Mechanism of a Water-Powered Organ

The engraving illustrates a water organ mechanism with a central waterwheel being struck by a forceful jet of water from a cloud-like nozzle. The wheel is mounted on a central horizontal axis connected to two drums studded with metal pins; as these drums rotate, the pins push levers that actuate two separate sets of vertical organ pipes. Below the waterwheel, a square tank collects the falling water, which is then siphoned through a tube back toward the pipes, suggesting a continuous circulation system. The style is that of a 17th-century technical plate, featuring precise cross-hatched shading and clean structural lines.

This illustration originates from Robert Fludd's encyclopedic work 'Utriusque Cosmi Maioris scilicet et Minoris metaphysica, physica atque technica Historia' (1617–1621), specifically representing the integration of natural elements into mechanical and musical theory during the late Renaissance.