The Ulamspiral , or prime spiral in other languages also called the Ulam Cloth is a simple method of visualizing ... year, Martin Gardner wrote about the Ulamspiral in his Recreational mathematics Mathematical Games column sfn Gardner 1964 p 122 the Ulamspiral featured on the front cover of the issue of Scientific American in which the column appeared. Construction Ulam constructed the spiral by writing down ... ing out Image Ulamspiral howto all numbers.svg 200px center Numbers from 1 to 49 placed in spiral order He then circled all of the prime numbers and he got the following picture Image Ulamspiral howto primes only.svg 200px center Small Ulamspiral Image Ulam 1.png right thumb Ulamspiral of size ... below is a 200 200 Ulamspiral, where primes are black. Diagonal lines are clearly visible, confirming ..., except for the number 2, are odd numbers. Since in the Ulamspiral adjacent diagonals are alternatively ... of the Ulamspiral. What is startling is the tendency of prime numbers to lie on some diagonals more ... Arthur C. Clarke describes the prime spiral seven years before it was discovered by Ulam. Apparently ... number spiral in finding prime rich quadratic polynomials in 1932, more than thirty years prior to Ulam ... explain some of the striking features of the Ulamspiral. This conjecture, which Hardy and Littlewood ... of the Ulamspiral making angles of 45 with the horizontal and vertical correspond to numbers of the form ... 2 sup 2 x 41 which forms a visible line in the Ulamspiral. The constant A for this polynomial is approximately ... of the Ulamspiral in 1994. In the Sacks spiral the non negative integers are plotted on an Archimedean spiral rather than the square spiral used by Ulam, and are spaced so that one square number perfect square occurs in each full rotation. In the Ulamspiral, two squares occur in each rotation .... In the Ulamspiral, Euler s polynomial forms two diagonal lines, one in the top half of the figure ... scn Spirali di Ulam sl Ulamov prt fi Ulamin spiraali sv Ulams spiral ... more details
Ulam as a surname may refer to Adam Ulam 1922 2000 , Polish American professor of History and Political Science at Harvard University Stanislaw Ulam 1909 1984 , Polish born American mathematician who participated in the Manhattan Project Ulam conjecture Ulam s game Ulam numbers Ulamspiral Borsuk Ulam theorem Hyers Ulam Rassias stability Fermi Pasta Ulam problem Mazur Ulam theorem Teller Ulam design Ulam also refers to The antechamber to the Temple in Jerusalem Ulam salad Ulam , a type of Malay salad See also ULAM , Naryan Mar Airport by ICAO airport code Category Jewish surnames surname ... more details
Hyers Ulam Rassias stability Fermi Ulam model Lucky number 1955 Ulamspiral 1963 Ulam conjecture ...Infobox Scientist box width 300px name Stanis aw Ulam image Stanislaw Ulam ID badge.png caption Ulam ... Mendez known for nuclear pulse propulsion br Teller Ulam design br Manhattan Project br Fermi Pasta Ulam experiment br Fermi Ulam model br Borsuk Ulam theorem br Mazur Ulam theorem br Hyers Ulam Rassias stability br Ulamspiral br Ulam conjecture in Number Theory br Ulam s Conjecture in Graph theory br Ulam numbers prizes Stanis aw Marcin Ulam April 13, 1909 &ndash May 13, 1984 was a renowned Poles ... Project and originated the Teller Ulam design of thermonuclear weapons . He also proposed the idea ... and algebraic topology . Biography Ulam was born in Lviv Lw w lang uk Lviv lang de Lemberg , Galicia ... anxious.htm Anxiously from Lw w Family Letters to Stanis aw M. Ulam A website dedicated to the Ulam ... . Ulam himself came to figure among the mathematicians of the Lw w School, playing a significant ... States Ulam went to the United States in 1938 as a Harvard Society of Fellows Harvard Junior Fellow . He visited Poland in summer 1939 and together with his brother, Adam Ulam Adam , escaped from Poland ... and again cause those nuclei to fission. Ulam realized that, Citation needed date July 2010 if the target ... or even