, the Metoniccycle or Enneadecaeteris from Greek words for nineteen years is a period of very close ... are shorter than 235 synodic months by about 2 hours. The Metoniccycle s error is then one full ... calendar s , the years 3, 6, 8, 11, 14, 17, and 19 are the long 13 month years of the Metoniccycle. This cycle can be used to predict eclipse s, forms the basis of the Greek and Hebrew calendars, and is used ... calendar is a perpetual calendar based on the 19 year long Metoniccycle. Also known as a Rune ... on cycles of 19 years. Further details The Metoniccycle is related to two less accurate subcycles ... day cycle gives a year length of 365 1 4 1 76 days the unrounded cycle ... the nineteen year period. Meton introduced the cycle in circa 432 BC but it was actually known earlier by Babylonian astronomers. The cycle was used in the Babylonian calendar , the medieval computus i.e. the calculation of the date of Easter and still regulates the 19 year cycle of intercalary ... 384 day years 3.6 days 235 synodic month s lunar phases 6939.688 days Metonic period by definition ... days Note that the 19 year cycle is also close to somewhat more than half a day to 255 Month Draconic month draconic month s, so it is also an eclipse cycle , which lasts only for about 4 or 5 recurrences of eclipses. The Octon eclipse cycle Octon is a 1 5 of a Metoniccycle 47 synodic months, 3.8 years , and it recurs about 20 to 25 cycles. This cycle appears to be a coincidence. The periods of the Moon ..., and have no known physical resonance . An example of a non coincidental cycle is the orbit of Mercury ... 4th century BC knew of the 19 year cycle, but the Babylonians applied it since the late sixth century ... the cycle to a whole number 6940 of days, obtained by 125 long months of 30 days and 110 short months of 29 days. In the following century Callippus developed the Callippic cycle of four 19 year periods for a 76 year cycle with a mean year of exactly 365.25 days. See also Antikythera mechanism Bah ... more details
wiktionarypar cycle cyclic cyclical tocright Cycle , and in some cases cyclic , may refer to A process that returns to its beginning and repeats itself in the same sequence. Such processes are seen in many fields, such as physics, mathematics, biology, astronomy, economics, audio frequency, etc. Bicycle or Motorcycle See also List of cycles Chemistry Cyclic compound Economics Business cycle , economy wide fluctuations in production or economic activity over several months or years Mathematics Algebraic cycle and Hodge cycle , homology classes in algebraic geometry Cycle algebraic topology , a simplicial chain with zero boundary Cycle graph theory , a nontrivial path in a graph from a node to itself Cycle mathematics , a basic permutation all permutations are products of cycles Cyclic mathematics shows other terms in mathematics beginning with cyclic or cycle Turn geometry or cycle, a unit of plane angle equal to 360 degrees Music Cycle music , a section of a piece that is repeated or repeatable Cyclic form , a technique of construction involving multiple sections or movements Cycles Cartel album Cycles Cartel album Cycles David Darling album Cycles David Darling album Cycles Doobie ... cycle , a collection of pitch classes generated from a sequence the same interval class Miscellaneous Battery cycle , charging and discharging a rechargeable battery Cyclic flower , in botany, one way in which flower parts may be arranged Cycle baseball , a single, double, triple, and home run in any order by the same player in one game Cycle film Cycle film , a 2008 Malayalam film Cycles render ... control for helicopters Instruction cycle , the time period during which a computer processes a machine language instruction Social cycle various cycles in social sciences See also lookfrom intitle ... Zyklus el es Ciclo desambiguaci n eo Ciklo fr Cycle io Ciklo hu Ciklus egy rtelm s t lap ja no Kretsl p pl Cykl ru simple Cycle sk Cyklus sv Cykel olika betydelser uk ... more details
