File:Rotation-Precession-Nutation.gif

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Rotation-Precession-Nutation.gif(558 × 211 pixels, file size: 2.09 MB, MIME type: image/gif, looped, 101 frames)

Captions

Captions

Visualization of rotation, precession, and nutation

Summary[edit]

Description
English: The dynamics of a rigid sphere can be surprisingly complicated. In fact, beside rotating around an axis, the sphere can also precede (i.e. the axis of rotation is itself rotating) and nutate (i.e. the axis of rotation oscillates back and forth).
Date
Source https://twitter.com/j_bertolotti/status/1187677396268453888
Author Jacopo Bertolotti
Permission
(Reusing this file)
https://twitter.com/j_bertolotti/status/1030470604418428929

Mathematica 11.0 code[edit]

p1 = Table[
   Grid[{{
      MapAt[GeometricTransformation[#, EulerMatrix[{0, 0.4, 2 t}]] &,
       Show[
        SphericalPlot3D[1, {\[Theta], 0, \[Pi]}, {\[Phi], 0, 2 \[Pi]}, Boxed -> False, Axes -> False],
        Graphics3D[{Black, Thick, Line[{{0, 0, -1.3}, {0, 0, 1.3}}]}],
        PlotRange -> {{-1.2, 1.2}, {-1.2, 1.2}, {-1.2, 1.2}}, 
        PlotLabel -> "Rotation", LabelStyle -> {Black, Bold}
        ], {1}]
      ,
      MapAt[GeometricTransformation[#, EulerMatrix[{t, 0.4, 2 t}]] &,
       Show[
        SphericalPlot3D[1, {\[Theta], 0, \[Pi]}, {\[Phi], 0, 2 \[Pi]}, Boxed -> False, Axes -> False],
        Graphics3D[{Black, Thick, 
          Line[{{0, 0, -1.3}, {0, 0, 1.3}}]}],
        PlotRange -> {{-1.2, 1.2}, {-1.2, 1.2}, {-1.2, 1.2}}, 
        PlotLabel -> "Precession", LabelStyle -> {Black, Bold}
        ], {1}]
      ,
      MapAt[
       GeometricTransformation[#, 
         EulerMatrix[{t, 0.4 + 0.1 Sin[8 t], 2 t}]] &,
       Show[
        SphericalPlot3D[1, {\[Theta], 0, \[Pi]}, {\[Phi], 0, 2 \[Pi]}, Boxed -> False, Axes -> False],
        Graphics3D[{Black, Thick, 
          Line[{{0, 0, -1.3}, {0, 0, 1.3}}]}],
        PlotRange -> {{-1.2, 1.2}, {-1.2, 1.2}, {-1.2, 1.2}}, 
        PlotLabel -> "Nutation", LabelStyle -> {Black, Bold}
        ], {1}]
      }}]
   , {t, 0, 2 \[Pi], (2 \[Pi])/100}];
ListAnimate[p1, {10}]

Licensing[edit]

I, the copyright holder of this work, hereby publish it under the following license:
Creative Commons CC-Zero This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

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Date/TimeThumbnailDimensionsUserComment
current12:52, 30 October 2019Thumbnail for version as of 12:52, 30 October 2019558 × 211 (2.09 MB)Berto (talk | contribs)User created page with UploadWizard

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