more importantly it could increase Exponential growth exponentially . Ulam s realization ... World War several of Ulam s colleagues and peers had disappeared from campus. Ulam s friend John von Neumann invited him to a secret project in New Mexico which Ulam researched by taking out a book on New ... who had successively disappeared from the campus at UW. Ulam then joined the Manhattan Project at Los Alamos National Laboratory Los Alamos . ref The Day After Trinity An interview with Ulam 19 th ... interviews with several scientists who worked with him. One of them was Ulam. ref While at Los Alamos he also suggested the Monte Carlo method ref Metropolis, N and Ulam, S. 1949 The Monte ... more details
Ulam is a traditional salad produced from the leaves of Centella asiatica . Ulam is typically eaten with anchovy anchovies , cincalok or shrimp paste . It is recognised as a popular main dish in traditional Malaysia Malay villages. Fact date May 2009 Vegetables can be assumed to be ulam when eaten simply as it is, including cucumber , cabbage and eggplant . Another type of ulam is traditional ulam which is used more as a direct ingredient, such as in nasi ulamulam rice ref name recipe cite web url http peranakan.org.sg index.php?option com content&task view&id 24&Itemid 36 title Nasi ulam accessdate 2009 05 07 ref , nasi kerabu a type of bluish coloured rice and cooking with other fatty vegetables. It also has its uses in traditional medicine , such as diabetes and high blood pressure . Fact date May 2009 See also Malay cuisine References reflist Category Malaysian cuisine Category Malay cuisine ms Ulam ... more details
An Ulam number is a member of an integer sequence devised by and named after Stanislaw Ulam , who introduced it in 1964. ref harvs last Ulam year 1964a year2 1964b txt authorlink Stanislaw Ulam . ref The standard Ulam sequence the 1, 2 Ulam sequence starts with U sub 1 sub 1 and U sub ... 1 2 is an Ulam number and 4 1 3 is an Ulam number. The sum 4 2 2 is not, because the previous terms must be distinct. The integer 5 is not an Ulam ... OEIS id A002858 . The first Ulam numbers that are also prime number s are 2, 3, 11, 13, 47, 53, 97, 131 ... sequence There are infinitely many Ulam numbers. For, after the first n numbers in the sequence have ... many Ulam numbers, then the sum of the last two would also be an Ulam number &ndash a contradiction ... as a sum of two Ulam numbers, it would not necessarily be the smallest number with a unique representation. ref Ulam is said to have conjectured that the numbers have zero Natural density density , ref The statement that Ulam made this conjecture is in OEIS OEIS2C id A002858 , but Ulam does not address the density of this sequence in harvtxt Ulam 1964a , and in harvtxt Ulam 1964b he poses the question ... from harvtxt Ulam 1964b of the density of this sequence, again without conjecturing a value ... ref Generalizations The idea can be generalized as u , v Ulam numbers by selecting different starting values u , v . A sequence of u , v Ulam numbers is regular if the sequence of differences ... greater than three, the 2, v Ulam numbers are regular. When v is congruent to 1 mod 4 and at least five, the 4, v Ulam numbers are again regular. However, the Ulam numbers themselves do not appear ... 1994 . The regularity of the 4, v Ulam numbers was proven by harvtxt Cassaigne Finch 1995 ..., the Ulam numbers and the u , v Ulam numbers are 1 additive sequences. ref harvtxt Queneau 1972 ... on a sequence of Ulam url http www.jstor.org stable 2319404 volume 80 year 1973 . citation last Schmerl ... more details
