Filmy shot 🪧 on Instagram: "The post features a video from mectolab showing a 3D-printed kinetic device with geared wheels that traces intricate hypocycloid patterns through simple circular rotations, visually capturing the emergence of complex geometry from basic mechanics. With over 4,300 likes and 850,000 views within a day, it sparks engaging replies linking the patterns to Spirograph toys and cellular automata, highlighting public fascination with order arising from repetition. Hypocycloid

Sketch the hypocycloid for a=4 c (the astroid) and find its non... | Filo

👨‍🔬Science Travel on Instagram: "🌀 The Tusi Couple: Linear Motion from Rotational Geometry This mechanism is a specific case of a Hypocycloid where the radius of the inner circle is exactly half that of the outer circle (\bm{r = R/2}). Through Vector Addition, the rotation of the inner circle cancels the lateral displacement of the orbital path. This resolves complex rotational dynamics into pure Simple Harmonic Motion along the diameter. Devised by Nasir al-Din al-Tusi in 1247 to reform Ptol