11-21-2016, 12:14 PM
11-21-2016, 01:26 PM
Attractive they may not be but to me the superb pinnacle is captured by the Maxwell equations, followed shortly by the Navier-Stokes equations... this is of course just a personal bias.
11-21-2016, 05:10 PM
11-21-2016, 08:18 PM
(11-21-2016 01:26 PM)Ángel Martin Wrote: [ -> ]Attractive they may not be but to me the superb pinnacle is captured by the Maxwell equations, followed shortly by the Navier-Stokes equations... this is of course just a personal bias.
Agreed! Even though Nature seems to be nonlinear, Electrodynamics is fully captured by the pure linear Maxwell Equations. Also, The Navier-Stokes Equations of Fluid Dynamics are "just" seminlinear. However, the proof of the global existence and uniqueness of smooth solutions to the 3D Navier-Stokes Equation is still lacking, it's a Millenium-Problem! Long time ago I did my math. PhD Thesis on timewise Approximation of the Stokes-Equations (which is the Navier-Stokes without convecive term and thus it is linear). Learned to love this set of Equations! Has been exciting years :-)
11-22-2016, 05:25 PM
11-22-2016, 09:08 PM
(11-22-2016 05:25 PM)Gerald H Wrote: [ -> ]Here's a film of Hannah Fry's choice:
https://www.theguardian.com/science/vide...axies-form
Great! Thanks for sharing!! :-)
11-23-2016, 05:54 PM
(11-21-2016 05:10 PM)BruceH Wrote: [ -> ](11-21-2016 12:14 PM)Gerald H Wrote: [ -> ]Note error in quiz.
Oh yes, well spotted. Everyone knows that it should be \(e^{i\tau} = 1\)
;-)
I think that would be \(e^{i\tau/2} = -1\), (or preferably, \(e^{i\tau/2} + 1 = 0\)), which kinda sorta shows why tau is wrong, i.e., messes up Euler's identity.
11-26-2016, 03:39 AM
I've always felt attracted to transcendental calculations, so I choose:
M=E-e*sin(E)
M=E-e*sin(E)