Vertical axis wind turbines (VAWTs) are a relatively new kind of energy producing system that's suitable for home and urban ...

The modern turbine has blades that keep turning even if there's not that much wind. That's because they're perfectly shaped to capture the wind's kinetic energy. The blades spin a shaft ...

The modern turbine has blades that keep turning even if there's not that much wind. That's because they're perfectly shaped to capture the wind's kinetic energy. The blades spin a shaft ...

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Wind is the movement of air from an area of high pressure to an area of low pressure. In fact, wind exists because the sun unevenly heats the surface of the Earth. As hot air rises, cooler air ...