PeterDonis's latest activity
-
PeterDonis reacted to Dale's post in the thread Undergrad Explanation requested for a relativistic scenario wherein two seemingly valid measurement procedures lead to different results for the same observable with
Like.
In B's frame A passed the left pole and started its clock a long time before B passed the right pole. So in B's frame the sequence is... -
PeterDonis replied to the thread Graduate How valid is the indivisible interpretation of quantum mechanics?.Pretty much every interpretation says it at least points to a solution of the measurement problem, and within the context of each...
-
PeterDonis replied to the thread Graduate How valid is the indivisible interpretation of quantum mechanics?.Ah, ok. This references several papers by Jacob Barandes, whose work has been discussed in previous PF threads. This one is probably the...
-
PeterDonis reacted to berkeman's post in the thread Undergrad Net magnetic force in discontinuous circuits? with Like.
A reply by the OP that indeed indicates he is proposing an EM drive has been deleted, and this thread will now be closed.
-
PeterDonis reacted to Dale's post in the thread Undergrad Net magnetic force in discontinuous circuits? with Like.
As you prepare your post, be aware that this is well established science. EM drive devices are not discussed on PF beyond the already...
-
PeterDonis reacted to Dale's post in the thread Undergrad Net magnetic force in discontinuous circuits? with Like.
You are neglecting the E field and the ##\rho## and ##\dot \rho## terms of Jefimenko's equations. Including those two terms was the...
-
PeterDonis reacted to Dale's post in the thread Undergrad Net magnetic force in discontinuous circuits? with Like.
The Biot Savart law doesn’t apply to the modified circuit. The Biot Savart law is only valid for magnetostatic situations. You would...
-
PeterDonis replied to the thread Graduate How valid is the indivisible interpretation of quantum mechanics?.Where? Please give a specific reference. "The indivisible interpretation" is not any recognized interpretation that I've heard of.
-
PeterDonis replied to the thread Graduate How valid is the indivisible interpretation of quantum mechanics?.Moderator's note: Thread moved to the QM interpretations subforum.
-
PeterDonis reacted to Dale's post in the thread Graduate Is Energy conservation among sectors (EM,GR,QM) a principle? with Like.
Again, there is no single answer. Any author can choose whether they take it as an assumed principle or a theorem proven from other...
-
PeterDonis replied to the thread Graduate Consistent histories -- particle positions prior to measurement.Moderator's note: Thread moved to the QM interpretations subforum.
-
PeterDonis reacted to Ibix's post in the thread High School Do Dark Energy and the Casimir effect indicate Exotic Matter could exist? with Like.
Your intro thread says "18 y/o physics enthusiast". Special relativity should be well within your reach - you'll need calculus if you...
-
PeterDonis replied to the thread Undergrad What empirical observation supports the axiom of continuous spacetime?.The title question of the thread has been addressed and the thread is now closed. Thanks to all who participated.
-
PeterDonis reacted to Dale's post in the thread Undergrad What empirical observation supports the axiom of continuous spacetime? with Like.
It seems you missed the statement: This includes the Nobel-related evidence that you cited. Everything is still open to future evidence...
-
PeterDonis replied to the thread Undergrad What empirical observation supports the axiom of continuous spacetime?.This is not correct. I have already pointed out how your examples only show certain kinds of discreteness. None of those kinds are...