Mathematicians prove existence of Kaleidocycles then unlock their exact motion

Kaleidocycles are flexible polyhedral structures composed of rigid tetrahedra connected along their edges to form rotating rings. Each tetrahedron is a solid 3D polygon with four triangular faces (like a triangular pyramid), and the hinges connect neighboring units, allowing smooth rotational movement of the ring without distorting the individual pieces. These mechanisms are often compared to rings of bubbles blown by dolphins.