1 What it's about

A kinematic experiment with ten congruent regular pentagons

2 Ten Pentagons

The ten congruent regular pentagons slide along their edges (Fig. 1).

Fig. 1: Ten regular pentagons

The centers of the pentagons slide on two regular pentagons rotated 36° relative to each other (Fig. 2).

Fig. 2: Trajectories of the centers

The inner edges of the pentagons slide on two regular pentagons rotated 36° relative to each other (Fig. 3).

Fig. 3: Inner edges

Weblinks

Hans Walser: Bewegte Dreiecke

Hans Walser: Moving Triangles

Hans Walser: Bewegte Quadrate

Hans Walser: Moving Squares