Dale's latest activity
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Dale reacted to Chicken Squirr-El's post in the thread Undergrad The paradox of symmetrical time dilation with
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You and I are standing back to back. I say you are behind me. You say I am behind you. We’re both right, right? -
Dale replied to the thread Graduate Can a causal or time-like structure emerge without assuming a metric?.That sounds likely. I know enough to understand and articulate the problem. But I haven’t a clue about actually determining the answer. -
Dale reacted to PeroK's post in the thread Graduate Horizontal component of the electric field of an infinite uniformly charged plane with
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The integral is not absolutely convergent. It's divergent improper integrals that cancel each other out by symmetry. If there is no... -
Dale replied to the thread Graduate Horizontal component of the electric field of an infinite uniformly charged plane.In post 1 you demonstrated multiple ways to take the limit that do converge. It does seem to be conditionally convergent. And each of... -
Dale replied to the thread Graduate Horizontal component of the electric field of an infinite uniformly charged plane.Indeed. -
Dale replied to the thread Graduate Horizontal component of the electric field of an infinite uniformly charged plane.Why not? Finding an indeterminate form doesn’t prevent a limit from being equal to zero. That is more or less the whole idea behind... -
Dale reacted to FactChecker's post in the thread Undergrad The paradox of symmetrical time dilation with
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Start from scratch. It's about how people in an inertial reference frame synchronize their clocks at different locations: 1) Something... -
Dale reacted to Ibix's post in the thread Undergrad The paradox of symmetrical time dilation with
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Seen in terms of geometry, it is closely analogous to two cars driving at equal speeds ##v## down straight roads that make an angle... -
Dale reacted to gmax137's post in the thread Undergrad The paradox of symmetrical time dilation with
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I think it helps to suspend your disbelief for as long as it takes you to learn how it works. Putting your mental energy into arguments... -
Dale replied to the thread Undergrad The paradox of symmetrical time dilation.They both are. Sorry to hear that you feel the world is not good enough for you. It must be upsetting to feel that way. A is also... -
Dale reacted to renormalize's post in the thread Graduate Can a causal or time-like structure emerge without assuming a metric? with
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This would happen whenever your stability condition (acyclicity?) forces the transitive closure of your general binary relation ##R\,##... -
Dale replied to the thread Graduate Horizontal component of the electric field of an infinite uniformly charged plane.That isn’t true. ##\infty - \infty## is an indeterminate form. -
Dale replied to the thread Graduate Horizontal component of the electric field of an infinite uniformly charged plane.No. There are some limits that do converge. And all of the limits that do converge are valid solutions of Maxwell's equations. They... -
Dale replied to the thread Graduate Horizontal component of the electric field of an infinite uniformly charged plane.You are missing the recent context. @Vincf is also interested in applying the infinite sheet of charge model to some real scenario. The... -
Dale reacted to DaveC426913's post in the thread High School Is there anything in the Universe that is not fundamentally made up of matter? with
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We have all been trying to tell you how you can learn more, but you are rejecting everything we try to teach you. 🤔