For the baseball term Hitting for the cycle Unreferenced date September 2011 Expand Persian fa yes date December 2009 Infobox film name image alt caption director Dariush Mehrjui producer writer Dariush Mehrjui story Gholam Hossein Saedi based on The play Aashghaal duni by Gholam Hossein Saedi starring Saeed Kangarani br Ezzatollah Entezami br Ali Nassirian br Esmail Mohammadi br Fourouzan br Bahman Fersi music Hormoz Farhat cinematography Houshang Baharlou editing Talat Mirfendereski studio distributor released 1975 1978 in Iran runtime 101 minutes country Iran language Persian budget gross Over 16 million Iranian rial rials The Cycle , Dayereh ye Mina is a 1975 Iran Iranian film directed by Dariush Mehrjui . It was Iran s List of submissions to the 50th Academy Awards for Best Foreign Language Film submission for Best Foreign Language Film at the 50th Academy Awards , the first year that Iran participated in the award. The film was banned for three years before being given permission to release, and was finally released in Iran on April 12, 1978. The movie s plot centered on the illegal trade in blood donations against the backdrop poverty and life in shanty towns . http tehranavenue.com article.php?id 807 A young man, Ali Saeed Kangarani , takes his sick father Esmail Mohammadi to a hospital in Tehran. When his father is unable to be admitted, they wait outside the hospital and meet Sameri Ezzatollah Entezami . Dr. Sameri offers them enough money for Ali s father s treatment if they assist him with some work. They meet him the next morning at a crossroads and get in a truck with some other people, unaware of what they will be doing or where they will be going. They arrive at a laboratory, where Ali s father is asked to give blood. He refuses, but Ali agrees to have his blood taken, and for that he is given 20 Iranian toman tomans . Sameri deals .... External links imdb title 0077403 Dariush Mehrjui DEFAULTSORT Cycle Category 1975 films Category ... more details
The Greek astronomer Hipparchus introduced two cycles that have been named after him in later literature. The first is described in Ptolemy s Almagest IV.2. Hipparchus constructed a cycle by multiplying by 17 a cycle due to the Chaldea n astronomer Kidinnu , so as to closely match an integer number of synodic month s 4267 , anomalistic month s 4573 , years 345 , and days 126007 about 1 hour it is also close to a half integer number of draconic month s 4630.53... , so it is an eclipse cycle . By comparing his own eclipse observations with Babylonian records from 345 years earlier, he could verify the accuracy of the various periods that the Chaldean astronomers used. The second is a calendar cycle Hipparchus proposed a correction to the Calippic cycle of 76 years , which itself was proposed as a correction to the Metonic cycle of 19 years . He may have published it in the book Peri eniaus ou meg thous On the Length of the Year , which is lost. From solstice observations, Hipparchus found that the tropical year is about 1 300 of a day shorter than the 365 1 4 days that Calippus used see Almagest III.1 . So he proposed to make a 1 day correction after 4 Calippic cycles, such that 304 years 3760 lunations 111035 days. This is a very decent approximation for an integer number of lunations in an integer number of days error only 0.014 days . But it is in fact 1.37 days longer than 304 tropical years the mean tropical year is actually about 1 128 day 11 minutes 15 seconds shorter than the Julian year calendar Julian calendar year of 365.25 days. These differences cannot be corrected with any cycle that is a multiple of the 19 year cycle of 235 lunations it is an accumulation of the mismatch between years and months in the basic Metonic cycle, and the lunar months need to be shifted systematically by a day with respect to the solar year i.e. the Metonic cycle itself needs to be corrected after every 228 years. Greek astronomy DEFAULTSORT Hipparchic Cycle Category Ancient Gr ... more details
, in other words the cycle drifts another day late per 130 10 11 years, which is considerably worse than the drift of the unrounded Metoniccycle . If the Callippic cycle is considered as closer to its ... as the unrounded Metoniccycle within a few seconds per year . If it is taken as 940 lunations less ...In astronomy and calendar studies, the Callippic cycle or Calippic is a particular approximate Least common multiple common multiple of the year specifically the tropical year and the Month Synodic month synodic month , that was proposed by Callippus in 330 BC . It is a period of 76 years, as an improvement on the 19 year Metoniccycle . A century before Callippus, Meton discovered the cycle of 19 ... day 365d 6h 00m 00s , so he multiplied the 19 year cycle by 4 to reach an integer number of days, and then dropped 1 