A rectangular woodcut illustration depicts a coastal or riverside scene. On the left, a large crane or lifting machine stands on a stone quay. In the center and right, several figures in 18th-century attire are gathered near the water, with a small boat visible nearby. In the background, buildings and a sailing vessel appear on the horizon, symbolizing the practical application of hydraulic engineering in trade and maritime construction.

HYDRAULIC

ARCHITECTURE,

Or the Art of conducting, raising, and moving Water for the various needs of life.

786. SINCE Philosophers began wanting to explain the effects of nature, until around the middle of the last Century, they had attributed to the "horror of a vacuum" original: "horreur du vuide"; this refers to the ancient Aristotelian belief that nature "abhors" empty space and will immediately move matter to fill any void., that which was only an effect of the weight original: "pesanteur"; in this context, it refers to what we now call atmospheric pressure. of the air. If they were asked why, upon pulling the piston of a pump A device used to move fluids by mechanical action. or a syringe, the water rises, they