The Sun Dial would “project” the time, on to numbers using a parabolic mirror. When the sun is out, a ray of light would indicate the time of day. During the noon hour, the ray of light would shoot straight down.
The Sun Dial would “project” the time, on to numbers using a parabolic mirror. When the sun is out, a ray of light would indicate the time of day. During the noon hour, the ray of light would shoot straight down.