Whistle

An aerodynamic whistle (or call) is a simple aerophone, an instrument which produces sound from a stream of gas, most commonly air. It may be mouth-operated, or powered by air pressure, steam, or other means. Whistles vary in size from a small slide whistle or nose flute type to a large multi-piped church organ.

Whistles have been around since early humans first carved out a gourd or branch and found they could make sound with it. In prehistoric Egypt, small shells were used as whistles. Many present day wind instruments are inheritors of these early whistles. With the rise of more mechanical power, other forms of whistles have been developed.

One characteristic of a whistle is that it creates a pure, or nearly pure, tone. There are many ways to create pure tones, but we restrict the descriptions here to what are called aerodynamic whistles. Strictly speaking, they are fluid mechanical whistles since they occur in gases, such as air or steam, as well as in liquids, such as water. The only difference between them is the fluid density and the sound speed.

Whistle!

Whistle! (ホイッスル!, Hoissuru!) is a Japanese manga series written and illustrated by Daisuke Higuchi, which was adapted into a 39-episode anime television series, broadcast exclusively by Animax across Japan and South Korea.

The manga, which is association football-themed, was published in Japan in Shueisha's Weekly Shōnen Jump, and in English by Viz Media under the Shonen Jump label. The manga was written in homage to the 1998 and 2002World Cup Finals tournaments which took place in France and Japan/South Korea respectively.

Plot

Whistle! is about a middle school boy named Shō Kazamatsuri. He transfers from Musashinomori School to Sakura Jōsui Junior High School for better hopes to make the soccer team, since he never got a game at his old school due to his small stature. Yūko Katori, his teacher, introduces him as a former star of the famed Musashinomori team, causing his classmates to be wrongly ecstatic. Right after that, one of the players, Tatsuya Mizuno, reveals that he was never a regular. In other words, since he never got the chance to play, Shō is a poor player. Shō struggles to improve his skill so he can make the team at his new school and to ignore the drastic disadvantage he has due to his height.

Whistle (2013 film)

Whistle (Kannada: ವಿಜ್ಹಿಲ್) is a 2013 Indian Kannada suspense supernatural thriller film starring Chiranjeevi Sarja alongside Pranitha Subhash directed by Prashant Raj of Love Guru fame. The film is a romantic love thriller story which revolves between an engaged couple, who are chasing their dreams, first of its kind in Kannada Film Industry. It is a remake of Tamil movie Pizza, blockbuster of 2012. Notable directors Guruprasad and Chi. Gurudutt appear in the supporting roles in the film.

Plot

A pizza delivery boy lands in a mysterious circumstance and it works a dramatic change in his life.

Cast

Soundtrack

Release

Whistle released on 12 July 2013 all over Karnataka in about 75+ theatres and PVR Cinemas in Delhi, Chennai, Pune, Mumbai and Hyderabad. Whistle was made on a decent budget and it collected Rs. 3.7 million in the first day itself and is having 70% occupancy in all theatres across Karnataka.

Metal roof

A metal roof is a roofing system made from metal piece, or tiles. It is a component of the building envelope.

Metal roofs protect buildings.

In the United States, metal comprises 10% of the overall residential re-roofing market.

History

Copper has played a significant role in architecture for thousands of years (see: Copper in architecture). In the 3rd Century B.C., copper roof shingles were installed atop of the Loha Maha Paya Temple in Sri Lanka. And the Romans used copper as roof covering for the Pantheon in 27 B.C. Centuries later, copper and its alloys were integral in European medieval architecture. The copper roof of St. Mary's Cathedral, Hildesheim, installed in 1280 A.D., survived until it's destruction during bombings in World War 2. And the roof at Kronborg, one of northern Europe's most important Renaissance castles (immortalized as Elsinore Castle in Shakespeare’s Hamlet) was installed in the 1585 A.D. The copper on the tower was renovated in 2009.

Earlier metal roofing was a sheeting in the form of corrugated galvanized steel and still find applications today in parts of the developing world. In addition, colour-coated steel roofs are popular in some of the Nordic countries such as Finland and Sweden.

Zinc (disambiguation)

Zinc is a metallic chemical element.

Zinc may also refer to:

Zinc (horse)

Zinc (1820–1840) was a British Thoroughbred racehorse and broodmare, which in 1818 became the third filly to win both the 1000 Guineas at Newmarket Racecourse and the Oaks at Epsom Downs Racecourse. As a three-year-old in 1823 she won three of her five starts, with her defeats coming against the classic-winning colts Nicolo and Emilius. She won both her races in 1824 but failed to win as a five-year-old in 1825 and was retired from racing.

Background

Zinc was a brown mare bred by her owner George FitzRoy, 4th Duke of Grafton at his stud at Euston Hall in Suffolk. Her dam Zaida had been bought by the Duke as a broodmare and proved to be highly successful: in addition to Zinc she produced the 1000 Guineas winner Zeal who in turn produced the filly Arab who won the same race in 1827. Her sire Woful was a brother of the Derby winners Whalebone and Whisker. He was also a successful stallion, siring the classic winners Arab, Theodore and Augusta (Epsom Oaks) before being exported to Prussia in 1832. Grafton sent the filly to be trained at Newmarket by Robert Robson, the so-called "Emperor of Trainers".