The keystone effect is the apparent distortion of an image caused by projecting it onto an angled surface. It is the distortion of the image dimensions...

A keystone species is a species that has a disproportionately large effect on its natural environment relative to its abundance. The concept was introduced...

the arch surrounding the keystone is called a crown. Keystones or their suggested form are sometimes placed for decorative effect in the centre of the flat...

Look up keystone in Wiktionary, the free dictionary. Keystone or key-stone may refer to: Keystone (architecture), a central stone or other piece at the...

other, it appears to be an isosceles trapezoid, called the keystone effect because arch keystones are commonly trapezoidal. For example, when a rectangular...

Keynes effect (economics and finance) (Keynesian economics) Keystone effect (technology) Kinetic depth effect (perception) Kinetic isotope effect (chemical...

species is not always considered invasive, as in Europe it has a similar keystone effect to European beavers, which have not recolonized the area. The beaver...

He criticised the image quality issues caused by the rainbow effect and the keystone effect as well as the large size of the projector that made it cumbersome...

Keystone Collections Group, owned by Kratzenberg & Associates Inc., is a privately held local tax collections company operating primarily out of Irwin...

to the artist's taste. See 3D projection for details. Anamorphosis Keystone effect Image distortion Ray, Sidney F. (2002). "63.6: Rectification printing"...

Keystone College is a private college in northeastern Pennsylvania, United States. Although the college's official mailing address is La Plume, Pennsylvania...

together with their exact adjoints and derivatives. Anamorphosis Keystone effect, one of the defects often repaired by warping Radar geo-warping Softwarp...

A keystone is a small wooden or plastic fitting used in ale casks. For some years wooden casks have been effectively obsolete, with the majority now being...

correction is a specific case known as keystone distortion correction derived from Keystone effect. Keystone distortion gets its name from the symmetric...

contain a keystone species, a species that has a large impact on the surrounding environment and that can directly affect the food chain. If a keystone species...

distortions seen in some deep cave art. This distortion is known as the keystone effect. Gatton proposed that the deep cave distortions may have resulted from...

recorded after the gray wolf, both an apex predator and a keystone species (one with a large effect on its ecosystem), was reintroduced to Yellowstone National...

Gulf Keystone Petroleum Limited is an independent oil and gas exploration and production company that operates in the Kurdistan region of Iraq. It is also...

flagship species whose conservation benefits other species: 280  or a keystone species which may be targeted for conservation due to its impact on an...

originally created by accident while Chaplin was working at Mack Sennett's Keystone Studios, when dressing up for the 1914 short film Mabel's Strange Predicament...

these species. When a keystone species, such as a top predator, is removed from a community or ecosystem, an ecological cascade effect can occur through which...

term keystone species was coined by Robert Paine in 1969 and is a reference to the keystone architectural feature as the removal of a keystone species...

biomass. This keystone species effect forms the basis for the concept of ecological extinction. The potential role of the sea otter as the keystone predator...

NAFTA-related reasons like relocation of U.S. firms to Mexico. In Pennsylvania, Keystone Research Center attributed 38,325 in job losses in the state to trade with...

uses the same Amtrak-owned Philadelphia to Harrisburg Main Line as the Keystone Service trains, but continues further west via the Pittsburgh Line through...

Arkansas, White, and Red River Basins above the points of highest backwater effect of the Mississippi River. Includes all of Oklahoma and parts of Arkansas...

withdrawal from the Trans-Pacific Partnership negotiations, advancement of the Keystone XL and Dakota Access Pipeline projects, and planning for a wall along the...

be £200. In a competitive industry, it is often not recommended to use keystone pricing as a pricing strategy due to its relatively high profit margin...

The radical flank effect refers to the positive or negative effects that radical activists for a cause have on more moderate activists for the same cause...

whose laws of motion and illumination of gravity have been seen as a keystone of modern science; from the 19th century Charles Darwin, whose theory of...