Sundial Mobile Punch - แอปพลิเคชันใน Google Play

How a sundial works 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 sundial Calculating Clock Time from a Sundial

sundial In the history of sundials, the oldest sundial devices came from the ancient Egyptian shadow clock built around 1500BCE The obelisks shadow