day from the last 19 year cycle. Thus he constructed a cycle of 76 years that contains 940 lunations and 27,759 days, and has been called the Callippic after him. Although the cycle ... it grossly too short, and it will also grossly drift ahead with respect to the mean lunar cycle at the rate of 1 940 of a day 1 minute 31 seconds per lunar month. If the cycle length is truncated to 27,758 ... per year, and it will drift ahead of the mean lunar cycle by about 3 4 940 day 1 minute 9 seconds per lunar month. Altogether, the purported accuracy of this cycle is not impressive, but it is of historical interest. The first year of the first Callippic cycle began at the summer solstice of 330 BC ... of the first Callippic cycle 283 BC , when on the eighth of Anthesterion , the Pleiades star cluster Pleiades were Occultation occulted by the Moon . ref name Evans Evans, James. The Callippic Cycle ... calendar . Also Hipparchus invented his own Hipparchic cycle Hipparchic calendar cycle as an improvement upon the Callippic cycle. Ptolemy s Almagest provided some conversions between the Callippic ... Greek astronomy DEFAULTSORT Callippic Cycle Category Ancient Greek astronomy Category Calendars Category ... more details
saros s 0i s 6585.32 223 241.999 238.992 18.999 18.030 Metoniccycle 10i 15s 6939.69 235 255.021 ... 5 of the Metoniccycle, and a fairly decent short eclipse cycle, but poor in anomalistic returns ... saros apart very similar. Metoniccycle or Enneadecaeteris This is nearly equal to 19 tropical year ... one saros earlier. Callippic cycle 441 hollow months and 499 full months thus 4 Metonic Cycles minus ... cycle. Eclipse s may occur repeatedly, separated by certain intervals of time these intervals ... to same node , or an integer number return to opposite node . So an eclipse cycle is any period P ... the lunar cycle. This varying distance changes the apparent diameter of the Moon, and therefore ... full moon cycle of about 14 lunations in the timings and appearances of full and new Moons. The Moon ... timing , and changing the apparent lunar angular diameter by about 6 . An eclipse cycle must ... an eclipse cycle. These fractions can be found by the method of continued fractions this arithmetical ... SM decimal named cycle if any 2 2 1 2 5 11 5 2.2 1 13 6 2.166666667 semester 6 89 41 2.170731707 hepton ... cycle 5 5 1 5 1 6 1 6 12 1 semester 6 41 7 5.857142857 hepton 1 47 8 5.875 47 4 octon 1 88 15 5.866666667 tzolkinex 1 135 23 5.869565217 tritos 1 223 38 5.868421053 223 19 Saros cycle saros 1 358 ... cycle. Less accurate cycles may be constructed by combinations of these. Eclipse cycles ... below, and several notable cycles have their own pages. class wikitable sortable cycle formula ... 669 725.996 716.976 56.996 54.090 Callippic cycle 40i 60s 27,758.75 940 1020.084 1007.411 80.084 76.001 triad 3i 0s 31,715.85 1074 1165.500 1151.021 91.500 86.835 Hipparchic cycle 25i 21s 126,007.02 ... alternate between lunar and solar with each cycle, occurring at the same node and with similar characteristics ... 29 A Catalogue of Eclipse Cycles , Robert Harry van Gent ref Tritos A mediocre cycle, relates ... will have similar properties. Saros The best known eclipse cycle, and one of the best for predicting ... more details
In mathematics , the term cycle decomposition can mean In graph theory , a Cycle decomposition graph theory cycle decomposition is a partitioning of the vertices of a graph into subsets, such that the vertices in each subset lie on a Cycle graph theory cycle . In group theory , a Cycle decomposition group theory cycle decomposition is a useful convention for expressing a permutation in terms of its constituent cycles. mathdab ... more details
In graph theory and combinatorial optimization , cycle cover may have the following meanings Vertex cycle cover Vertex disjoint cycle cover Edge cycle cover Other possible meanings include A cover for a bicycle Vehicle insurance for a bicycle disambig ... more details
Wiktionary Life cycle or lifecycle may refer to Biological life cycle Enterprise life cycle Life cycle assessment New product development Product lifecycle disambiguation , various meanings Project life cycle Records Life Cycle , from creation to archiving or destruction Software release life cycle Systems Development Life Cycle Adobe LiveCycle SOA Lifecycle Object lifetime of an object in object oriented programming Lifecycles A Story of AIDS in Malawi , a 2003 Canadian film Disambig de Lebenszyklus es Ciclo de vida eo Vivciklo fr Cycle de vie gl Ciclo de vida pt Ciclo de vida desambigua o zh ... more details
