City

A city is a large and permanent human settlement. Although there is no agreement on how a city is distinguished from a town in general English language meanings, many cities have a particular administrative, legal, or historical status based on local law.

Cities generally have complex systems for sanitation, utilities, land usage, housing, and transportation. The concentration of development greatly facilitates interaction between people and businesses, benefiting both parties in the process, but it also presents challenges to managing urban growth.

A big city or metropolis usually has associated suburbs and exurbs. Such cities are usually associated with metropolitan areas and urban areas, creating numerous business commuters traveling to urban centers for employment. Once a city expands far enough to reach another city, this region can be deemed a conurbation or megalopolis. In terms of population, the largest city proper is Shanghai, while the fastest-growing is Dubai.

Origins

There is not enough evidence to assert what conditions gave rise to the first cities. Some theorists have speculated on what they consider suitable pre-conditions and basic mechanisms that might have been important driving forces.

City government in Washington (state)

There are 281 municipalities in the U.S. state of Washington. State law determines the various powers its municipalities have.

City classes

Legally, a city in Washington can be described primarily by its class. There are five classes of cities in Washington:

First class cities are cities with a population over 10,000 at the time of reorganization and operating under a home rule charter. They are permitted to perform any function specifically granted them by Title 35 RCW (Revised Code of Washington). Among them are Seattle, Tacoma, Spokane, Vancouver, and Yakima.

Second class cities are cities with a population over 1,500 at the time of reorganization and operating without a home rule charter. Like first class cities, they are permitted to perform any function specifically granted them by Title 35 RCW. Among them are Port Orchard, Wapato, and Colville.

Towns are municipalities with a population of under 1,500 at the time of reorganization. Towns are not authorized to operate under a charter. Like the previously listed cities, they are permitted to perform any function specifically granted them by Title 35 RCW. Among them are Steilacoom, Friday Harbor, Eatonville, and Waterville. In 1994, the legislature made 1,500 the minimum population required to incorporate.

Administrative divisions of Texas

Texas has a total of 254 counties, many cities, and numerous special districts, the most common of which is the independent school district.

County

Texas has a total of 254 counties, by far the largest number of counties of any state.

Each county is run by a five-member Commissioners' Court consisting of four commissioners elected from single-member districts (called commissioner precincts) and a county judge elected at-large. The county judge does not have authority to veto a decision of the commissioners court; the judge votes along with the commissioners (being the tie-breaker in close calls). In smaller counties, the county judge actually does perform judicial duties, but in larger counties the judge's role is limited to serving on the commissioners court and certifying elections. Certain officials, such as the sheriff and tax collector, are elected separately by the voters, but the commissioners court determines their office budgets, and sets overall county policy. All county elections are partisan, and commissioner precincts are redistricted after each ten year Census both to equalize the voting power in each and in consideration of the political party preferences of the voters in each.

Vampire (car)

The Vampire was a jet-propelled car that currently holds the outright British land speed record, driven by Colin Fallows to a mean speed of 300.3 mph (483.3 km/h) on July 5, 2000 at Elvington, Yorkshire, England.

Vampire was 30 feet (9.1 m) long and consumed from 7 to 10 UK gallons of fuel per mile. Powered by a Rolls-Royce Orpheus turbojet engine, it could accelerate from standstill to 272 mph (438 km/h) in six seconds, a personal best set at Santa Pod Raceway.

Vampire was originally constructed by Allan 'Bootsie' Herridge, a pioneer British drag racer, as one of a pair of identical match-race jet dragsters in 1981. The sister car "Hellbender" was involved in a crash in 1986 in which Mark Woodley, an experienced dragster driver, was killed.

Vampire crashed in 2006 during shooting of a segment for the television show Top Gear, severely injuring its driver, Top Gear presenter Richard Hammond. Hammond's peak speed was higher than the official British land speed record, recording a top speed of 314 mph (505 km/h). However, he did not officially break the British record as, according to the rules, two runs in different directions and an independent observer are required. Hammond crashed on his seventh run. Jeremy Clarkson joked that Hammond would have created the record for the fastest crash but would have needed to repeat the crash in the opposite direction.

Vampire (1979 film)

Vampire is a 1979 television film directed by E. W. Swackhamer and co-written and produced by Steven Bochco.

Plot

A handsome millionaire vampire with an irresistible power over women becomes hunted by two vampire killers in modern day San Francisco.

References

External links

Vampire (theorem prover)

Vampire is an automatic theorem prover for first-order classical logic developed in the School of Computer Science at the University of Manchester by Andrei Voronkov together with Kryštof Hoder and previously with Alexandre Riazanov. So far it has won the "world cup for theorem provers" (the CADE ATP System Competition) in the most prestigious CNF (MIX) division eleven times (1999, 2001–2010).

Background

Vampire's kernel implements the calculi of ordered binary resolution and superposition for handling equality. The splitting rule and negative equality splitting can be simulated by the introduction of new predicate definitions and dynamic folding of such definitions. A DPLL-style algorithm splitting is also supported. A number of standard redundancy criteria and simplification techniques are used for pruning the search space: tautology deletion, subsumption resolution, rewriting by ordered unit equalities, basicness restrictions and irreducibility of substitution terms. The reduction ordering used is the standard Knuth-Bendix ordering.