DIY sundial - master class

Julia Friday
15.09.2015

DIY sundial - master class

If you are a fan of amazing things, know how to grow a crystal from salt, give a second life to old things and create all sorts of crafts, try making a sundial with your own hands, give them an individual design and set in the right direction. Now you can safely brag to your friends - no one really has such a thing!

The sundial became one of the first devices for calculating the time when a person learned to navigate through the shadow of objects on a sunny day. Construction of such a timepiece requires certain physical and astronomical knowledge. Try to create a sundial with your own hands with your daughter or son - the process will seem to you not only fascinating, but also informative for your children.

Types of hours

There are several types of sundials. All of them consist of 2 main parts: the frame, or the dial, and the gnomon - the hands. The difference in clock appears at a different angle Kadran installation.

After reviewing the classification, you will realize that not all types can be made with your own hands.

Equatorial clock

This watch got its name due to the lines of installation details. As a rule, the frame is set at the angle of the latitude in which the device is located. Thus it turns out that the plane of the frame is parallel to the Earth's equator, and the line of the gnomon is parallel to the Earth's axis.

Equatorial clock

The disadvantages of this type of watch are that they show the correct time only in certain seasons. In the northern hemisphere, this is the period from the spring to the autumnal equinox, in the southern hemisphere the opposite.

Horizontal clock

This type is established parallel to the flat line of the horizon so that when crossing the lines of the dial and the gnomon, a line parallel to the noonday is obtained.

Horizontal clock 

In this case, the gnomon is installed in the same way as on the equatorial clock - at an angle equal to the latitude of the location.

Vertical clock

Such a sundial is harder to make with your own hands than the first 2 types. During the installation of the vertical time determinant, the gnomon is located parallel to the horizon, strictly in the direction to the geographical south for the northern hemisphere.

Vertical clock  

Hour divisions can be placed on the frame only symmetrically if, with this position, the gnomon is strictly perpendicular to the dial.

There are also lesser known varieties of the sundial: polar, conical, cylindrical and ball. Because of their appearance, they are often more decorative than practical, and are used to decorate the place where they were installed. For example, spherical chronometers often complement the design of children's bedrooms - they have no sharp corners, and therefore the devices are safe for children.

Sundial: master class

Try to make a sundial with your own hands with your child. This lesson will help you explain in detail to your child how to find out the time on such clocks, why they are so arranged and how one species differs from another.

Equatorial clock

First of all, try to design your own equatorial sundial - the simplest in execution.

You do not need to count the number of hourly divisions on the dial and the degree measure of each of them - on the Internet you can find many templates for personnel.

Sundial dial 

  • Before you start drawing layout, calculate the length of the sides.In the image you see the angle α, which is calculated using the following formula: 90 degrees minus the degree measure of the geographical latitude in which you are. Accordingly, the opposite angle will be equal to: 90 degrees minus the angle α.
  • Choose an arbitrary value for the side C - this side will be the side of your dial.
  • The side of this layout is represented as a right triangle. Therefore, knowing the hypotenuse (side C) and all the angles of the triangle, we can calculate the remaining sides using the following formulas: side A equals side C multiplied by the sine of angle α, and side B - side C multiplied by the cosine of angle α.

Scheme

According to the data obtained with your own hands, draw the layout of the device on a sheet of the required size, cut and glue it. Gnomon in this case can serve any stick of the required diameter. Just make a hole in the desired location and set the gnomon perpendicular to the dial.

Sundial 

Install the sundial on the windowsill so that the gnomon is heading exactly north. The direction you can calculate with the help of a compass.

Horizontal clock

Making your own horizontal sundial is even easier than equatorial ones. Choose a hard material so that later the dial is easy to draw: plastic, cardboard or thin wood.

  • Make a round or square dial.
  • Make a triangular gnomon. Before you start, calculate its parameters: one angle should be equal to 90 degrees, and the other - the latitude in which the clock is located.
  • Place the gnomon in the center of the dial.
  • Put the clock on the window sill so that the lower extreme angle of the gnomon looks exactly to the south.

Take a watch. Every hour mark the position of the shadow frame on the dial. After you mark all 12 points, draw the dial with your own hands.

Horizontal clock 

After you have learned how to make a tabletop sundial with your own hands, try to make a pocket sundial. This will help you next video tutorial.

 

Horizontal clocks can be enlarged, decorated and used as a decorative element of your flower bed or garden. For example, you can mold the gnomon and each number on the dial with your own hands and paint to match the colors growing around.And you can make a device on the basis of a wooden saw - then the best decoration will be the burning of figure-shaped wood.


Take it to yourself, tell your friends!
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  • DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class

    DIY sundial - master class