thermodynamics cTopic Processes and Cycles The Kleemenko cycle or one flow cascade cycle is a single stream mixed refrigerant technique used to cool or Liquefaction of gases liquify gases . The term Kleemenko Cycle is used in refrigeration if multi component refrigerants MCR are used in a cycle ref http www.cryogenicsociety.org resources cryo central history of cryogenics History of cryogenics ref . The Russians Russian scientist A.P. Kleemenko described the one flow cascade cycle in the Proceedings of XIII International Conference of Refrigeration in Copenhagen, Denmark, in 1959. It was published in progress in refrigeration science and technology , Volume I Pergamon Press in 1960 pps. 34 39 ref http www.freepatentsonline.com 3592015.html rectification column with two component closed heat exchange cycle ref . See also Hampson Linde cycle Timeline of low temperature technology References reflist External links http cat.inist.fr ?aModele afficheN&cpsidt 1809635 Kleemenko cycle coolers Low cost refrigeration at cryogenic temperatures Thermodynamic cycles state uncollapsed Category Thermodynamic cycles physics stub ... more details
Merge to V lsungasaga date January 2010 Unreferenced date December 2009 The V lsung Cycle is a series of legend s in Norse mythology that were first recorded in Middle Ages medieval Iceland . The original Icelandic tales were greatly expanded with native Scandinavian folklore , including that of Helgi Hundingsbane , which, in turn, originally appears to have been a separate tradition the Ylfing s. Mythological material in this Cycle includes the Volsunga Saga , the tale of the tr Otter s Ransom , and others. The V lsung Cycle is partially based on the same subject matter as the Middle High German epic poem Niebelungenlied . See also Volsung Tyrfing Cycle V lsung Norse mythology DEFAULTSORT Volsung Cycle Category Norse mythology Category V lsung cycle Europe myth stub bg el sv V lsungacykeln ... more details
About connected, 2 regular graphs infobox graph name Cycle graph image Image Undirected 6 cycle.svg 160px image caption A cycle graph of length 6 vertices n edges n automorphisms 2 n D sub n sub chromatic number 3 if n is odd br 2 if n is even chromatic index 3 if n is odd br 2 if n is even girth n spectrum 2 cos 2 k n sup 1 sup k 1,..., n notation math C n math properties Regular graph 2 regular ... , a cycle graph or circular graph is a graph mathematics graph that consists of a single Cycle graph theory cycle , or in other words, some number of vertices connected in a closed chain. The cycle graph ... vertex has exactly two edges incident with it. Terminology There are many synonym s for cycle graph . These include simple cycle graph and cyclic graph , although the latter term is less often used, because ... theorists, cycle , polygon , or n gon are also often used. A cycle with an even number of vertices is called an even cycle a cycle with an odd number of vertices is called an odd cycle . Properties A cycle ... colorable and 3 edge colorable, for any number of vertices A unit distance graph In addition As cycle ... cycle are the same as those of a regular polygon with n sides, the dihedral group of order 2 n . In particular ... edge, so the n cycle is a symmetric graph . Directed cycle graph Image DC8.png frame right A directed cycle graph of length 8 A directed cycle graph is a directed version of a cycle graph, with all the edges ... one edge or arc from each directed cycle is called a feedback arc set . Similarly, a set of vertices containing at least one vertex from each directed cycle is called a feedback vertex set . A directed cycle graph has uniform in degree 1 and uniform out degree 1. Directed cycle graphs are Cayley graph s for cyclic group s see e.g. Trevisan . See also commons category Cycle graphs ... title Cycle Graph discussion of both 2 regular cycle graphs and the group theoretic concept of cycle ... graf es Grafo ciclo eo Cikla grafeo fa fr Graphe cycle he hu K rgr f ja ... more details