Image Adam Ulam.jpg thumb right 200px Adam Ulam Adam Bruno Ulam 1922 2000 was an United States American professor of History and Political Science at Harvard University . Ulam was one of the world s foremost authorities on Russia and the Soviet Union , and author of twenty books and many articles. Biography Ulam was born on April 8, 1922 in Lw w Lviv , then Second Polish Republic Poland now Ukraine . After graduating from high school, he emigrated to the United States on or around August 20, 1939, to go to college. This was but days before the invasion of Poland German invasion of Poland which marked the beginning of the Second World War . His father had, at the last minute, changed his departure date from September 3 to August 20, most likely saving his life since Poland was invaded by Germany on September 1. His entire family, save for his brother Stanis aw Ulam , a famous mathematician and key contributor to the Manhattan Project , would perish in The Holocaust . After the United States entered the war, he tried to enlist in the army, but was rejected at first for having relatives living in enemy territory and later, after a second attempt, for near sightedness. He studied at Brown University , taught shortly at University of Wisconsin Madison , and obtained a Ph.D. from Harvard ... Kramer, Mark, Memorial Notice Adam Bruno Ulam 1922 2000 , Journal of Cold War Studies , Volume ... Bruno Ulam.html Crystal Reference Encyclopedia on Adam Bruno Ulam http daviscenter.fas.harvard.edu news events Ulam minute.doc Harvard News and Events Memorial Minute Adam Bruno Ulam read by Timothy J. Colton in 2002 and printed in the Harvard University Gazette http www.aulam.org index.htm Adam Ulam ... Ulam, Adam ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH PLACE OF BIRTH DATE OF DEATH PLACE OF DEATH DEFAULTSORT Ulam, Adam Category 1922 births Category 2000 deaths Category Jews from Galicia Eastern ... Category People from Lviv Category Deaths from lung cancer fr Adam Ulam ja pl Adam Ulam ... more details
dablink For other uses of this word, see spiral disambiguation . Refimprove date July 2007 Image NautilusCutawayLogarithmicSpiral.jpg ... in an approximately logarithmic spiral . In mathematics , a spiral is a curve which emanates from a central point, getting progressively farther away as it revolves around the point. Spiral or helix Image Schraube und archimedische Spirale.png right thumb An Archimedean spiral, a helix, and a conic spiral. While spiral and a helix are distinct as technical terms, a helix is sometimes described as a spiral in non technical usage. The two primary definitions of a spiral are provided by the American Heritage Dictionary ref name free http www.thefreedictionary.com spiralSpiral ref a. A curve on a plane ... of a spiral galaxy a Logarithmic spiral are examples of a spiral. The second definition is for the 3 Dimensional variant of a spiral, for example a conical spring device can be described as a spiral whereas ... of a helix typically remain static and do not grow like on a planar spiral. If they do, then the helix becomes a conic helix. You can make a conic helix with an Archimedean or equiangular spiral by giving height to the center point, thereby creating a cone shape from the spiral. ref http docs.autodesk.com ... at the bottom is an Archimedean spiral , while the green curve is a helix. A cross between a spiral ... A two dimensional spiral may be described most easily using polar coordinates , where the radius r ... . Some of the more important sorts of two dimensional spirals include The Archimedean spiral math r a b cdot theta math see also Involute The Euler spiral , Cornu spiral or clothoid Fermat s spiral math r theta 1 2 math The Fibonacci spiral and golden spiral special cases of the logarithmic spiral The hyperbolic spiral math r a theta math The Lituus mathematics lituus math r theta 1 2 math The logarithmic spiral math r a cdot e b theta math approximations of this are found in nature The Spiral of Theodorus an approximation of the Archimedean spiral composed of contiguous right triangles gallery ... more details
