Cycle 2 Week 9

A sundial is a clock that uses the position of the Sun to indicate the time. Typically a rod casts a shadow upon a plane or surface. On this surface are found markings that indicate the time by the position of the shadow. There are several types of sundials. Each type serves the same purpose: to tell time by the position of the Sun. But the methods used to extract the data from each sundial are different.The sundial is responsible for telling us what time of the day it is. Basically, the sun casts a shadow on a triangular pointer called a gnomon. This is pronounced like "no-men." The sundial looks like a clock with numbers all the way around it. The sun's shadow reveals the hour of the day. Each sundial must be made specifically for the region it is telling the time for as the sun shines differently around the globe.