
Here's an ancient thread with more references https://www.physicsforums.com/threads/the-twin-paradox-revisited-a-local-case-study.51197/ -
You can do the paradox without acceleration. Ultimately, therefore, it is about the difference in paths through spacetime. And not...
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I don't think you should count on this. It's often shocking how careless people/companies are on things that they are experts at.
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Nugatory reacted to AlexB23's post in the thread High School Classic question regarding the nature of quantum tunneling with Like.
Wait, that is where the missing socks go. They tunnel into the floor.
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Nugatory reacted to PeroK's post in the thread High School Classic question regarding the nature of quantum tunneling with Like.
If you've lost your cat, don't blame Quantum Mechanics.
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Nugatory reacted to Paul Colby's post in the thread High School Knowledge and information in the physical world with Like.
If that's your question then, yes. Quantum objects don't hold information that determines the outcome of the interaction was my test...
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Nugatory reacted to PeterDonis's post in the thread High School Knowledge and information in the physical world with Like.
@geordief your questions aren't really answerable because you're using vague ordinary language instead of precise math. Words like...
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Nugatory replied to the thread Undergrad The equivalent concept of phase change in classical mechanics.Something similar happens with waves in classical physics: the phase is determined by our choice of where we choose ##t=0##. I'm not...
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Nugatory replied to the thread Undergrad Relativity, time, and quantum mechanics.This thread has reached and passed the point of diminishing returns and will remain closed.
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Nugatory reacted to hilbert2's post in the thread Undergrad 2D rotation and angular momentum uncertainty with Like.
Just to point out that in individual cases, a vector ##\left|\psi\right.\rangle## can be a simultaneous eigenstate of non-commuting...
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Nugatory reacted to DaveC426913's post in the thread High School Is it safe to fly in a spinning hollow asteroid? with Like.
I have every Larry Niven book ever written. :wink: Alas, there appears to be a paucity of neutron stars with smoke rings in our Solar...