Wind is simple air in motion. It is caused by the uneven heating of the earth’s surface by the sun. Since the earth’s surface is made of very different types of land and water, it absorbs the sun’s heat at different rates.During the day, the air above the land heats up more quickly than the air over water. 
The warm air over the land expands and rises, and the heavier, cooler air rushes in to take its place, creating winds. At night, the winds are reversed because the air cools more rapidly over land than over water.
In the same way, the large atmospheric winds that circle the earth are created because the and near the earth's equator is heated more by the sun than the land near the North and South Poles. Today, wind energy is mainly used to generate electricity. Wind is called a renewable energy source because the wind will blow as long as the sun shines.
The warm air over the land expands and rises, and the heavier, cooler air rushes in to take its place, creating winds. At night, the winds are reversed because the air cools more rapidly over land than over water.In the same way, the large atmospheric winds that circle the earth are created because the and near the earth's equator is heated more by the sun than the land near the North and South Poles. Today, wind energy is mainly used to generate electricity. Wind is called a renewable energy source because the wind will blow as long as the sun shines.
Wind power is a renewable energy resource, which means that unlike fossil fuels, it can never run out. Wind is a product of the sun heating the earth unevenly. When a warm patch of air meets a cool patch of air, it creates wind.People have been harnessing the power of wind since the first sailboat.The exact date of this invention is unknown, but it is pictured by the ancient Egyptians around 3200 BCE.
Wind power helped Persians pump water and grind grain between 500 and 900 B.C. As cultures harnessed the power that wind offered, the use of windmills spread from Persia to the surrounding areas in the Middle East, where windmills were used extensively in food production. Eventually, around 1,000 A.D., wind power technology spread north to European countries such as The Netherlands, which used windmills to help drain lakes and marshes.The first electricity-generating windmill was built in Scotland in 1887 by Prof James Blyth.
Wind is moving air. We can use the energy in wind to do work. Early Egyptians used the wind to sail ships on the Nile River. People still use wind to move them in sailboats. In the Netherlands, people used windmills to grind wheat. The Pilgrims used
windmills to grind corn, to pump water, and to run sawmills. Today, we use wind to make electricity.
Wind energy is a converted form of solar energy which is produced by the nuclear fusion of hydrogen (H) into helium (He) in its core. The H → He fusion process creates heat and electromagnetic radiation streams out from the sun into space in all directions. Though only a small portion of solar radiation is intercepted by the earth, it provides almost all of earth’s energy needs.
windmills to grind corn, to pump water, and to run sawmills. Today, we use wind to make electricity.Wind energy is a converted form of solar energy which is produced by the nuclear fusion of hydrogen (H) into helium (He) in its core. The H → He fusion process creates heat and electromagnetic radiation streams out from the sun into space in all directions. Though only a small portion of solar radiation is intercepted by the earth, it provides almost all of earth’s energy needs.
Featured Articles
Wind Farm Siting, Installation and ...
Before wind turbines can be installed, the most appropriate location or locations for them needs to be determined. The ...
Before wind turbines can be installed, the most appropriate location or locations for them needs to be determined. The ...Basics of Wind Farms
Throughout history, wind has been used to move grain mills or push the vessels that sailed the seas. However, it was not ...
Throughout history, wind has been used to move grain mills or push the vessels that sailed the seas. However, it was not ...What is a Capacity Factor?
Wind turbines convert the kinetic energy in moving air into rotational energy, which in turn is converted to ...
Wind turbines convert the kinetic energy in moving air into rotational energy, which in turn is converted to ...Basics of Wind Energy Production
In the United States, most wind energy is commercially generated for delivery and sale on the grid. Wind projects vary in ...
In the United States, most wind energy is commercially generated for delivery and sale on the grid. Wind projects vary in ...What is Wind Energy?
Wind is moving air. We can use the energy in wind to do work. Early Egyptians used the wind to sail ships on the Nile River. ...
Wind is moving air. We can use the energy in wind to do work. Early Egyptians used the wind to sail ships on the Nile River. ...