File:ToupieCycloide.ogv

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ToupieCycloide.ogv ‎(Ogg Theora video file, length 9.6 s, 512 × 384 pixels, 1.23 Mbps, file size: 1.4 MB)

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Description
Français : Lorsque sa vitesse de rotation propre est élevé, une toupie ou un gyroscope est animé d'un mouvement de précession, alors que la nutation est confinée entre deux valeurs. Si les conditions initiales sont bien choisies, la toupie peut être animé d'un mouvement qui décrit une cycloïde sur une sphère. L'animation présente ce cas. Pour des raisons de lisibilité, la rotation propre représentée est plus faible dans l'animation que la valeur qu'elle devrait avoir en réalité. D'autre part, le calcul a été fait pour que la cycloïde se referme exactement au bout d'un tour, ce qui est une situation exceptionnelle.
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Author Theon

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I, the copyright holder of this work, hereby publish it under the following license:
w:en:Creative Commons
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Date/TimeThumbnailDimensionsUserComment
current14:46, 20 April 20209.6 s, 512 × 384 (1.4 MB)Theon (talk | contribs)Uploaded own work with UploadWizard

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Transcode status

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Format Bitrate Download Status Encode time
VP9 360P 353 kbps Completed 09:22, 17 July 2024 7.0 s
Streaming 360p (VP9) Not ready Unknown status
VP9 240P 178 kbps Completed 09:21, 17 July 2024 5.0 s
Streaming 240p (VP9) 184 kbps Completed 20:56, 20 December 2023 4.0 s
WebM 360P 310 kbps Completed 17:55, 2 December 2023 2.0 s
Streaming 144p (MJPEG) 957 kbps Completed 09:09, 10 November 2023 1.0 s

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