Nugatory's latest activity
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Nugatory reacted to russ_watters's post in the thread High School The world is not enough with
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Something I didn't learn in school (or maybe just misremembered) is that Magellan did not return to Spain, he was killed in the... -
Nugatory replied to the thread High School Rotating disc: tidal relativity across surface of disc.The term “fabric” is used as a metaphor in unserious descriptions of relativity to avoid the math required for a real explanation of the...
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Nugatory replied to the thread High School The world is not enough.There is a (possibly apocryphal) account of great consternation when Magellan returned to Spain and his ship’s log was missing a day….
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Nugatory replied to the thread Graduate Exact symmetry, quantum states, and symmetric dynamics.There is not. Nothing stops you from writing down a wave function and a Hamiltonian with spherical symmetry. These might not describe...
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Nugatory reacted to kuruman's post in the thread Undergrad Why is thermal energy treated differently than other kinds of energy? with Like.
To @nataliaeggers: Let me elaborate a bit more along the lines presented by @jbriggs444. Suppose you have a collection of ##10^{24}##...
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Nugatory replied to the thread Undergrad EPR revisited.From the very first post in this thread: “the moment when B has ##|b>_B##” is specifying an event.
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Nugatory replied to the thread Undergrad EPR revisited.The collapsed state is a mixture of ##|+-\rangle## and ##|-+\rangle##; the uncollapsed state is a pure superposition of the two. These...
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Nugatory replied to the thread Other than just FizzBuzz to test programmer candidates.@Filip Larsen said in a later post that this was decades ago. Depending on how many decades ago (Python is 35 years old) this would...
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Nugatory replied to the thread High School Individual photons or electrons on a screen?.We can’t say for these exact images because we don’t know where they came from - they may be real photos or they may be simulation...