Question

history of spherical mirrors human civilization

Answer 1

Haytham discussed concave and convex mirrors in both cylindrical and spherical geometries, carried out a number of experiments with mirrors, and solved the problem of finding the point on a convex mirror at which a ray coming from one point is reflected to another point. 

Answer 2

spherical mirrors were once made up plastic, it was used to point towards to the opponent war teams (: then they changed, as what we see then today (:.