Dunkerley's method — is used in mechanical engineering to determine the critical speed of a shaft rotor system. Other methods include the Rayleigh–Ritz method. Whirling of a shaft No shaft can ever be perfectly straight or perfectly balanced. When an element of mass… … Wikipedia
Dunkerley — or Dunckerley is a surname and may refer to: James Dunkerley, Professor of Politics at Queen Mary, University of London, and Director of the Institute for the Study of the Americas Jason Dunkerley, a Paralympian athlete from Canada competing… … Wikipedia
Rayleigh-Ritz method — In applied mathematics and mechanical engineering, the Rayleigh Ritz method is a widely used, classical method for the calculation of the natural vibration frequency of a structure in the second or higher order. It is a direct variational method… … Wikipedia
Mechanical resonance — This article is about mechanical resonance in physics and engineering. For a general description of resonance, see resonance. For mechanical resonance of sound including musical instruments, see acoustic resonance. For the music album by the… … Wikipedia
Vibration — For the soul music group, see The Vibrations. For the machining context, see Machining vibrations. For the albums, see Vibrations (Roy Ayers album) and Vibrations (The Three Sounds album). Classical mechanics … Wikipedia
Skew arch — A skew arch (also known as an oblique arch) is a method of construction that enables an arch bridge to span an obstacle at some angle other than a right angle. This results in the faces of the arch not being perpendicular to its abutments and its … Wikipedia
Rotordynamics — is a specialized branch of applied mechanics concerned with the behavior and diagnosis of rotating structures. It is commonly used to analyze the behavior of structures ranging from jet engines and steam turbines to auto engines and computer disk … Wikipedia
Scouting in displaced persons camps — Scouting has been active in displaced persons camps[1][2] (DP camps) and in the lives of refugees since World War II. During and after World War II, until the early 1950s, Scouting and Guiding flourished in these camps.[3] These Scout and Girl… … Wikipedia
Howard Spring — (February 10, 1889 May 3, 1965) was a Welsh author.He began his writing career as a journalist, but from 1934 produced a series of best selling novels, the most successful of which was Fame is the Spur (1940), which has been both a major film and … Wikipedia
Jesus myth hypothesis — Jesus myth links here. For a comparison between Jesus Christ and pagan mythology see Jesus Christ and comparative mythology. The Jesus myth hypothesis, also referred to as the Jesus myth theory , the Christ myth or the Jesus myth is an argument… … Wikipedia