about a concept in graph theory space allocated to bicycles segregated cycle facilities In graph theory , an area of mathematics, a cycle space is a vector space defined from an undirected graph elements of the cycle space represent formal combinations of cycle graph theory cycles in the graph. Cycle spaces allow one to use the tools of linear algebra to study graphs. A cycle basis is a set of cycles that generates the cycle space. The binary cycle space Let G be a finite simple undirected graph ... linear subspace subspace of the edge space is the binary cycle space . It is by definition the subspace generated by the edge sets of all the simple cycle s of the graph. The addition of two cycles shown ... cycle but an edge disjoint union of two simple cycles. center Image cycle space addition.png Example for adding two cycles center There are a number of basic results concerning the cycle space. The symmetric difference of two simple cycles is either a simple cycle or a union of edge disjoint simple cycles. Using this observation, one can show that an edge set is in the cycle space if and only if it is a disjoint union of simple cycles. Phrased another way the set F of edges is in the cycle space ... all cycles to generate the cycle space if G is connected and any spanning tree mathematics spanning tree T of G is given, then the fundamental cycle s of T form a basis linear algebra basis of the cycle space, known as a cycle basis . The Hamel dimension dimension of the cycle space of a connected ... of interior faces of an embedding of the graph also provides a cycle basis. An important application of the cycle space are Dual graph Whitney s planarity criterion and Mac Lane s planarity criterion , which give an algebraic characterization of the planar graph s. The integral cycle space The foregoing ... to choose an arbitrary graph graph theory orientation of the graph in order to define the cycle space, but the definition does not depend on that choice. An integral cycle is a function such that the sum ... more details
Unreferenced stub auto yes date December 2009 Cycle and Carriage is a company based in Singapore and Malaysia . The company was integrated into the Jardine Matheson Group by 2002 and is now named Jardine Cycle and Carriage Limited . Cycle and Carriage was founded by the Chua brothers in 1899 in Kuala Lumpur as Federal Stores . The company distributed many products. Cycle and Carriage was listed on the Bursa Malaysia Stock Exchange of Malaysia and Singapore in 1977 and was part of the Straits Times Index , before being delisted upon merger. Cycle and Carriage is one of the premier automotive groups in Singapore and is engaged in the retail, distribution and provision of after sales service of Mercedes Benz, Mitsubishi, Kia & Citroen motor vehicles. Category Defunct companies of Singapore Singapore company stub ... more details
In mathematics, a heteroclinic cycle is an invariant set in the phase space of a dynamical system . It is a topological circle of equilibrium point s and connecting heteroclinic orbit s. If a heteroclinic cycle is asymptotically stable, approaching trajectories spend longer and longer periods of time in a neighbourhood of successive equilibria. Robust heteroclinic cycles A robust heteroclinic cycle is one which persists under small changes in the underlying dynamical system. Robust cycles often arise in the presence of symmetry or other constraints which force the existence of invariant hyperplanes. An prototypical example of a robust heteroclinic cycle is the Guckenheimer&ndash Holmes cycle. See also Heteroclinic bifurcation Heteroclinic network References John Guckenheimer Guckenheimer J and Philip Holmes Holmes, P , 1988, Structurally Stable Heteroclinic Cycles, Math. Proc. Cam. Phil. Soc. 103 189 192. Category Dynamical systems ... more details
Vicious Cycle may refer to Vicious Cycle album Vicious Cycle album , a 2003 album by Lynyrd Skynyrd Vicious Cycle Software , a video game development company Virtuous circle and vicious circle , or vicious cycle, a complex of events that reinforces itself through a feedback loop disambiguation Short pages monitor This long comment was added to the page to prevent it from being listed on Special Shortpages. It and the accompanying monitoring template were generated via Template Long comment. Please do not remove the monitor template without removing the comment as well. ... more details
