Using a quadrant with a plumb bob to calculate the height of a tower by triangulation. From Sebastian Munster 'Rudimenta Mathematica', Basle 1551. Woodcut

- Image ID: D96PD8
Using a quadrant with a plumb bob to calculate the height of a tower by triangulation. From Sebastian Munster 'Rudimenta Mathematica', Basle 1551. Woodcut
World History Archive / Alamy Stock Photo
Image ID: D96PD8
Using a quadrant with a plumb bob to calculate the height of a tower by triangulation. From Sebastian Munster 'Rudimenta Mathematica', Basle 1551. Woodcut