Roberto Pavani's latest activity
-
Roberto Pavani reacted to PeterDonis's post in the thread High School The One Electron Universe suggested by Wheeler with
Like.
Unfortunately, as I've already pointed out, it's often confused with modeling antiparticles as particles with arrows in Feynman diagrams... -
Roberto Pavani replied to the thread High School The One Electron Universe suggested by Wheeler.I'm not sure I fully understand the one-electron hypothesis, so please correct me if I'm wrong. What I understand is: Under CPT, at... -
Roberto Pavani reacted to A. Neumaier's post in the thread Graduate Universal quantum physics with
Like.
Any relativistic quantum field theory needs an underlying globally hyperbolic manifold. -
Roberto Pavani reacted to Swamp Thing's post in the thread Undergrad Do vocal tract resonances assist a singer's pitch control? with
Like.
Thank you for taking the time to post a detailed reply. It's always good to have a sober, grounding antidote against AI's tendency to... -
Roberto Pavani replied to the thread High School Ant on a stretchy rope puzzle.You're right! f(n) = n·ln(n)·ln(ln(n))·... works too, for any finite number of iterated logs (integral test: each step gives the next... -
Roberto Pavani replied to the thread Undergrad Do vocal tract resonances assist a singer's pitch control?.From practical experience (choir singing, reading music, and knowing people who sing "out of tune"): Pitch control is primarily... -
Roberto Pavani replied to the thread Undergrad Capacitor Voltages at t = 0: Zero or Split?.The transfer function H(s) of this network is well-defined and unambiguous. The "no solution" issue lives entirely in the definition of... -
Roberto Pavani replied to the thread Undergrad Capacitor Voltages at t = 0: Zero or Split?.@Dale As I suggested earlier, this thread would be better suited for the Electrical Engineering forum section. The reason is simple... -
Roberto Pavani replied to the thread Undergrad Capacitor Voltages at t = 0: Zero or Split?.Step generators do not exist. Wires without impedance (neither R nor L) do not exist. The circuit as stated is electrically invalid: V-C... -
Roberto Pavani replied to the thread Undergrad Why ##a^0=1##?.As an undergraduate answer, this is one of the best answer (more than sufficient). The implicit prerequisite is that you're working in... -
Roberto Pavani replied to the thread High School Ant on a stretchy rope puzzle.My 2 cents: For the general case where the rope length grows as ##L(t) = L_0 \cdot a(t)##, the ant reaches the end if and only if... -
Roberto Pavani replied to the thread Undergrad Capacitor Voltages at t = 0: Zero or Split?.V(C2) = 1/2 V(V1) in t=0+ 1) Step generator is ideal 2) Analytical continuation: lim R2->0 -> V(C2) = 1/2 V(V1) R2 is the one in... -
Roberto Pavani replied to the thread Undergrad Are the basic axioms of thermodynamics demonstrated experimentally?.A cheap thermal camera (~€150, clips onto a smartphone) would be a nice modern upgrade to this experiment. Instead of two point...