Infobox album See Wikipedia WikiProject Albums Name Cycle Type Studio Album Artist Merzbow Cover Cycle.jpg Released 30 June, 2003 Recorded March May, 2003 at Bedroom in Tokyo , Japan Genre Noise music Length 69 49 Label Very Friendly Producer Masami Akita Last album Timehunter br 2003 This album Cycle br 2003 Next album Animal Magnetism Merzbow album Animal Magnetism br 2003 Cycle is a studio album by the Japanese noise musician, Merzbow . Track listing All music by Masami Akita . tracklist title1 Cycle Part. 1 length1 29 56 title2 Cycle Part. 2 length2 39 53 Personnel Masami Akita Yonosuke & Yoshino chorus Merzbow Category Merzbow albums Category 2003 albums ... more details
In ecology or geoscience , the iron cycle is the biogeochemical cycle of iron through landform s, the Earth s atmosphere atmosphere , and ocean s. The iron cycle affects dust deposition and Particulate aerosol iron bioavailability. . References Jickells, T. D., et al. 2005, April 1 . Global iron connections between desert dust, ocean biogeochemistry, and climate. In Science, 308 , 67 &ndash 71. Category Geochemistry Category Geological processes Geology stub th ... more details
Image Walk cycle poses.jpg right thumb Character Walk Cycle Image 4 frame walk cycle.gif right thumb Profile Walk Cycle In animation , a walk cycle is a series of Film frame frames or illustrations drawn in sequence that loop to create an animation of a walking character. The walk cycle is looped over and over, thus having to avoid animating each step again. Creating a walk cycle Walk cycles can be broken up into 4 key frame , namely Forward Contact Point , Passing Pose1 , Back Contact Point and Passing Pose 2 . Frames that are drawn between these key poses traditionally known as in betweens Inbetweening are either hand drawn or using computer software to interpolate them. Image Breakdown of Walk Cycle.jpg left thumb Breakdown of Walk Cycle Besides the apparent move of the legs, many more details are necessary for a convincing walk cycle, like animation timing, movement of the arms, head and torsion of the whole body. For example in ref name idleworm http www.idleworm.com how anm 02w walk1.shtml Walkcycle tutorial from http www.idleworm.com ref . There exist many techniques to create walk cycles. Traditionally walk cycles are hand drawn but over time with the introduction of new technologies for new mediums, walk cycles can be made in pixel art , 2d computer graphics , 3D computer graphics , stop motion method, cut out animation or using techniques like rotoscoping . References references External links http www.awn.com qas 60.html An article with example video and animation http www.devilsgarage.com tutorials easy walk cycle Walk Cycle Tutorial on how to create a walks using Adobe s Flash http www.devilsgarage.com wp content uploads 2010 05 4 frame walk cycle.fla download source file with illustrations and video http www.devilsgarage.com tutorials 2 frame walk cycle Walk Cycle Tutorial on how to create a 2 frame walk. Category Animation techniques animation stub ... more details
A symphonic song cycle can either refer to a symphony composed of separate Movement music movements played consecutively or to a set of symphonic works linked by theme, common composer, or common conductor. A symphonic cycle should not be confused with the closely related song cycle . Symphonic cycle as a whole symphonic work A symphony is essentially cyclic in nature, typically containing four interconnected movements as part of a larger work. At first the movements of a symphony were meant to be distributed among other works arias , overtures , concertos in extended evening social events at which music served a background or occasionally center role. The movements were meant to be connected and identified as part of the symphonic cycle through recall and quotation of earlier movements, and the finale movement meant to be seen as a destination and recap. It was not until Beethoven that a symphonic cycle came to be seen as a work needing isolated, consecutive play of the constituent movements. ref cite book last Brown first A. Peter title The Symphonic Repertoire publisher Indiana University Press year 2002 isbn 025333487X ref Symphonic cycle as a set of works A symphonic cycle may also refer to a set of symphonies linked through a common composer or conductor. For example, the symphonic repertoire of Ludwig van Beethoven , consisting of his nine numbered symphonies, may be wholly referred to as the Beethoven symphonic cycle. Another conception of the symphonic cycle is that of a set of composer s works as performed and recorded on audio visual media by a common conductor. This practice came into existence with the establishment of audio record companies in the 1920s. ref cite web url http history.sandiego.edu GEN recording notes.html title Recording Technology History author Schoenherr, Steven E. accessdate 26 November 2008 date 6 July 2005 ref A symphonic cycle of particular ... symphonic works of Gustav Mahler . The Bernstein Mahler cycle became an advertising mechanism by which ... more details
