The Castle Water Clock 1206

This illustration from Al-Jazari's 1206 manuscript, *The Book of Knowledge of Ingenious Mechanical Devices*, depicts a "Castle Water Clock". The illustration is part of a larger work on engineering and mechanics, demonstrating Al-Jazari's innovative contributions to the fields of science and technology in the 12th century. The image shows a complex clock design with intricate details, including a system of gears, levers, and water vessels, and a visual representation of timekeeping, featuring zodiacal signs and musicians playing instruments. The "Castle Water Clock" is a testament to Al-Jazari's ingenuity and his lasting impact on the history of mechanical engineering.