From the windmills of yesterday, to the wind turbines of today, the wind has long been harnessed as an energy source. In fact, because it is a clean and renewable resource, the use of this energy is increasing worldwide. In honor of Windmill Day (celebrated the second weekend in May by both the English and the Dutch), here’s an introduction to Wind Power. Learn more at the following sites.
From Windmills to Whirligigs
Meet Vollis Simpson, who exploits the power of the wind to make art. His whimsical windmill- powered whirligigs stand guard over his yard, twirling like giant robotic pinwheels. This virtual tour, created by the Science Museum of Minnesota, showcases a “unique science and art connection to wind.” After you’ve visited the yard (you’ll need Quick Time VR to view the movies) don’t miss the Try These activities for instructions on making a soda-can whirler or parachuting pinwheel.
To convert wind to electricity, the blades of a turbine (a modern windmill) turn a shaft that is attached to a gear transmission box. This transmission box increases the turning speed of the shaft that connects to the generator that creates electricity. California produces more electricity from wind than any other state. And even though California’s wind turbines do not operate year round (the air must be blowing at least twelve miles per hour to generate electricity), California’s turbines generate enough electricity to power a city the size of San Francisco for a year.
“Uneven heating of the Earth’s surface causes the wind to blow. Many societies have long taken advantage of this energy to travel great distances and perform diverse tasks such as grinding, sawing and pumping water. Modern wind turbines using advanced technologies are able to produce electricity for homes, businesses, and even utilities.” For middle- and high-school students, this overview of windy power presents the history, theory and application of wind power today.
- definition of wind power
- wind power prospectus
- wind turbine power - sw mn
- how wind power is generated ppt
- wind power system ppt
- Early History Through 1875
Wind Power’s Beginnings (1000 B.C. – 1300 A.D.) T he history of wind power shows a general evolution from the use of simple, light devices driven by aerodynamic drag forces; to heavy, material-intensive drag devices; to the increased use of light, material-efficient aerodynamic lift devices in the modern era. But it shouldn’t
- Green Empowerment
Myra Lukens, a Green Empowerment volunteer in our Portland office, is a Junior at Columbia River High School in Vancouver, WA. Myra fills us in on some of her wind energy research for the Washington Junior Science and Humanities Symposium in March. Experiments like Myra’s are critical to educating the up-and-coming energy professionals of
- Harnessing the Wind
The wind is renewable energy because it never stops blowing! It flows around the planet pushed on by the uneven heating and cooling of the earth’s surface. It is an endless supply of power, if only we can harness it. As soon as humans took to the ocean in boats they began using wind power
- Wind Turbine History
Wind machines were used in Persia as early as 200 B.C. Wind machines were later introduced into the Roman Empire around 250 AD. However, the first practical windmills were built in Iran around 700 AD. These were vertical axis windmills (VAWM), which had long vertical drive shafts with rectangle shaped blades. Made of six to
- Wind Turbines
Wind Energy in California Leave a Comment The wind is not only useful for kite flying and providing a cool breeze on a hot summer day. The energy of the wind can also be used to perform other kinds of work. The wind’s kinetic energy can be altered into either mechanical or electrical