Trouble understanding Landau & Lifshitz writing about Lagrangians and Galilean Relativity
94173
Deriving the Lagrangian for a free particle
30683
$F=ma$ calculation taking relativity into account?
126388
Derivation of Lorentz Transformations
109795
Layman's explanation and understanding of Einstein's field equations
46050
How to describe arbitrary accelerations in special relativity
89479
Galilean invariance of a subset of Maxwell equations
153727
Constant term in Lagrangian
27296
Derivation of Lagrangian of electromagnetic field from Lorentz force
78258
How Special Relativity causes magnetism
82624
"Newtonian limit" property of special relativity
106863
Special relativity and imaginary coefficient of the time coordinate
48930
Least-action classical electrodynamics without potentials
44239
Why the extra term $\frac{1}{2}(\partial_{\rho}A^{\rho})^2$ in the photon Lagrangian?
112073
What does a Lagrangian of the form $L=m^2\dot x^4 +U(x)\dot x^2 -W(x)$ represent?
17451
Expanding electromagnetic field Lagrangian in terms of gauge field
72169
Galilean invariance of the Schrodinger equation
7555
Why do we consider Lagrangian densities in field theory (as opposed to Lagrangians as in point mechanics)?