Question

description about history of spherical mirrors in human civilization

Answer 1

1] one of the earliest  famous example  is from the greek  archimedes  who burn ship  with parabolic  mirror.2] spherical mirror are fine for work where the incoming rays  are not parallel .reflector  in lamp  housings  for shaving mirror in catadiaoptic. telescope  are some.these are example of history of spherical mirror in human civilization .................................................