We've used the wind as an energy source for a long time. The
Babylonians and Chinese were using wind power to pump water for irrigating
crops 4,000 years ago, and sailing boats were around long before that. Wind power was used in the Middle Ages, in Europe, to grind corn, which is
where the term "windmill" comes from. The Sun heats our atmosphere unevenly, so some patches become warmer than
others. These warm patches of air rise, other air blows in to replace them
- and we feel a wind blowing. We can use the energy in the wind by building
a tall tower, with a large propellor on the top.
Check out the links below to learn more about the possibilities of wind
power:
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