Idea behind Making a Sundial

You may heard about the term "Noon". I bet you might heard of this term. Noon is a way to say it is exactly 12 hrs. The sun at its highest point at noon or evening.  Therefore, when the sun is directly above or high in the sky above you, then the day is at noon. You can tell when it is noon if you don’t have any shade on sunlight.

Sundial is just one way is to visualize it, the dome of the sky or heaven is divided into sections. As the sun rises in the east and move to the west in different blocks of the sky within each hours. These  movement of sun in sky gives us about 21 ordinary day time hours in summer and 12 hours of average daytime time all over the year. So if you see the sun in the sky in the morning and when it close to the West, you can see it is afternoon.

The eastern side of the dome of the sky shows imaginary time of 6AM to 12 AM. The western part of sets the rest 6 hours from 12 PM to 6 PM. Share the idea of heaven, we can split the sky in 12 sections representing the 12 hours. Although it is difficult to imagine on March 12, representing the divisions on each side and then think of splitting into two parts.

You can also use the stick in the ground and measure the time from the shadows. This is called the shadow of the stick. Even as the gnomon. Shadow of the gnomon indicates the time. Mark the shadow on the ground working every hour. This will help you know when this time of year.

It is very easy to make a sundial of your own. Just draw a circle on white cardboard or paper with a compass. Make sure you mark the center of the circle.  Bring a vertical gnomon in the middle of the circle. Alternatively, a piece of cardboard, a pencil, pipe cleaner, floor, etc. can be used for the gnomon. Then find a sunny spot to place the sundial. Look at all hours and make a shadow on the edge of the circle at every hour.  Mark it with roman numbers that sync with the shadow; and you get your own sundial.

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