A windmill is an equipment which exploits the energy from the wind to generate other forms of useful energy such online purchase viagra as electricity. They are also popularly referred to as wind turbines specifically when referring to the types that are used to generate electricity. Levitra When it comes to generating power, windmills are seen as highly reliable and useful. A windmill is comprised of a set of sails that are attached to a central axis that is designed to revolve when it comes in contact with wind.

Windmills transpired from the need for stae-of-the-art and environmentally friendly means of harnessing energy. They have been in existence from around the fifth century AD where they were being created in Persia. The first forms were utilized as grinding mills but they have advanced immensely over the years. The purposes of windmills and the variety of styles continue to change along with time and technology. This is evident when you look at how they were operated compared to how they are maneuvered now. They once required the attention of someone continuously in order for them to work efficiently. Nowadays, windmills are controlled by computers.

The use of windmills has spread to various countries since it is economical and it generates energy without emitting green house gases. Windmills use free energy to produce another type of energy and that has resulted in the use of windmills to become accepted and widespread. They are also quite eye-catching and in some countries they are seen as an attraction. In Holland and Spain for instance, windmills form a part of their attraction. They have a wide range of uses, some of which are:

1.Water pumping

2.Grain grinding

3.Generating electricity

The total power that is generated by a windmill is dependent on certain factors. First of all, its size is a major factor. The bigger the blades are and the more blades included on the axis causes the production of more energy. Secondly, its position or location. Windmills work properly in flat areas and they have to be used where there is wind to drive the blades. Finally, the amount of windmills that are used to produce power is important. The more windmills used, the more power will be produced. On the other hand, a single windmill can generate a significant amount of energy.

A wind mill is comprised of several parts so as to effectively generate energy. There are blades which are responsible for most of the work. These blades are connected to a body consisting of a very long pole. The height of the pole is necessary to the overall operation of the windmill since it elevates the blades at higher heights for improved access to wind. It is very important that a windmill is installed on a very strong and sturdy pole or tower as the stronger and higher they are, the better they function. Windmills are classified according to the kind of axis that they have. The most common type is the horizontal axis which has three blades. The other type is those that have a vertical axis resembling an egg beater. This model has a benefit of operating successfully even when it is not facing the wind.

How a windmill operates is simple. The blades are very crucial in the generation of energy because they do the majority of the work. The blades instinctively revolve when they come into contact with wind. This motion that is created in sequence creates energy which is then transmitted from the blades through the shaft and then to the generator. When it reaches the generator, it changes the energy into electricity which has a benefit over other methods of electricity production since it is environmentally friendly.

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Category: Science
Keywords: Windmill, wind power, alternate energy sources