Aerial (album)

Aerial is the eighth studio album by the English singer-songwriter and musician Kate Bush, released in 2005, twelve years after her 1993 album The Red Shoes. It is her only double album.

Overview

Aerial is Bush's first double album, and was released after a twelve-year absence from the music industry during which Bush devoted her time to family and the raising of her son, Bertie. The anticipation leading up to the album's release was immense, with press articles devoted to Bush being printed months, even years before. Like Bush's previous album, The Red Shoes, Aerial does not feature a cover photograph of Bush, but rather one that is emblematic of the album's celebration of sky, sea, and birdsong. The cover image, which seems to show a mountain range at sunset reflected on the sea is in fact a waveform of a blackbird song superimposed over a glowing photograph.

Aerial is one of Bush's most critically acclaimed albums. Musically, the album is a multi-layered work, incorporating elements of folk, Renaissance, classical, reggae, flamenco, and rock. As with 1985's Hounds of Love, the album is divided into two thematically distinct collections. The first disc, subtitled A Sea of Honey, features a set of unrelated songs including the hit single "King of the Mountain", a Renaissance-style ode to her son "Bertie", performed with period instruments, and "Joanni", based on the story of Joan of Arc. In the song "", Bush sings the number to its 78th decimal place, then from its 101st to its 137th decimal place. The piano and vocal piece "A Coral Room", dealing with the loss of Bush's mother and the passage of time, was hailed by critics as "stunning" in its simplicity, "profoundly moving" and as "one of the most beautiful" pieces Bush has ever recorded.

Forma

Forma is a Latin word meaning "form". Both the word "forma" and the word "form" are used interchangeably as informal terms in biology:

Formwork

Formwork is the term given to either temporary or permanent molds into which concrete or similar materials are poured. In the context of concrete construction, the falsework supports the shuttering moulds.

Formwork and concrete form types

Formwork comes in several types:

Homogeneous polynomial

In mathematics, a homogeneous polynomial is a polynomial whose nonzero terms all have the same degree. For example, is a homogeneous polynomial of degree 5, in two variables; the sum of the exponents in each term is always 5. The polynomial is not homogeneous, because the sum of exponents does not match from term to term. A polynomial is homogeneous if and only if it defines a homogeneous function. An algebraic form, or simply form, is a function defined by a homogeneous polynomial. A binary form is a form in two variables. A form is also a function defined on a vector space, which may be expressed as a homogeneous function of the coordinates over any basis.

A polynomial of degree 0 is always homogeneous; it is simply an element of the field or ring of the coefficients, usually called a constant or a scalar. A form of degree 1 is a linear form. A form of degree 2 is a quadratic form. In geometry, the Euclidean distance is the square root of a quadratic form.

Homogeneous polynomials are ubiquitous in mathematics and physics. They play a fundamental role in algebraic geometry, as a projective algebraic variety is defined as the set of the common zeros of a set of homogeneous polynomials.