wind power

Today we use wind turbines to generate electricity . Wind is a form of solar energy. wind power plants can not produce power on demand there output depends on how hard the wind is blowing. the more tower s the more wind and the electricity more we can make .
The Babylonians and Chinese were using wind power to pump water over 4,000 years ago . And before that it sailed boats . wind power was used in the middle ages in Europe to grin corn.

who it works

step one:The sun heats our atmosphere so some patches are hotter than others .step two: theses warm patches of air rise and it replaces it and that's how we feel the air . step 3 we can use the wind energy by building a large tower and propellers. step 4 the wind bows the propellers spin which cause electricity .pros : it is free ,needs no fuel. produces no gas . cons: kills birds ,can affect television reception if live near by ,can be Nosie