Spinner

Spinner may refer to:

Technology

Arts and entertainment

People

Fictional characters

Other uses

Spinner (cell culture)

A Spinner is a type of bioreactor which features an impeller, stirrer or similar device to agitate the contents (usually a mixture of cells, medium and products like proteins that can be harvested). The vessels are usually made out of glass or stainless steel with port holes to accommodate sensors, Medium input or gas flow.

Spinner type vessels are used for mammalian or plant cell culture. They are adequate for cell suspensions and attachment dependent cell types.

Spinnerbait

A Spinnerbait refers to any one of a family of fishing lures that get their name from one or more metal blades shaped so as to spin like a propeller when the lure is in motion, creating varying degrees of flash and vibration that mimics small fish or other prey. The two most popular types of spinnerbaits are the 'in-line spinner' and 'safety pin' spinnerbaits, though others such as the 'tail-spinner' also exist. Spinnerbaits are used principally for catching predatory fish such as perch, pike and bass.

Mode of operation

Spinnerbaits attract predatory fish primarily by activating a special sense organ called the lateral line system through the spinning blade. The Lateral line system enables fish to "touch" and ‘feel’ objects at a distance. Most fish have well-developed sense of touch and can feel the slightest change of water flow around it as a series of vibrations which may warn fish of approaching dangers or indicate the location of prey.

Spinnerbaits can also stimulate other senses of fish to mimic prey by creating flashes in the water (sight) and by creating sound waves in the water (hearing).

Echelon (band)

Echelon were a four-piece band hailing from Essex, England.

Biography

Guitarist Mark Brandon, bassist Owain North and vocalist Paul Usher met at an early age and played together in various lineups, however became serious about a career as a band following the recruitment of drummer Andrew Grant. Following a series of local gigs, the band caught the ear of rock legend Alan McGee in early 2004 who would subsequently sign the band to his Poptones label later that year.

The band gained momentum, supporting bands such as The Others and The Boxer Rebellion and doing their own headline tour surrounding the release of their first single Plus. The single received airplay from renowned DJs such as Steve Lamacq and Tom Robinson, who made it single of the week on his BBC 6 Music evening show. The single also received airplay from XFM where the band did a live session. The debut single Plus was released on 8 November to positive reviews, and charted at Number 57 in the Official Charts, a great accomplishment for a relatively unknown band.

Echelon formation

An echelon formation is a (usually military) formation in which its units are arranged diagonally. Each unit is stationed behind and to the right (a "right echelon"), or behind and to the left ("left echelon"), of the unit ahead. The name of the formation comes from the French word échelon, meaning a rung of a ladder, which describes the shape that this formation has when viewed from above or below.

Use of the formation dates back to ancient infantry and cavalry warfare when attempting to flank an enemy or to break one wing with overwhelming numbers. One of the earliest uses was at the Battle of Leuctra when the Thebans attacked the Spartan right with a column 48 men deep while their weaker center and right were refused. The echelon formation was also used by Hannibal at the Battle of Cannae, Alexander the Great at the Battle of Gaugamela, Frederick II of Prussia, and the Confederate army at the Battle of Gettysburg

The tactic persists up to the present day, where it is regularly employed by all branches of the modern armed forces. Tactically, echelon formations are used because of the excellent range of vision offered to each participant in the formation. In particular, it is commonly employed by armored cavalry because of the large, overlapping fields of fire that it gives to each tank in the formation, and by combat aircraft, where the close, streamlined flight formation can allow the planes to dramatically reduce fuel consumption by "surfing" the updraft created by the wingtip vortices of the aircraft ahead.

Echelon (card game)

Echelon is a turn-based, customizable World War II strategy card game from Echelon Games .