Nugatory's latest activity
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Nugatory replied to the thread Undergrad Relativity, time, and quantum mechanics.No position means no path along which we can integrate to find the proper time. Instead we use QFT and calculate an amplitude for a... -
Nugatory replied to the thread Undergrad Relativity, time, and quantum mechanics.I think you misread what I said.
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Nugatory replied to the thread Hi. I'm Wayne. A scaffolder from NZ..I am sorry, but Grok has lied to you. The forum rules specifically do not allow posting any theory that has not already been published...
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Nugatory reacted to pervect's post in the thread High School Rotating disc: tidal relativity across surface of disc with
Like.
To understand the rotating disk in special relativity, I believe you need some background material that is not high school level. The... -
Nugatory replied to the thread Undergrad Relativity, time, and quantum mechanics.How should the Lorentz factor be applied to motion that is not classical? We don’t. Proper time is the length of a path through...
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Nugatory reacted to Ibix's post in the thread Graduate Regarding Relativity of Simultaneity, is non-local "now" impossible? with Like.
Is the question "is simultaneity still relative in a universe with a CMB that provides a global clock"? If so, yes it's still relative...
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Nugatory replied to the thread Undergrad How many sorts of time are there in physics?.In general, no. We can choose any coordinate system we please according to whatever amuses us, and there's no reason that the...
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Nugatory replied to the thread Undergrad Einstein's time formula.That’s how the math tells you that you’re misapplying it. The formula is only valid for ##v\lt c##.
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Nugatory replied to the thread Undergrad Photons & Time: t=0 What?.To quote Einstein: Time is what a clock measures. At first glance this statement appears to be no more than a clever sound bite…. But...
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Nugatory reacted to russ_watters's post in the thread High School The world is not enough with Like.
Something I didn't learn in school (or maybe just misremembered) is that Magellan did not return to Spain, he was killed in the...
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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.