“Kitten” 1968 computer animation

Here is a cool computer animation generated in 1968 on Russian computer BESM-4. 

Almost 40 years ago, 1968â€¦ Group under the management ^[Nikolaya] of Nikolayevich Constantinov creates the mathematical model of the motion of animal (cat).  Machine BESM-4, running the written program of the solution of ordinary (in the mathematical sense of word) differential equations, sketches the cartoon â€œkittyâ€, which contains even on the contemporary measures the surprising animation of the motions of cat, created with computer.