Pinwheel

A pinwheel is a children's toy that spins when blown.

Pinwheel may also refer to:

Pinwheel (cryptography)

In cryptography, a pinwheel was a device for producing a short pseudorandom sequence of bits (determined by the machine's initial settings), as a component in a cipher machine. A pinwheel consisted of a rotating wheel with a certain number of positions on its periphery. Each position had a "pin", "cam" or "lug" which could be either "set" or "unset". As the wheel rotated, each of these pins would in turn affect other parts of the machine, producing a series of "on" or "off" pulses which would repeat after one full rotation of the wheel. If the machine contained more than one wheel, usually their periods would be relatively prime to maximize the combined period.

Pinwheels might be turned through a purely mechanical action (as in the M-209) or electromechanically (as in the Lorenz SZ 40/42). Other cipher machines which used pinwheels include the C-52, the CD-57 and the Siemens and Halske T52.

Pinwheels can be viewed as a predecessor to the electronic linear feedback shift register (LFSR), used in later cryptosystems.

Pinwheel (TV series)

Pinwheel is a children's television show that aired on the Nickelodeon cable network from 1977 to 1990. The show originally aired on channel C-3 of Warner Cable's interactive system QUBE in Columbus, Ohio, and it began airing on Nickelodeon when it first launched in April 1979.

Broadcast

Pinwheel was the flagship program of C-3, a children's network in Columbus, Ohio, in the earliest days of cable television broadcasting. C-3 soon changed its name to "Pinwheel". In 1979, Warner Cable purchased the Sat-1 communications satellite from Jim and Tammy Faye Bakker and rebranded the Pinwheel Channel as Nickelodeon, where it reformatted Pinwheel as hour-long episodes shown in three- to five-hour blocks, a format which would eventually become the model for the Nick Jr. programming for younger children.

There were a total of 13 seasons and 260 one-hour Pinwheel episodes recorded from 1977 to 1989. Pinwheel remained in syndication until 1989 on Nickelodeon and until 1990 on Nick Jr. It remains the longest-running Nickelodeon show in episodes and hours on air, and was the longest-running in years until You Can't Do That on Television broke the record. It is now #6, behind All That, You Can't Do That on Television, Nick News, Rugrats and SpongeBob SquarePants.

Kiln

A kiln is a thermally insulated chamber, a type of oven, that produces temperatures sufficient to complete some process, such as hardening, drying, or chemical changes. Various industries and trades use kilns to harden objects made from clay into pottery, tiles and bricks. Various industries use rotary kilns for pyroprocessing—to calcinate ores, produce cement, lime, and many other materials.

Uses of kilns

The earliest known kiln dates to around 6000 BC, and was found at the Yarim Tepe site in modern Iraq.Neolithic kilns were able to produce temperatures greater than 900 °C (1652 °F). Uses include:

Kiln (band)

Kiln (often typeset as KILN) is a Michigan-based Ambient trio that is a reincarnation of ambient group Fibreforms.

Discography

Line-up

Kevin Hayes - drums, sampling
Kirk Marrison - treated guitar, acoustic guitar, effect loops, keyboard
Clark Rehberg III - treated guitar, effect loops

Brady Kish - bass guitar, double bass (session musician)

In Media

Kiln was mentioned in a Radiolab music special on May 14, 2008.

Kiln (poem)

The Kiln (Ancient Greek: Κάμινος, Kaminos), or Potters (Κεραμεῖς, Kerameis), is a 23-line hexameter poem that was variously attributed to Homer or Hesiod during antiquity, but is not considered the work of either poet by modern scholars. The poem constitutes an appeal to Athena to grant success to certain unnamed potters if they pay for the poet's song, followed by a series of curses to be enacted should they not reimburse him.

Authorship

Although the Kiln is printed among the Hesiodic fragments, there is little reason to assume that it was widely attributed to Hesiod. In discussing a word for "basket" known as a κάναστρον (kanastron), Pollux cites the third verse of the poem, calling it the Potters and giving a tentative ascription to Hesiod:

The other witnesses to the poem all belong to the Homeric biographical tradition, and it seems that the Kiln was composed during the 6th or 5th century BCE as part of a lost work on Homer that predates the surviving texts. According to the pseudo-Herodotean Life of Homer, the great bard was traveling through the eastern Mediterranean and happened to land on the island of Samos. While there he encountered a group of potters who, aware of his fame, offered Homer some of their wares and whatever else that had on hand if he would sing for them. In response, Homer sang the Kiln.