Wind is air that we breathe and make into carbon dioxide. Wind is the flow of air and gasses that compose an atmosphere. It is made of air molecules that are in motion on the earth. The different density between the two air masses lead to wind plus the different heating between the poles and the equator lead to the development of the jet stream. Winds are classified by speed the types of forces that cause them, the region on witch they occur.
Winds speeds are measured over a ten minute time frame. Wind speeds have various names associated with their average strength, like a breeze, gale, storm, hurricane, and typhoon. It has inspired mythology, a changing in history, expanded the range of travel and warfare. It’s provided a power source for mechanical work, electricity, and recreation. The first scientific description of the cause of wind was in the seventeenth century.
Evangelista Torricelli was the Italian physicist who discovered it. ” Winds are produced by differences of air temperature, and hence density, between two region of the Earth.” An anemometer measures wind speed either directly with rotating cups, or indirectly with pressure differences. Then in Mythology wind was thought to be one or more wind gods. Some cultures wind was an expression of the supernatural. The bible talks of the winds blowing from the four quarters of heaven; {ps. 18:10; 135:7} describes the wind as a divine power.
The wind has also played a large part in transportation involving sailing on the sea, planes with landing and taking off and lastly hot air balloons and blimps. Wind power is produced in wind farms by a three bladed wind turbine. At the end of 2008 a nameplate capacity world wide was 121.2 gigabytes. In seven countries it has achieved high levels of penetration accounting for 19% of electricity produced in Denmark, 11% in Spain & Portugal, and 7% in the republic of Ireland and in Germany in 2008. wind power is the conversion of wind energy into a useful form such as electricity.
It is growing rapidly and has doubled in the last three years between 2005 and 2008. Wind power today is generaly used for electricity. It is non-dispatchable, meaning it must be taken when available and other resources like hydroelectricity must be used to match suply with demand. Humans have been using the power of wind for about 5,00 years. Architects have used wind-driven ventilation systems in building since ancient times. Evidence shows that the ancient Sinhalese utilized monsoon wind power to power furnaces as early as 300 b.c.
