Propeller

A propeller is a type of fan that transmits power by converting rotational motion into thrust. A pressure difference is produced between the forward and rear surfaces of the airfoil-shaped blade, and a fluid (such as air or water) is accelerated behind the blade. Propeller dynamics, like those of aircraft wings, can be modelled by either or both Bernoulli's principle and Newton's third law. A marine propeller of this type is sometimes colloquially known as a screw propeller or screw, however there is a different class of propellers known as cycloidal propellers - they are characterized by the higher propulsive efficiency averaging 0.72 compared to the screw propellers average of 0.6 and the ability to throw thrust in any direction at any time. Their disadvantages are higher mechanical complexity and higher cost.

History

Early developments

The principle employed in using a screw propeller is used in sculling. It is part of the skill of propelling a Venetian gondola but was used in a less refined way in other parts of Europe and probably elsewhere. For example, propelling a canoe with a single paddle using a "pitch stroke" or side slipping a canoe with a "scull" involves a similar technique. In China, sculling, called "lu", was also used by the 3rd century AD.

Propeller (Peter Stuart album)

Propeller is a 2002 studio album from the American singer-songwriter Peter Stuart. The album marked Stuart's solo debut. Stuart had previously formed the rock band Dog's Eye View in 1994. Before their hiatus, Stuart had been Dog's Eye View's lead vocalist and songwriter.

The album's lead single was "With My Heart in Your Hands".

Background

Dog's Eye View founder and vocalist Peter Stuart had left the band to pursue solo projects following their 1997 release, Daisy. Stuart, who had been a solo performer prior to forming Dog's Eye View, has stated that the idea of his making a solo album originally came from the group's record label, Columbia Records:

His first solo album was originally slated to be called Songs About You. Stuart began recording the album for Columbia, which had released the first two Dog's Eye View albums, Happy Nowhere and Daisy. Early production and recording were completed in Los Angeles. However, Stuart soon became disenchanted with Columbia executives, citing a lack of support for the album and other creative differences. He voluntarily severed ties with Columbia, and left the label with the rights to his forthcoming solo album.

Propeller (band)

Propeller is an Estonian punk band formed in 1978.

Line-up (other bands where played)

External links

Document (TV series)

Document is a Canadian documentary television series which aired on CBC Television from 1962 to 1969.

Premise

Various documentaries were featured in this occasional series.

Production

The first executive producers for this series were Patrick Watson
Douglas Leiterman. Their intention was to air a documentary approximately each month to provide a detailed treatment of a subject. By the second season of Document, Leiterman became executive producer on This Hour Has Seven Days and concentrated his work on that series. Watson became a host of Document at that time. Richard Nielsen became executive producer during the final episodes.

Scheduling

This series appeared on occasional random days and times from 16 September 1962 to 27 May 1969. It was given a monthly schedule in 1965 as a mid-year replacement for This Hour Has Seven Days in its Sunday night time slot.

Episodes

Episodes of Document included:

Document (disambiguation)

Document is a basic theoretical construct that refers to everything that may be preserved or represented in order to serve as evidence for some purpose.

Document or documents may also refer to:

See also

Document (album)

Document is the fifth studio album by the American alternative rock band R.E.M. It was released in 1987 a few months after their rarities collection Dead Letter Office appeared and is the last album of new material by the band released on the I.R.S. Records label. It is the first album on which the band worked with producer Scott Litt.

Composition

Document was R.E.M.'s first album co-produced by Scott Litt and the band, a collaboration that continued through Green, Out of Time, Automatic for the People, Monster, and New Adventures in Hi-Fi. The album's clear production and muscular rock riffs helped to move the band towards mainstream success and built on the work done by Don Gehman, who had produced their previous album Lifes Rich Pageant. This release not only launched "The One I Love," R.E.M.'s first Top 10 hit on the Billboard Hot 100 (it reached number nine), but also gave them their first platinum album.

"Exhuming McCarthy" makes an explicit parallel between the red-baiting of Joe McCarthy's time and the strengthening of the sense of American exceptionalism during the Reagan era, especially the Iran-Contra affair. Starting with the click-clack of a typewriter, it also includes a sound clip of Joseph Welch's rebuke of McCarthy from the Army-McCarthy Hearings: "Let us not assassinate this lad further, Senator.... You've done enough. Have you no sense of decency, sir, at long last? Have you left no sense of decency?"