Question

Hey guys !!!!!
My question is
write the process while to make a sun dial​

Answer 1

How Do Sundials Work?

In the morning, a shadow points to the west as the sun rises in the east, gradually getting shorter and moving towards the north. After noon, the shadow points eastwards, steadily lengthening as the sun moves towards sunset in the west. A sundial takes advantage of this by using a device called a gnomon to cast a shadow, with a dial and markings allowing you to gauge the time.

A sundial also depends upon your position on the earth and it can only be used at a certain longitude and latitude. You cannot move away from your latitude and, although you can move along it, you will need to add or subtract four minutes for each degree moved, depending upon the direction.

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Making a Simple Sundial

This is the most basic sundial, and depends upon the ancient principle of placing a stick in the ground and using the shadow to tell the time.

Sundial in thyme garden at Minnesota Landscape Arboretum. (Creative Commons)

You'll need:

A flat wooden board or stout cardboard: Ideally, the surface should be painted white; if it isn’t, you can always stick a sheet of paper to it.

A long nail

A hammer

A pencil

A sunny day

To Make Your Sundial

First thing in the morning, place the board on a flat surface in a spot that receives sun all day long.

Make sure that the board cannot move by placing a couple of rocks to weigh it down if the weather is windy.

Hammer the nail as close to the center of the board as you can. It doesn’t need to go too far in; just enough to make sure that it is sturdy.

Where the shadow of the nail head falls on the surface, make a mark. Ideally, you want to do this at the beginning of the hour: Six o’clock, seven o’clock and so on.

Every half hour or every hour, repeat the process and carry on until sundown.

Without moving the board, draw a line with the ruler connecting the marks to the nail at the center.

You can now tell the time at your longitude and latitude