Unreferenced date December 2009 In geoscience s, an annual cycle is the part of a measured quantity s fluctuation that is attributed to Earth s changing position in orbit over the course of the year. Such quantities might be influenced directly e.g. incoming solar radiation at a point at the surface or indirectly e.g. stratosphere stratospheric westerlies and polar easterlies easterlies over the winter and summer hemispheres, respectively by orbital position. The annual cycle is commonly estimated from observational data or model output by taking the average of all Januaries, all Februaries, and so forth. If the observational record is long enough and conditions are stationary i.e. there is no significant long term trend , a meaningful annual cycle will result that can be used to calculate an anomaly time series . Note that grouping data according to the months in the Gregorian calendar makes an implicit assumption that the annual cycle in question is the vernal equinox tropical year followed by that calendar. However, the annual cycle for some phenomena may be a different kind of year see the seasonal year article for discussion. DEFAULTSORT Annual Cycle Category Earth sciences Geology stub zh ... more details
thermodynamics cTopic Processes and Cycles The Siemens cycle is a technique used to cool or Liquefaction of gases liquefy gases . ref http www.chem.ufl.edu itl 4411L f00 gamma gamma.html Adiabatic Expansion Cooling of Gases ref . A gas is compressed, leading to an increase in its temperature by Gay Lussac s law Gay Lussac s law relating pressure and temperature . The compressed gas is then cooled by a heat exchanger , then the cool, compressed gas is allowed to decompress, further cooling it again by Gay Lussac s law . This results in a gas or liquefied gas that is colder than the original and at the same pressure. Carl Wilhelm Siemens patented the Siemens cycle in 1857 ref http kryolab.fysik.lu.se dokument e techn.html The Siemens cycle ref . See also Adiabatic process Gas compressor Hampson Linde cycle Regenerative cooling Timeline of low temperature technology References reflist Thermodynamic cycles state uncollapsed DEFAULTSORT Siemens Cycle Category Thermodynamic cycles physics stub de Siemens Kreisprozess fr Cycle de Siemens nl Siemens cyclus ... more details
noref date November 2011 Image UCI Cycle Ball 2on1.jpg thumb Cycle Ball Cycle ball , also known as radball from German language German , is a sport similar to football soccer football played on bicycle s. The two people on each team ride a fixed gear bicycle with no brakes or freewheel. The ball is controlled by the bike and the head, except when defending the goal. The sport was introduced in 1893 by a German American, Nicholas Edward Kaufmann. Its first world championships were in 1929. Cycle ball is popular in Austria , Belgium , the Czech Republic , Denmark , France , Germany , Italy , Japan , Russia , Sweden , and Switzerland . The most successful players were the Posp il brothers of Czechoslovakia , world champions 20 times between 1965 and 1988. Closely related is artistic cycling in which the athletes perform a kind of gymnastics on bikes. See also Cycle polo External links http www.webkuehn.de hobbys radball index en.htm List with over 420 cycle ball clubs http oldsite.uci.ch english indoor index.htm UCI s introduction to cycle ball and artistic cycling Category Team sports Category Cycling Team Sport cs Kolov de Radball eo Radpilko fr Cycle ball lt Velobolas nl Cyclobal ja pl Pi ka rowerowa ru uk zh ... more details
Unreferenced date January 2008 The Agricultural cycle is the annual cycle of activitites related to the growth and harvest of a agriculture crop . These activities include loosening the soil, seeding, special watering, moving plants when they grow bigger, and harvest ing, among others. See also French Republican Calendar Agri stub Category Agriculture Category Crops ar ... more details
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