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K-calculus Diagram For Reciprocal K-factor
Bondi ''k''-calculus is a method of teaching special relativity popularised by Sir Hermann Bondi, that has been used in university-level physics classes (e.g. at The University of Oxford), and in some relativity textbooks. The usefulness of the ''k''-calculus is its simplicity. Many introductions to relativity begin with the concept of velocity and a derivation of the Lorentz transformation. Other concepts such as time dilation, length contraction, the relativity of simultaneity, the resolution of the twins paradox and the relativistic Doppler effect are then derived from the Lorentz transformation, all as functions of velocity. Bondi, in his book ''Relativity and Common Sense'', first published in 1964 and based on articles published in ''The Illustrated London News'' in 1962, reverses the order of presentation. He begins with what he calls "a fundamental ratio" denoted by the letter k (which turns out to be the radial Doppler factor).d'Inverno (1992), p.40 From this he explain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Special Relativity
In physics, the special theory of relativity, or special relativity for short, is a scientific theory regarding the relationship between space and time. In Albert Einstein's original treatment, the theory is based on two postulates: # The laws of physics are invariant (that is, identical) in all inertial frames of reference (that is, frames of reference with no acceleration). # The speed of light in vacuum is the same for all observers, regardless of the motion of the light source or the observer. Origins and significance Special relativity was originally proposed by Albert Einstein in a paper published on 26 September 1905 titled "On the Electrodynamics of Moving Bodies".Albert Einstein (1905)''Zur Elektrodynamik bewegter Körper'', ''Annalen der Physik'' 17: 891; English translatioOn the Electrodynamics of Moving Bodiesby George Barker Jeffery and Wilfrid Perrett (1923); Another English translation On the Electrodynamics of Moving Bodies by Megh Nad Saha (1920). The incompa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
K-calculus Diagram For Reciprocal K-factor
Bondi ''k''-calculus is a method of teaching special relativity popularised by Sir Hermann Bondi, that has been used in university-level physics classes (e.g. at The University of Oxford), and in some relativity textbooks. The usefulness of the ''k''-calculus is its simplicity. Many introductions to relativity begin with the concept of velocity and a derivation of the Lorentz transformation. Other concepts such as time dilation, length contraction, the relativity of simultaneity, the resolution of the twins paradox and the relativistic Doppler effect are then derived from the Lorentz transformation, all as functions of velocity. Bondi, in his book ''Relativity and Common Sense'', first published in 1964 and based on articles published in ''The Illustrated London News'' in 1962, reverses the order of presentation. He begins with what he calls "a fundamental ratio" denoted by the letter k (which turns out to be the radial Doppler factor).d'Inverno (1992), p.40 From this he explain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Invariant Interval
In physics, spacetime is a mathematical model that combines the three dimensions of space and one dimension of time into a single four-dimensional manifold. Spacetime diagrams can be used to visualize relativistic effects, such as why different observers perceive differently where and when events occur. Until the 20th century, it was assumed that the three-dimensional geometry of the universe (its spatial expression in terms of coordinates, distances, and directions) was independent of one-dimensional time. The physicist Albert Einstein helped develop the idea of spacetime as part of his theory of relativity. Prior to his pioneering work, scientists had two separate theories to explain physical phenomena: Isaac Newton's laws of physics described the motion of massive objects, while James Clerk Maxwell's electromagnetic models explained the properties of light. However, in 1905, Einstein based a work on special relativity on two postulates: * The laws of physics are invaria ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
K-calculus Diagram For Lorentz Transform
Bondi ''k''-calculus is a method of teaching special relativity popularised by Sir Hermann Bondi, that has been used in university-level physics classes (e.g. at The University of Oxford), and in some relativity textbooks. The usefulness of the ''k''-calculus is its simplicity. Many introductions to relativity begin with the concept of velocity and a derivation of the Lorentz transformation. Other concepts such as time dilation, length contraction, the relativity of simultaneity, the resolution of the twins paradox and the relativistic Doppler effect are then derived from the Lorentz transformation, all as functions of velocity. Bondi, in his book ''Relativity and Common Sense'', first published in 1964 and based on articles published in ''The Illustrated London News'' in 1962, reverses the order of presentation. He begins with what he calls "a fundamental ratio" denoted by the letter k (which turns out to be the radial Doppler factor).d'Inverno (1992), p.40 From this he explain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Velocity-addition Formula
In relativistic physics, a velocity-addition formula is a three-dimensional equation that relates the velocities of objects in different reference frames. Such formulas apply to successive Lorentz transformations, so they also relate different frames. Accompanying velocity addition is a kinematic effect known as Thomas precession, whereby successive non-collinear Lorentz boosts become equivalent to the composition of a rotation of the coordinate system and a boost. Standard applications of velocity-addition formulas include the Doppler shift, Doppler navigation, the aberration of light, and the dragging of light in moving water observed in the 1851 Fizeau experiment. The notation employs as velocity of a body within a Lorentz frame , and as velocity of a second frame , as measured in , and as the transformed velocity of the body within the second frame. History The speed of light in a fluid is slower than the speed of light in vacuum, and it changes if the fluid is moving al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
K-calculus Diagram For Composition
