Racing

In sport, racing is a competition of speed, against an objective criterion, usually a clock or to a specific point. The competitors in a race try to complete a given task in the shortest amount of time. Typically this involves traversing some distance, but it can be any other task involving speed to reach a specific goal.

A race may be run continuously from start to finish or may be made of several segments called heats, stages or legs. A heat is usually run over the same course at different times. A stage is a shorter section of a much longer course or a time trial.

Early records of races are evident on pottery from ancient Greece, which depicted running men vying for first place. A chariot race is described in Homer's Iliad.

Forms of racing

Running a distance is the most basic form of racing, but races may be conducted in vehicles, such as boats, cars, cycles and aircraft; or with animals such as horses or dogs. Other forms of racing are by skis, kicksled, skates or wheelchair. In a relay race members of a team take turns in racing parts of a circuit or performing a certain racing form.

Racing (disambiguation)

Racing is a competition of speed.

Racing may also refer to:

007 Racing

007 Racing is a racing video game based on the James Bond license. It was developed by Eutechnyx, published by Electronic Arts, and released in 2000 exclusively for the PlayStation console system. This game marks the seventh appearance of Pierce Brosnan's James Bond; the game included his likeness but not his voice. Including many revived characters from previous entries, the game is considered to be a spin-off out of the original chronicles.

Gameplay

In 007 Racing the player takes on the role of British secret agent Commander James Bond behind the wheel of some of his most famous vehicles from the then-current 19 official films. Cars include the Aston Martin DB5 made famous in its initial appearance in Goldfinger, the Lotus Esprit from The Spy Who Loved Me and For Your Eyes Only, and the BMW Z8 that briefly appeared in The World is not Enough as well as 7 other automobiles. Each car is equipped with all the usual gadgetry and weapons issued by Q, the Quartermaster of a special branch of MI6 referred to as Q-Branch. 007 Racing is often compared to the 1983 video game Spy Hunter because of the weapons, gadgets, and the goal of destroying your enemies on the road.

Group

Group may refer to:

Groups of people

In science and technology

In mathematics

In chemistry

In computing and the internet

Other uses in science and technology

Other uses

Shot grouping

In shooting, a shot grouping, or simply grouping, is the placement of multiple shots on a target, the shots taken in one shooting session. The closeness of the grouping, the nearness of all the shots to each other, is a measure of the accuracy of a weapon, and a measure of the shooter's consistency and skill.

Uses of the term

For firearms that shoot one round at a time, a shot grouping can be used to measure the accuracy of the system comprised out of weapon as well as the precision and uniformity of the ammunition by fixing the weapon into position on a test mount, and aiming it at a target. Multiple shots using rounds from same type and batch are fired to observe how the weapon groups the shots. If a person holds the weapon and shoots it, the grouping measures the combination of the person's skill and the weapon's accuracy.

In shotgun shooting, the grouping is also called the pattern. The pattern is the spread of shot from a single shotgun shell, measured as the smallest circle containing all the shots on the target. The barrel of a shotgun is designed to deliver a wide or narrow grouping, depending on the expected use. Shooting at close range indicates a cylinder bore barrel to deliver a wide grouping, while for hunting at longer distances such as 50 yards or meters, a choke is recommended for a tighter grouping.

Stratigraphic unit

A stratigraphic unit is a volume of rock of identifiable origin and relative age range that is defined by the distinctive and dominant, easily mapped and recognizable petrographic, lithologic or paleontologic features (facies) that characterize it.

Units must be mappable and distinct from one another, but the contact need not be particularly distinct. For instance, a unit may be defined by terms such as "when the sandstone component exceeds 75%".

Lithostratigraphic units

Sequences of sedimentary and volcanic rocks are subdivided on the basis of their lithology. Going from smaller to larger in scale, the main units recognised are Bed, Member, Formation, Group and Supergroup.

Bed

A bed is a lithologically distinct layer within a member or formation and is the smallest recognisable stratigraphic unit. These are not normally named, but may be in the case of a marker horizon.

Member

A member is a named lithologically distinct part of a formation. Not all formations are subdivided in this way and even where they are recognized, they may only form part of the formation.