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 Feb 15 awarded Curious Feb 14 asked Geometric derivation of quantum mechanics from Lagrangian mechanics Mar 9 comment Is there a sensible fully-discretized Hamilton's principle? Second answer linked above has a good pointer: citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.369.391 Mar 9 asked Is there a sensible fully-discretized Hamilton's principle? Feb 19 awarded Tumbleweed Feb 12 awarded Editor Jan 17 comment Tricky question (physics) There is not enough information to solve the problem numerically, exactly as you say. Oct 23 accepted Why doesn't Newton's Second Law include higher-order mass? Sep 27 awarded Popular Question Jan 15 comment Why doesn't Newton's Second Law include higher-order mass? @Qmechanic Is there a compelling reason to start from a Lagrangian/Hamilton's principle? I always thought these were only valid because they "happen" to generate Euler-Lagrange equations that match Newton's law. Jan 14 asked Why doesn't Newton's Second Law include higher-order mass? Oct 25 asked If I roll an elastic plate into a cylinder, does it shrink? Feb 11 awarded Yearling Dec 30 comment Why does the nature always prefer low energy and maximum entropy? Of course, this raises the question of why entropy doesn't also increase into the past. Jun 25 comment Why didn't Newton just propose the 2nd Law and leave it at that? Fair enough, although you wouldn't need to postulate the third law as a separate "law"; it would be a consequence of the symmetries of the potentials you plug in. Jun 25 comment Why didn't Newton just propose the 2nd Law and leave it at that? However the third and second law could be condensed into an Only Law: $m\ddot{q} = -\nabla V(q).$ Jun 24 awarded Scholar Jun 24 accepted what is the 2D gravity potential? Jun 23 comment what is the 2D gravity potential? If their velocities are all also colinear, then yes, I would have expected so... Jun 23 awarded Student