PeterDonis's latest activity
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PeterDonis replied to the thread A three month long summer vacation from public school seems stupid.I agree that both alternative views should be presented, or neither. This being GD, I think it's ok to opt for "both" at least for a... -
PeterDonis replied to the thread A three month long summer vacation from public school seems stupid.I don't think this is true. US corporations can increase their profits by investing in poorer countries to make them richer. But doing... -
PeterDonis replied to the thread High School Trying to calculate proper time of worldlines using rotating frames.The OP already did that. @JimWhoKnew was just checking to see that the answer the OP got in the rotating frame is consistent with the... -
PeterDonis replied to the thread High School Trying to calculate proper time of worldlines using rotating frames.Unfortunately PF doesn't have a way to automatically insert LaTeX tags or delimiters. -
PeterDonis replied to the thread High School Trying to calculate proper time of worldlines using rotating frames.Ah, yes, that's right. I was implicitly thinking of it that way. Good catch! -
PeterDonis replied to the thread High School Trying to calculate proper time of worldlines using rotating frames.Both work, but the double pound signs and dollar signs are definitely easier and quicker to type, and easier to keep track of. :wink: -
PeterDonis replied to the thread Undergrad Question about Parallel Transport.Generally yes, since it's generally used in a relativity context along worldlines. However, the definition only makes use of path... -
PeterDonis replied to the thread Undergrad Question about Parallel Transport.While I know what you mean by this, I would point out as a caution that the term "geodesic deviation", at least in a GR context means... -
PeterDonis replied to the thread High School Trying to calculate proper time of worldlines using rotating frames.Your ##d \phi d t## cross term isn't quite right; the factor in front should be ##2 \omega r##, not ##2 \omega r^2##. (When doing these... -
PeterDonis replied to the thread High School Trying to calculate proper time of worldlines using rotating frames.You had two bugs, opening "itex" tags and closing "tex" tags. I just used magic moderator powers to fix both of them. Your equations... -
PeterDonis replied to the thread Undergrad Schrödinger equation and classical wave equation.But you admit later on in your post that both of these things can also be true of a classical equation. So they don't explicitly tell... -
PeterDonis replied to the thread Undergrad Schrödinger equation and classical wave equation.I don't see a contradiction. A mathematical equation, in and of itself, doesn't tell you how to interpret it physically. You always have... -
PeterDonis replied to the thread Undergrad Question about discussions around quantum interpretations.My favorite quote from that essay: "If you have bought one of those T-shirts with Maxwell's equations on the front, you may have to... -
PeterDonis replied to the thread Undergrad Schrödinger equation and classical wave equation.Yes, and the heat equation is not a wave equation. So this... ...doesn't seem right. -
PeterDonis replied to the thread Undergrad Question about discussions around quantum interpretations.Note that, while, as I said in my previous post just now, the MWI doesn't work this way, the Bohmian interpretation, which is also...