Cohn Ronald

High Quality Content by WIKIPEDIA articles! Sofia`s Diary was produced and created by Nuno Bernardo and Triona Campbell with their company beActive

High Quality Content by WIKIPEDIA articles! Sofia Zoo in Sofia, the capital of Bulgaria, was founded by royal decree on 1 May 1888, and is Bulgaria`s oldest and largest zoological garden. It covers 36 hectares (89 acres) and, as of March 2006, housed 1,113 animals representing 244 species.

High Quality Content by WIKIPEDIA articles! Harold W. Daily (February 8, 1902 – December 5, 1987), better known as "Pappy" Daily, was an American country music record producer and entrepreneur who cofounded the Texas-based record label Starday Records. Daily worked with many of the well-known artists in country music during the 1950s and 60s especially George Jones, who looked upon him as a father figure as well as a business advisor. Other artists Daily worked with include Melba Montgomery (signed by Daily following recommendation by Jones), J. P. Richardson (the Big Bopper), and Roger Miller.

High Quality Content by WIKIPEDIA articles! USS Turaco (AMc-55), an Accentor class coastal minesweeper was named, by the U.S. Navy for the turaco, a large, brilliantly colored African bird having a long tail and prominent crest.

High Quality Content by WIKIPEDIA articles! Tom Poltl (born September 21, 1977) is a retired American soccer midfielder who was a member of the United States U-20 men`s national soccer team at the 1997 FIFA World Youth Championship.

High Quality Content by WIKIPEDIA articles! Robert Grant Irving, Ph.D. is an author and lecturer specializing in the history of art and architecture of Britain and the British Empire. His book Indian Summer: Lutyens, Baker, and Imperial Delhi (Yale University Press, 1981 and Oxford University Press, 1982) is the story of the creation of New Delhi from 1911 to 1931, the grandest architectural undertaking in the history of the British Empire. The principal architects were the two leading practitioners of the day, Sir Edwin Lutyens and Sir Herbert Baker. Dr. Irving`s book won the British Council Prize in the Humanities as well as the highest honor of the Society of Architectural Historians, the Alice Davis Hitchcock Book Award.

High Quality Content by WIKIPEDIA articles! Preludes: Rare and Unreleased Recordings is a two-CD compilation of music and interviews, including unreleased outtakes and demos, by singer-songwriter Warren Zevon, who died in 2003.

High Quality Content by WIKIPEDIA articles! AppML was an open source initiative from W3Schools for describing Internet applications. The name is a contraction of Application Markup Language.

High Quality Content by WIKIPEDIA articles! In the subfield of numerical analysis, a sparse matrix is a matrix populated primarily with zeros (Stoer Bulirsch 2002, p. 619). The term itself was coined by Harry M. Markowitz.

High Quality Content by WIKIPEDIA articles! The Canadas is the collective name for Upper Canada and Lower Canada, two British colonies in Canada. They were both created by the Constitutional Act of 1791 and abolished in 1841 with the union of Upper and Lower Canada.

High Quality Content by WIKIPEDIA articles! The principle of sufficient reason states that anything that happens does so for a reason: no state of affairs can obtain, and no statement can be true unless there is sufficient reason why it should not be otherwise. The principle is usually attributed to Gottfried Leibniz, although the first person to use it was Anaximander of Miletus.

High Quality Content by WIKIPEDIA articles! Residue may refer to:

High Quality Content by WIKIPEDIA articles! Scientific notation is a way of writing numbers that are too large or too small to be conveniently written in standard decimal notation. Scientific notation has a number of useful properties and is commonly used in calculators and by scientists, mathematicians, doctors, and engineers.

High Quality Content by WIKIPEDIA articles! In mathematics the spin group Spin(n) is the double cover of the special orthogonal group SO(n), such that there exists a short exact sequence of Lie groups

High Quality Content by WIKIPEDIA articles! In Euclidean plane geometry, tangent lines to circles form the subject of several theorems, and play an important role in many geometrical constructions and proofs. Since the tangent line to a circle at a point P is perpendicular to the radius to that point, theorems involving tangent lines often involve radial lines and orthogonal circles.

High Quality Content by WIKIPEDIA articles! Parallel evolution is the development of a similar trait in related, but distinct, species descending from the same ancestor, but from different clades.

High Quality Content by WIKIPEDIA articles! In recreational mathematics, a repunit is a number like 11, 111, or 1111 that contains only the digit 1. The term stands for repeated unit and was coined in 1966 by Albert H. Beiler. A repunit prime is a repunit that is also a prime number.

High Quality Content by WIKIPEDIA articles! In Einstein`s theory of general relativity, the Schwarzschild solution (or the Schwarzschild vacuum) describes the gravitational field outside a spherical, uncharged, non-rotating mass such as a (non-rotating) star, planet, or black hole. It is also a good approximation to the gravitational field of a slowly rotating body like the Earth or Sun. The cosmological constant is assumed to equal zero.

High Quality Content by WIKIPEDIA articles! A spheroid, or ellipsoid of revolution is a quadric surface obtained by rotating an ellipse about one of its principal axes; in other words, an ellipsoid with two equal semi-diameters.

High Quality Content by WIKIPEDIA articles! A parabolic partial differential equation is a type of second-order partial differential equation (PDE), describing a wide family of problems in science including heat diffusion, ocean acoustic propagation, in physical or mathematical systems with a time variable, and which behave essentially like heat diffusing through a solid.

High Quality Content by WIKIPEDIA articles! In the theory of Lorentzian manifolds, spherically symmetric spacetimes admit a family of nested round spheres. In such a spacetime, a particularly important kind of coordinate chart is the Schwarzschild chart, a kind of polar spherical coordinate chart on a static and spherically symmetric spacetime, which is adapted to these nested round spheres. The defining characteristic of Schwarzschild chart is that the radial coordinate possesses a natural geometric interpretation in terms of the surface area and Gaussian curvature of each sphere. However, radial distances and angles are not accurately represented.