The simplest model of a wind turbine. Fun physical experience at home

ENTERTAINING EXPERIENCES AT HOME
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The simplest model of a wind turbine. Physical experiments

Entertaining experiments in physics

Entertaining experiences at home / Physics experiments for children

Even in ancient times, people learned to use the power of the wind. Many thousands of years ago, people already sailed on sailing ships, plowing the seas and oceans. Windmills were known several millennia ago in China and ancient Egypt.

In Europe, for the first time only in the VIII century, wind turbines appeared for water supply and grinding grain. In Russia in 1914, almost 50 percent of the grain harvest was ground in windmills.

It has been established that when the wind speed doubles, the power on the wings of the wind turbine increases by 8 times. There are many designs of wind turbines. Make a simple model of a wind turbine.

For the manufacture of this model, one coil, several pieces of tin, lath and carnations are enough. The device of the engine is clear from Figure 30. Make oblique slots in the coil, into which insert the blades cut out of thin tin. - The axis is a smoothly trimmed rail about 200 mm long, with a section of 8x8 mm. Round one end of the axle so that it fits freely into the hole of the coil. And so that the coil does not jump out, at the end, on a thin nail, nail a washer. Drive the other end of the nail into the round end of the rail. At the opposite end of the rail, make a slot and fasten a tin or cardboard plate 100-120 mm long and 30-40 mm wide. Now balance the horizontal axis on the knife edge. When you find a position so that the head and tail are mutually balanced, drill a hole for a nail (the vertical axis of the engine) in this place.

The simplest model of a wind turbine

The model should rotate freely around a vertical axis from a light breath. Make the hole a little larger than the thickness of the vertical axis, and put washers on both sides of the horizontal axis. If you lubricate the axles with oil, and increase the number of blades to six, the model will work much better.

You can complicate the model:

The simplest model of a wind turbine

Of course, the model will also rotate from the wind, but the made figure with movable arms and legs will give the impression that it is she who rotates the axis with the blades.

A drawing depicting the simplest windmill wheel, which is easy to make from thick paper or thin tin:

The simplest model of a wind turbine

For the first time in the world, in 1930 in the city of Kursk, we built a wind farm designed by V.P. Vetchinkin and A.G. Ufimtsev. Not far, perhaps, is the time when wind-power dams will be built.

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