This is a strong wind. BY: MarĂa HerrĂĄiz, 3rd
The wind is strong in autum. BY: Fernando PĂŠrez, 3rd
The wind power is good. BY: Daniel Iradier, 3rd
THE WIND POWER IS CLEAN. BY: Julian Vicol, 4th
The wind power does not become exhauted. BY: Zahara Montero, 4th
Wind power does not contaminate BY: MJRM. English teacher
Wind energy is the energy from wind and it is transformed into other useful forms for human activities. The wind comes from the Latin term aeolicus, belonging or relating to Aeolus, god of the winds in Greek mythology. Wind energy has been used since antiquity to move the ships powered by sail or power machinery of mills to move their blades. Today, wind energy is mainly used to produce electrical energy by wind turbines. Wind energy is an abundant resource, renewable, clean and helps reduce emissions of greenhouse gases from power plants to replace fossil fuel-based, which makes it a kind of green energy. However, the main drawback is its intermittency
Fotos de la galería de Google
BY: Virginia Abarca, Raquel Castillejo e Inés Bodoque, 6th level. Lucía Martínez, 5th level. Roberto Castillejo, Zaida Saiz Samuel Palomares y Esther Valiente, 4th level.
This is an ancient windmill. BY: MJRM. English teacher.
An ancient windmill has got four sails. BY: Jessica ArĂŠvalo, 4th
The ancient windmills have four sails. BY: MarĂa Briones, 3rd
The ancient windmills grind wheat. BY: Beatriz Mont贸n, 4th
A windmill has a single use. It converts wind energy into mechanical energy.. That mechanical energy can then be used for a multitude of things. Some of the common uses are: • Powering Generators to create electricity . • Running a mill to grind grain . • Running pumps to move water . Driving all sorts of mechanical devices for manufacturing. Today, wind energy is mainly used to generate electricity. Wind is a renewable energy source because the wind will blow as long as the sun shines.
BY: Virginia Abarca, Raquel Castillejo e Inés Bodoque, 6th level. Lucía Martínez, 5th level. Roberto Castillejo, Zaida Saiz Samuel Palomares y Esther Valiente, 4th level.
These are modern windmills. BY: Erik Todorov, 4th
THE WINDMILLS ARE VERY HIGH. BY: Ovidio D. Cosma, 4th
WINDMILLS ARE GREY OR WHITE. BY: Sandra Barambio, 3rd
Windmills are on the top of the mountains. BY: Hugo Barambio, 3rd
Modern windmills have three sails or arms. BY: Nerea Huete, 3rd
THE SAILS TURN. BY: Blanca Ferrer, 4th
MODERN WINDMILLS PRODUCE ENERGY BY: Alberto Escutia, 4th
The windmills produce wind power. BY: Pablo Gonzรกlez, 3rd
In Castilla La Mancha, it´s windy. BY: David Sáiz, 3rd
IN CASTILLA LA MANCHA, THERE ARE MANY WINDMILLS. BY: Judith Ruiz, 3rd
WEATHER VANES A weather vane, also called a wind vane, is a movable device attached to an elevated object such as a roof for showing the direction of the wind. Very often these are in the shape of cockerels and are called weather cocks. Arrows are also popular, but a multitude of designs have been used.
The weather vane must be balanced so that half its weight is on either side of its axis, but also designed so that the momenta about the axis of the areas exposed to the wind are unequal. This unequal momentum causes the vane to rotate to minimize the force of the wind on its surface. The design of the vane causes the end with the smallest momentum to turn into the wind, pointing to the source of the wind. Because winds are named from their source direction, the pointer enables the viewer to name the wind easily. Most simple weather vanes have directional markers beneath the pointer, aligned with the
geographic directions. The pointer must be able to move freely on its axis. Weather cocks, especially those with fanciful shapes, do not always show the real direction of a very gentle wind. This is because the figures do not achieve the design balance required in a weather vane: an unequal surface area but balanced in weight. To obtain an accurate reading, the weather vane must be located well above the ground and away from buildings, trees, and other objects which interfere with the true wind direction. Changing wind direction can be meaningful when coordinated with other apparent sky conditions, enabling the user to make simple short range forecasts.
History
During many centuries, weather vanes have decorated the top of constructions of many countries. The oldest documented weather vane adorned the Tower of Winds in Athens, it was built by Andronicus astronomer during the year 48 A.C. In the IX century A.C., the Pope decreed that the European churches needle had to exhibit a rooster, like a reminder of the prophecy of Jesus who said that “the rooster would not sing, the morning after Last Dinner, until the disciple Peter had denied that he knew him, three times". Due to this history, "weather cocks" have covered churches during centuries. Let us see some examples:
Now, our fantastic drawings:
Mario Galdrรกn 3rd
Alejandro Crespo, 5th
According to the Guinness World Records, the world's largest weather vane is located in Jerez, Spain. A challenger for the tittle of world's gest weather vane is located in Whitehorse, Yukon. Pablo Blanco, 4th