Octagon

In geometry, an octagon (from the Greek ὀκτάγωνον oktágōnon, "eight angles") is an eight-sided polygon or 8-gon.

A regular octagon has Schläfli symbol {8} and can also be constructed as a quasiregular truncated square, t{4}, which alternates two types of edges. A truncated octagon, t{8} is a hexadecagon, t{16}.

Properties of the general octagon

The sum of all the internal angles of any octagon is 1080°. As with all polygons, the external angles total 360°.

If squares are constructed all internally or all externally on the sides of an octagon, then the midpoints of the segments connecting the centers of opposite squares form a quadrilateral that is both equidiagonal and orthodiagonal (that is, whose diagonals are equal in length and at right angles to each other).

The midpoint octagon of a reference octagon has its eight vertices at the midpoints of the sides of the reference octagon. If squares are constructed all internally or all externally on the sides of the midpoint octagon, then the midpoints of the segments connecting the centers of opposite squares themselves form the vertices of a square.

Meet the Beatles!

Meet the Beatles! is the second Beatles album released in the United States. It was the first US Beatles album to be issued by Capitol Records, on 20 January 1964 in both mono and stereo formats. It topped the popular album chart on 15 February 1964 and remained at number one for eleven weeks before being replaced by The Beatles' Second Album. The cover featured Robert Freeman's portrait used in the United Kingdom for With the Beatles, with a blue tint added to the original stark black-and-white photograph.

Background

After constantly rejecting requests by both Brian Epstein and George Martin to release Beatles records in the United States, in November 1963 EMI label head Sir Joseph Lockwood sent a deputy to Los Angeles ordering Capitol Records to commence releasing and promoting Beatles product in the United States. Despite the "first album" claim on its cover, ten days prior to its release Vee-Jay Records of Chicago beat Capitol to the punch with the release of the Beatles' American debut album Introducing... The Beatles, which had been delayed for release for various reasons since the previous summer. Perhaps as a result of the Vee-Jay release, Liberty Music Shops advertised in the New York Times of 12 January 1964 that Meet the Beatles! was available for purchase, an ad not authorised by Capitol.

Sesame Street

Sesame Street is a long-running American children's television series created by Joan Ganz Cooney and Lloyd Morrisett. The program is known for its educational content, and images communicated through the use of Jim Henson's Muppets, animation, short films, humor, and cultural references. The series premiered on November 10, 1969, to positive reviews, some controversy, and high viewership; it has aired on the U.S.'s national public television provider (PBS) since its debut, with its first run moving to premium channel HBO on January 16, 2016.

The show has undergone significant changes throughout its history. The format of Sesame Street consists of a combination of commercial television production elements and techniques which have evolved to reflect the changes in American culture and the audience's viewing habits. With the creation of Sesame Street, producers and writers of a children's television show used, for the first time, educational goals and a curriculum to shape its content. It was also the first time a show's educational effects were studied.

The Octagon

The Octagon may refer to:

See also