A sphere
A slab in plexiglass (or in similar material) with a circular hole with the diameter of the sphere that can be the "ruller" to draw a sphere.
© matematita
The image belongs to the sections...:
Spherical geometry (Other geometries)
A slab in plexiglass (or in similar material) with a circular hole with the diameter of the sphere that can be the "ruller" to draw a sphere.
© matematita
The image belongs to the sections...:
Spherical geometry (Other geometries)