selected scientific gif animations:
 
construction of a  horn torus / as transformation
standard dynamic horn torus explanation / all 4 
standard dynamic horn torus inside view / two, nested / inside horn
standard dynamic horn torus colourful
standard dynamic horn torus 'anti' blue
standard dynamic horn torus [rectangular]
dynamic horn torus 2:1 <hexagonal surface>
dynamic horn torus 1:2 (simple graticule)
horn torus set rolling / distinct / fluent
horn torus set full / continuous increase
horn torus rolls along time / moves with speed of light
Lissajous 1:2 / 4 versions / explanation
Lissajous 3:1 / coloured / distinct / ratio 1:1 / ratio 4:1
Lissajous 'resonances' / photon-electron-transition / gluon exchange / gluon flow, external
spiral dive into horn of torus
... compilation  /    /  The Big Hiss (video)