Waste

Waste and wastes are unwanted or unusable materials. Waste is any substance which is discarded after primary use, or it is worthless, defective and of no use.

The term is often subjective (because waste to one person is not necessarily waste to another) and sometimes objectively inaccurate (for example, to send scrap metals to a landfill is to inaccurately classify them as waste, because they are recyclable). Examples include municipal solid waste (household trash/refuse), hazardous waste, wastewater (such as sewage, which contains bodily wastes (feces and urine) and surface runoff), radioactive waste, and others.

Definitions

United Nations Environment Program

According to the Basel Convention,

United Nations Statistics Division, Glossary of Environment Statistics

European Union

Under the Waste Framework Directive, the European Union defines waste as "an object the holder discards, intends to discard or is required to discard."

Types

There are many waste types defined by modern systems of waste management, notably including:

Waste (play)

Waste is a play by the English author Harley Granville Barker. It exists in two wholly different versions, from 1906 and 1927. The first version was refused a license by the Lord Chamberlain and had to be performed privately by the Stage Society in 1907; the second was finally staged in public at the Westminster Theatre in 1936.

Plot

The plot centres around ambitious independent politician Henry Trebell, his plans for a bill to disestablish the Church of England and his fall from grace and suicide after his affair with married woman Amy O'Connell, who dies after a botched abortion. The title may refer to the waste of his potential talents due to the scandal, the loss of the disestablishment bill and the termination of Amy's pregnancy.

Dramatis personae (1927 version)

Waste (disambiguation)

Waste is unwanted or undesired material.

Waste, WASTE or W.A.S.T.E. may also refer to:

Tank

A tank is a large, heavily armoured fighting vehicle with tracks and a large tank gun that is designed for front-line combat. Modern tanks are mobile land weapon platforms, mounting a large-calibre cannon in a rotating gun turret. They combine this with heavy vehicle armour which provides protection for the crew, the vehicle's weapons, and its propulsion systems, and operational mobility, due to its use of tracks rather than wheels, which allows the tank to move over rugged terrain and be positioned on the battlefield in advantageous locations. These features enable the tank to perform well in a tactical situation: the combination of powerful weapons fire from their tank gun and their ability to resist enemy fire means the tank can take hold of and control an area and prevent other enemy vehicles from advancing. In both offensive and defensive roles, they are powerful units able to perform key primary tasks required of armoured units on the battlefield. The modern tank was the result of a century of development from the first primitive armoured vehicles, due to improvements in technology such as the internal combustion engine, which allowed the rapid movement of heavy armoured vehicles. As a result of these advances, tanks underwent tremendous shifts in capability during the World Wars of the 20th century.

Tank (gaming)

A tank (also known as a meat shield) is a style of character in gaming, often associated with a character class. A common convention in real-time strategy games, role-playing games, fighting games, multiplayer online battle arenas and MUDs, tanks redirect enemy attacks or attention toward themselves in order to protect other characters or units. Since this role often requires them to suffer large amounts of damage, they rely on large amounts of vitality or armor, healing by other party members, evasiveness and misdirection, or self regeneration.

Tanks are often represented as large or heavily armored.

Role in games

"Tanking" occurs when the unit is intended to be the one taking damage (typically by being dangerous or detrimental, or using a game mechanic that forces it to be targeted), and secondly, to ensure that they can survive this damage through sheer health points or mitigation.

In real-time strategy games the role of a tank unit is to provide a health buffer for weaker ranged classes. Frequently maneuvering or other tactics are used by the tank to make themselves the most tempting or highest-priority target of enemy attacks, thereby diverting enemy attacks away from allies. Many basic strategies in games such as StarCraft and Warcraft III revolve around learning to micro-manage units so they attack tanks first so that the tanks do not continually attack units.

Tank (disambiguation)

A tank is an armoured combat vehicle. The other common meaning is a storage tank, a container, usually for liquids.

Tank may also refer to:

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