The Garden of Archimedes  A Museum for Mathematics

Objects of the exhibition
Beyond the compasses

Watt's Mechanism Peaucellier's Mechanism Articulated quadrilateral Double cone Crossed ellipsograph Elliptic vault room Burning mirrors Curves with constant amplitude Double spiral Cycloid I Cycloid II Cycloidal pendulum Rotating paraboloid Rotating hyperboloid Rotating pole Rotating cube Cardioid Universal equation solver Fractals

The exhibit's tracing point draws an ellipse. As the distances of the sliding part of the pen change, it's possible to vary the lengths of the semi-axes.