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When we talk about renewable energy, normally we will relate it to the power from sun, or better known as solar power. But, other than the sun, wind is another source to generate renewable energy. Let's explore how does wind power work in generating energy that can be used to replace the non-renewable fossil-fuel energy.
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| Picture: sbc-technologies.com |
Back to the basic, the wind power is actually a form of solar power because the wind is generated due to the heating effect from the sun. When the sun heats the earth's surfaces at different speed on sand, water, stone and various types of soil, these surfaces absorb and release heat at different rates, creating different temperatures. At a certain temperature, the hotter air begins to rise from the surfaces very quickly because it is lighten than the equal volume of cool air. As the results, the hot air rises and reduces the atmospheric pressure near the earth's surface, which draws cool air to fill the gap the hot air leaves behind. This action causes air movement or is known as Wind.
