Machine

A machine is a tool containing one or more parts that uses energy to perform an intended action. Machines are usually powered by mechanical, chemical, thermal, or electrical means, and are often motorized. Historically, a power tool also required moving parts to classify as a machine. However, the advent of electronics has led to the development of power tools without moving parts that are considered machines.

A simple machine is a device that simply transforms the direction or magnitude of a force, but a large number of more complex machines exist. Examples include vehicles, electronic systems, molecular machines, computers, television, and radio.

Etymology

The word machine derives from the Latin word machina, which in turn derives from the Greek (Doric μαχανά makhana, Ionic μηχανή mekhane "contrivance, machine, engine", a derivation from μῆχος mekhos "means, expedient, remedy").

A wider meaning of "fabric, structure" is found in classical Latin, but not in Greek usage.

This meaning is found in late medieval French, and is adopted from the French into English in the mid-16th century.

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

Blind

Blind may refer to:

Blind may also refer to:

Electronics, engineering, and science

Games and sports

Media and entertainment

Albums

Creative Commons

Creative Commons (CC) is a non-profit organization devoted to expanding the range of creative works available for others to build upon legally and to share. The organization has released several copyright-licenses known as Creative Commons licenses free of charge to the public. These licenses allow creators to communicate which rights they reserve, and which rights they waive for the benefit of recipients or other creators. An easy-to-understand one-page explanation of rights, with associated visual symbols, explains the specifics of each Creative Commons license. Creative Commons licenses do not replace copyright, but are based upon it. They replace individual negotiations for specific rights between copyright owner (licensor) and licensee, which are necessary under an "all rights reserved" copyright management, with a "some rights reserved" management employing standardized licenses for re-use cases where no commercial compensation is sought by the copyright owner. The result is an agile, low-overhead and low-cost copyright-management regime, profiting both copyright owners and licensees. Wikipedia uses one of these licenses.

Castlevania: Circle of the Moon

Castlevania: Circle of the Moon (Japanese: 悪魔城ドラキュラ Circle of the Moon, Hepburn: Akumajō Dorakyura: Sākuru obu za Mūn, Devil's Castle Dracula: Circle of the Moon) known simply as Castlevania in the PAL region, is a video game created by Konami only for the Game Boy Advance. Published as a launch title in 2001, Circle of the Moon belongs to Konami's Castlevania video game series, the premise of which centers on the eternal conflict between the vampire hunters of the Belmont clan and the immortal vampire Dracula. Circle of the Moon focuses on Nathan Graves and his quest to rescue his kidnapped mentor from Dracula. It is the last Castlevania game to use the series' original logo, which had been longstanding in all prior games for the past fifteen years.

Gameplay

Circle of the Moon makes use of a 2D side-scrolling style of gameplay, similar to many of the previous Castlevania video games. The objective of Circle of the Moon is to lead player character Nathan Graves through a monster-filled castle as he searches for his kidnapped mentor. Like many of the previous Castlevania protagonists, Nathan uses a whip to attack and defeat enemies, alongside secondary weapons—an axe, cross, holy water, dagger and stopwatch—only one of which may be carried at any time by the player. Hearts, typically found within candles, determine the amount of any secondary weapon carried by him.Circle of the Moon follows a nonlinear style of gameplay: at the beginning of the game, Nathan can only traverse certain areas of the castle; by obtaining various abilities, such as becoming able to run, double jump, and wall kick, he gradually explores the castle. He will also encounter rooms with the ability to teleport him across portions of the castle and rooms which will restore his health and allow the player to save his or her progress in the game. The game also automatically updates the castle map to reflect Nathan's progress through it.