Circle

A circle is a simple shape in Euclidean geometry. It is the set of all points in a plane that are at a given distance from a given point, the centre; equivalently it is the curve traced out by a point that moves so that its distance from a given point is constant. The distance between any of the points and the centre is called the radius.

A circle is a simple closed curve which divides the plane into two regions: an interior and an exterior. In everyday use, the term "circle" may be used interchangeably to refer to either the boundary of the figure, or to the whole figure including its interior; in strict technical usage, the circle is only the boundary and the whole figure is called a disk.

A circle may also be defined as a special ellipse in which the two foci are coincident and the eccentricity is 0, or the two-dimensional shape enclosing the most area per unit perimeter squared, using calculus of variations.

Terminology

Circles (film distributor)

Circles was a feminist film and video distribution network in the UK, which was set up out of a desire to distribute and screen women's films on their own terms. It was founded in 1979 by feminist filmmakers Lis Rhodes, Jo Davis, Felicity Sparrow and Annabel Nicolson, publishing a 1980 catalogue including about 30 films, and it closed in 1991, largely due to funding issues that also prompted the merger of Circles and Cinema of Women, which led to the formation of Cinenova. A previous funding crisis in 1987, when funding by Tower Hamlets council had been withdrawn, had been resolved with replacement funding from the British Film Institute.

Origins

According to Jenny Holland and Jane Harris, "Circles started in 1979, partly as a response to an Arts Council of Great Britain exhibition on experimental film. Feeling that their work on women's involvement in this field was being marginalised, the women on the exhibition committee withdrew their painstakingly researched work and issued an explanatory statement. In many ways, this research was the cornerstone of Circles, which went on to distribute the films by Alice Guy, Germaine Dulac, Maya Deren, and Lois Weber which were to have been discussed in the exhibition." The statement, "Women and the Formal Film," was published in the "Film as Film" exhibition catalogue and acted as a manifesto for the distribution collective that emerged.

The Party Scene

The Party Scene is the debut full-length studio album by American pop punk band All Time Low, released on July 19, 2005 via regional imprint Emerald Moon Records. Music videos were released for "Circles" and "The Girl's a Straight-Up Hustler". Tracks 2, 3, 8, 9 and 12 were re-recorded for the band's next EP, Put Up or Shut Up.

Track listing

All music and arrangements by All Time Low; except where noted. All lyrics by Alex Gaskarth. Additional arrangements by Paul Leavitt.

Personnel

Personnel per booklet.

References

Altitude

Altitude or height (sometimes known as depth) is defined based on the context in which it is used (aviation, geometry, geographical survey, sport, and many more). As a general definition, altitude is a distance measurement, usually in the vertical or "up" direction, between a reference datum and a point or object. The reference datum also often varies according to the context. Although the term altitude is commonly used to mean the height above sea level of a location, in geography the term elevation is often preferred for this usage.

Vertical distance measurements in the "down" direction are commonly referred to as depth.

Altitude in aviation

In aviation, the term altitude can have several meanings, and is always qualified by either explicitly adding a modifier (e.g. "true altitude"), or implicitly through the context of the communication. Parties exchanging altitude information must be clear which definition is being used.

Aviation altitude is measured using either mean sea level (MSL) or local ground level (above ground level, or AGL) as the reference datum.

Altitude (film)

Altitude is a Canadian horror, television and "direct-to-video" film directed by Canadian comic book writer and artist Kaare Andrews.Anchor Bay Entertainment is set to distribute the film in North America, U.K., Australia, and New Zealand.

The trailer for Altitude premiered at the 2010 San Diego Comic Con.

Plot

In the prologue, the mother of Sara (Jessica Lowndes) is transporting a family of three (two parents and their son) in a small aircraft. The child is extremely nervous and starts hyperventilating. Wondering why he is so afraid, the parents suddenly see an out-of-control aircraft that crashes into them, and everyone plummets to the ground.

Years later, Sara, who has recently received her pilot's license, is planning to fly to a concert with her friends: her boyfriend Bruce Parker (Landon Liboiron), her cousin Cory (Ryan Donowho), her best friend Mel (Julianna Guill) and Mel's boyfriend Sal (Jake Weary). While in the air, Bruce's nerves draw ridicule from the others and Sara invites him to take the controls. They hit some turbulence and Bruce loses control, taking them into a steep climb.

Altitude (triangle)

In geometry, an altitude of a triangle is a line segment through a vertex and perpendicular to (i.e. forming a right angle with) a line containing the base (the opposite side of the triangle). This line containing the opposite side is called the extended base of the altitude. The intersection between the extended base and the altitude is called the foot of the altitude. The length of the altitude, often simply called the altitude, is the distance between the extended base and the vertex. The process of drawing the altitude from the vertex to the foot is known as dropping the altitude of that vertex. It is a special case of orthogonal projection.

Altitudes can be used to compute the area of a triangle: one half of the product of an altitude's length and its base's length equals the triangle's area. Thus the longest altitude is perpendicular to the shortest side of the triangle. The altitudes are also related to the sides of the triangle through the trigonometric functions.