MIC in Bolzano
One of the ten signposts of the MIC project "Maths in the city".
. This one is placed on the walk by the side of the river Isarco, where a wind rose shows the distances from Bolzano of some european towns, thus givingthe occasion for some considrtions of spherical geometry.
You can see another one of the ten signposts.
The image belongs to the sections...:
Spherical geometry (Other geometries)
The maths signposts in the streets (Exhibitions with matematita)