Bondi ''k''-calculus is a method of teaching special relativity popularised by Sir Hermann Bondi, that has been used in university-level physics classes (e.g. at The University of Oxford), and in some relativity textbooks. The usefulness of the ''k''-calculus is its simplicity. Many introductions to relativity begin with the concept of velocity and a derivation of the Lorentz transformation. Other concepts such as time dilation, length contraction, the relativity of simultaneity, the resolution of the twins paradox and the relativistic Doppler effect are then derived from the Lorentz transformation, all as functions of velocity. Bondi, in his book ''Relativity and Common Sense'', first published in 1964 and based on articles published in ''The Illustrated London News'' in 1962, reverses the order of presentation. He begins with what he calls "a fundamental ratio" denoted by the letter k (which turns out to be the radial Doppler factor).d'Inverno (1992), p.40 From this he explain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radar
Radar is a detection system that uses radio waves to determine the distance (''ranging''), angle, and radial velocity of objects relative to the site. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. A radar system consists of a transmitter producing electromagnetic waves in the radio or microwaves domain, a transmitting antenna, a receiving antenna (often the same antenna is used for transmitting and receiving) and a receiver and processor to determine properties of the objects. Radio waves (pulsed or continuous) from the transmitter reflect off the objects and return to the receiver, giving information about the objects' locations and speeds. Radar was developed secretly for military use by several countries in the period before and during World War II. A key development was the cavity magnetron in the United Kingdom, which allowed the creation of relatively small systems with sub-meter resolution. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
K-calculus Diagram For Radar Measurements And Velocity
Bondi ''k''-calculus is a method of teaching special relativity popularised by Sir Hermann Bondi, that has been used in university-level physics classes (e.g. at The University of Oxford), and in some relativity textbooks. The usefulness of the ''k''-calculus is its simplicity. Many introductions to relativity begin with the concept of velocity and a derivation of the Lorentz transformation. Other concepts such as time dilation, length contraction, the relativity of simultaneity, the resolution of the twin paradox, twins paradox and the relativistic Doppler effect are then derived from the Lorentz transformation, all as functions of velocity. Bondi, in his book ''Relativity and Common Sense'', first published in 1964 and based on articles published in ''The Illustrated London News'' in 1962, reverses the order of presentation. He begins with what he calls "a fundamental ratio" denoted by the letter k (which turns out to be the radial Doppler factor).d'Inverno (1992), p.40 From thi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
K-calculus Diagram For The Twins Paradox
Bondi ''k''-calculus is a method of teaching special relativity popularised by Sir Hermann Bondi, that has been used in university-level physics classes (e.g. at The University of Oxford), and in some relativity textbooks. The usefulness of the ''k''-calculus is its simplicity. Many introductions to relativity begin with the concept of velocity and a derivation of the Lorentz transformation. Other concepts such as time dilation, length contraction, the relativity of simultaneity, the resolution of the twins paradox and the relativistic Doppler effect are then derived from the Lorentz transformation, all as functions of velocity. Bondi, in his book ''Relativity and Common Sense'', first published in 1964 and based on articles published in ''The Illustrated London News'' in 1962, reverses the order of presentation. He begins with what he calls "a fundamental ratio" denoted by the letter k (which turns out to be the radial Doppler factor).d'Inverno (1992), p.40 From this he explains ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
K-calculus Diagram For K-factor Definition
Bondi ''k''-calculus is a method of teaching special relativity popularised by Sir Hermann Bondi, that has been used in university-level physics classes (e.g. at The University of Oxford), and in some relativity textbooks. The usefulness of the ''k''-calculus is its simplicity. Many introductions to relativity begin with the concept of velocity and a derivation of the Lorentz transformation. Other concepts such as time dilation, length contraction, the relativity of simultaneity, the resolution of the twins paradox and the relativistic Doppler effect are then derived from the Lorentz transformation, all as functions of velocity. Bondi, in his book ''Relativity and Common Sense'', first published in 1964 and based on articles published in ''The Illustrated London News'' in 1962, reverses the order of presentation. He begins with what he calls "a fundamental ratio" denoted by the letter k (which turns out to be the radial Doppler factor).d'Inverno (1992), p.40 From this he explains ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hermann Bondi
Sir Hermann Bondi (1 November 1919 – 10 September 2005) was an Austrian-British mathematician and cosmologist. He is best known for developing the steady state model of the universe with Fred Hoyle and Thomas Gold as an alternative to the Big Bang theory. He contributed to the theory of general relativity,Obituaries: Professor Sir Hermann Bondi(12 September 2005) in ''The Independent''. Professor Sir Hermann Bondi(2005-09-13) in ''The Telegraph''. Sir Hermann Bondi(2005-09-14) in ''The Guardian''. Sir Hermann Bondi: 1919–2005(2005-09-14) in ''Physics World'', IOP. Black hole scientist Bondi dies(2005-09-17), BBC News. and was the first to analyze the inertial and gravitational interaction of negative mass and the first to explicate correctly the nature of gravitational waves. In his 1990 autobiography, Bondi regarded the 1962 work on gravitational waves as his "best scientific work". Early life Bondi was born in Vienna, the son of a Jewish medical doctor. He was broug ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Illustrated London News
''The Illustrated London News'' appeared first on Saturday 14 May 1842, as the world's first illustrated weekly news magazine. Founded by Herbert Ingram, it appeared weekly until 1971, then less frequently thereafter, and ceased publication in 2003. The company continues today as Illustrated London News Ltd, a publishing, content, and digital agency in London, which holds the publication and business archives of the magazine. History 1842–1860: Herbert Ingram ''The Illustrated London News'' founder Herbert Ingram was born in Boston, Lincolnshire, in 1811, and opened a printing, newsagent, and bookselling business in Nottingham around 1834 in partnership with his brother-in-law, Nathaniel Cooke.Isabel Bailey"Ingram, Herbert (1811–1860)" ''Oxford Dictionary of National Biography'', Oxford University Press, 2004 accessed 17 September 2014] As a newsagent, Ingram was struck by the reliable increase in newspaper sales when they featured pictures and shocking stories. Ingram beg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
