In life, people every day to feel the wind, but know in what form the wind?
Wind is caused by air flow of a natural phenomenon, it is caused by the sun radiate to heat up. The sun on the earth's surface, make the earth's surface temperature, the surface of the heated air is light and to rise. After rising hot air, low temperature cold lateral inflows, the rising air for cooling are heavy landing, because the surface temperature is higher and heats the air to rise, the air flow is generated.
Due to the different size of wind speed, direction and humidity, can produce many kinds of wind. Wind, wind, heavy wind, wind, storm, and hurricanes, these common types of wind, beaufort scale wind respectively seven, eight, nine, ten, eleven and twelve grades.
Wind speed is refers to the horizontal distance of air flow in a unit time. According to the phenomenon caused by the wind on the ground objects the size of the wind can be divided into 13 class, called the wind level..
Because the wind will produce a great kinetic energy movement. Can the wind kinetic energy into electrical energy through wind power.
Wind power as a kind of clean renewable energy, more and more get the attention of the countries all over the world. But because the wind is strong, and can cause huge damage to the environment, so people since ancient times to the wind a love-hate relationship.