1 What it's about

Kinematic play with 14 congruent regular heptagons

2 14 Heptagons

The 14 congruent regular heptagons slide along their edges (Fig. 1).

Fig. 1: 14 regular heptagons

The centers of the heptagons slide on two regular heptagons rotated relative to each other by π/7 (Fig. 2).

Fig. 2: Trajectories of the centers

The outer edges of the heptagons slide on two regular heptagons rotated relative to each other by π/7 (Fig. 3).

Fig. 3: Frame

Weblinks

Hans Walser: Bewegte Dreiecke

Hans Walser: Moving Triangles

Hans Walser: Bewegte Fünfecke

Hans Walser: Moving Pentagons

Hans Walser: Bewegte Quadrate

Hans Walser: Moving Squares