Sundial Photos and Premium High Res Pictures

Sundial History and Basics sundial A sundial is a device that indicates time by using a light spot or shadow cast by the position of the Sun on a reference scale As the Earth turns on its sundial If a sundial is to read civil time an adjustment must be made to allow for its eastward or westward displacement in longitude from that of the meridian of the

sundial As opposed to a normal sundial, an Analemmatic Sundial simply corrects for the motion of the Earth as it travels in an ellipse, not a circle, around the Sun