Man markeert op ruit het punt waar hij een object ziet door de ruit heen 1679

Sébastien Leclerc's "Man markeert op ruit het punt waar hij een object ziet door de ruit heen" (1679) is an instructional etching that demonstrates how to measure an object's position through a window. The detailed illustration features a figure holding a measuring tool, focusing on the intersection of a line of sight and the windowpane. This engraving, part of a larger series, highlights Leclerc's expertise in technical illustration and the growing interest in scientific observation during the 17th century. The work offers a glimpse into the scientific methods of the period, where precise measurement and representation were crucial for understanding the world around us.