Wind+Energy

Historian Wind is caused by the uneven heating on the earths surface. Wind energy was first harvested centuries ago, when windmills were used for powering milestones, pumps, and forges. The first windmills were developed in Persia. The Babylonians and Chinese used wind power to pumpwater for irrigating crops 4000 years ago. The Dutch used windmill primarily for pumping excess water off land that was flounded. They connected the mill to a multi story tower with seperate floors devoted to grinding grain, removing chaff and storing grain. Also wind energy propelled boats along the Nile River as early as 5000 B.C. When windmillls first started they were mostly wooden with a postmill structure. A post mill structure is a large upright post on which the mainstructure the body is balnced. By mounting the body of themill this way this lets the mill rotate to the variable wind direction. Wind energy is know used all over the world primarily forgenrating electricity. The first windmill built to genrate electricity was in Scotland in 1887. There are over 200,000 windmills working throughout the globe. There are also wind farms which uses groups of wind turbines to produce electrical energy. One wind farm is built in Antartica to reduce there reliance of diesel.In 1999 Pennsylvania had no wind energy at all in the the mid atlantic but now we have enough power to generate 38,000 homes. [] [] http://www.darvill.clara.net/altenerg/ http://www.altenergy.org/



Ecnomist

wind is basically just air in motion​.

uneven heating of the atmosphere. wind also plays a key role in the production of wind, because the sun produces most of the solar energy. wind energy is not a constant source because it is not stable, because the wind cannot produce enough electricity to be a constant supplier. it depends on the blowing of the wind in a specific area, and if there isnt enough wind, it cant produce enough power. it is a form of green energy, which is also a renewable source that is changed into electricity.
 * Wind energy** is similar to **solar energy, caused by the suns heat, the rotation of the earth, in** **different surfaces, such as the earth.** It is a very common airway for birds. It doesnt pollute the air, like places that use fossil fuels, and it doesn't cause acid rain. It helps farmers by making it easier to grow crops. A bad thing about the razors in the turbines is that the birds fly into them. Wind energy helps conserve electricity which uses up the earths recources. Wind energy causes uneaven heating by generating more heat by the equator. it can do do more work for us such as pumping water. Wind turbines **will** ruin the view of the ocean,ruin the visual impact on landscapes, and will be harful to deserts;can cause erosion. doesnt produce any hazerdous waste,will help **prevent global warming,** and will reduce health care costs. wind is caused by the

Engineer

Wind is produced from the uneven heating of earth's surface. The wind cycle is when the sun heats the surface faster than water. As the hot air expands and rises the cold air sinks and takes the warm air's place which creates wind.

Wind is now used to make electricity. Windmills, also called wind turbines, are use to create electricity from the winds kinetic energy. Windmills are created with three or more blades which get moved in a circular motion by the wind.

There are at least three different types of windmills or wind turbines. There are horizontal, vertical, and aermotor windmills. Aermotor windmills are used to pump water out of a well, river, or pond.



Vertical windmill

​ Aermotor windmill

Local Expert It's a small energy that the electricity is controlled by a remote,and it connects all through out the the town. It is enviromental and economic sense and its economy safe. Wind energy also brings a great deal of satisfactory. The most affective time would be in the summer when it's nice and the winds are steady. Some pros are: farmers make more income off it, energy does not cost much to make produce jobs. Here are some cons: wind turbines can be destroyed when hit by a severe storm/lightning, wind energy does not always work, because it all depends on how strong the wind is, and the weaker/slower the wind is the louder the sound from the wind turbine is.