In mathematics , the Borsuk Ulam theorem , named after Stanis aw Ulam and Karol Borsuk , states that every continuous function from an n sphere n sphere into Euclidean space Euclidean n space maps some pair of antipodal point s to the same point. Two points on a sphere are called antipodal if they are in exactly opposite directions from the sphere s center. The case n 2 is often illustrated by saying that at any moment there is always a pair of antipodal points on the Earth s surface with equal temperatures and equal barometric pressures. This assumes that temperature and barometric pressure vary continuously. The Borsuk Ulam theorem was first conjectured by Ulam, and was proved by Borsuk in 1933. There is an elementary proof Citation needed date February 2011 that the Borsuk Ulam theorem implies the Brouwer fixed point theorem . A stronger statement related to Borsuk Ulam theorem is that every antipode preserving map math f mathbb S n to mathbb S n math has odd degree of a mapping degree . Corollaries No subset of R sup n sup is homeomorphic to S sup n sup . The Lusternik Schnirelmann theorem If the sphere S sup n sup is covered by n 1 open sets, then one of these sets contains a pair x , &minus x of antipodal points. this is equivalent to the Borsuk Ulam theorem The Ham sandwich theorem For any Compact space compact sets math A 1, ldots, A n math in R sup n sup ... Ulam theorem , Springer Verlag, Berlin, 2003. ISBN 3 540 00362 2. doi 10.1007 978 3 540 76649 0 . L ... Borsuk&ndash Ulam theorem implies the Brouwer fixed point theorem http www.math.cornell.edu hatcher AT ATpage.html Allen Hatcher Algebraic Topology free download DEFAULTSORT Borsuk Ulam Theorem ... theorems ca Teorema de Borsuk Ulam da Borsuk Ulams s tning de Satz von Borsuk Ulam fr Th or me de Borsuk Ulam ko it Teorema di Borsuk Ulam nl Stelling van Borsuk Ulam pl Twierdzenie Borsuka Ulama pt Teorema de Borsuk Ulam ru fi Borsukin Ulamin lause uk ... more details
DISPLAYTITLE Ulam raja Cosmos caudatus Taxobox name Ulam raja image image caption regnum Plant ae divisio wild cosmos classis ordo familia Compositae genus species binomial Cosmos caudatus binomial authority Ulam raja , literally meaning the King s salad , was brought by the Spaniards from Latin America , via the Philippines , to the rest of Southeast Asia . ref Bodeker, G. 2009 . Health and Beauty from the Rainforest Malaysian Traditions of Ramuan . Kuala Lumpur Didier Millet. ISBN 978 981 4217 91 0 ref Ulam, a Malay language Malay word used to describe a preparation that combines food, medicine and beauty is the widely popular Malay herbal salad. As a Malaysian delight, it is served throughout the country from major hotels for tourists to buffet lunches or dinners for the locals. Description Ulam Raja is an annual plant growing up 2m in height. The leaf leaves are soft and pungent while the stem is light green with a purplish hue and succulent. As night falls the leaves fold to close the terminal buds as the plant literally sleeps. The flowers can be found solitary or in a loose clusters and are produced on a single stalk on auxiliary heads. ref Hassan, Dr. W. E. 2006 . Healing Herbs of Malaysia Kuala Lumpur Federal Land Development Agency. ISBN 978 983 99544 2 5 ref Uses Found to have anti fungal and anti bacterial effects the Malay people believe that the herb is good for health and contains anti aging properties or awet muda, and that it tones up blood circulation, strengthens the bones and promotes fresh breath. Notes reflist References Hassan, Dr. W. E. 2006 . Healing Herbs of Malaysia . Kuala Lumpur Federal Land Development Agency. ISBN 978 983 99544 2 5 Bodeker, G. 2009 . Health and Beauty from the Rainforest Malaysian Traditions of Ramuan . Kuala Lumpur Didier Millet. ISBN 978 981 4217 91 0 DEFAULTSORT Ulam Raja Cosmos Caudatus Category Medicinal plants ms Ulam raja Cosmos caudatus ... more details
The stability problem of functional equation s originated from a question of Stanislaw Ulam , posed in 1940, concerning the stability of group homomorphism s. In the next year, D. H. Hyers gave a partial affirmative answer to the question of Ulam in the context of Banach space s. In 1978, Themistocles M. Rassias extended the theorem of Hyers by considering an unbounded Cauchy difference ref Th.M. Rassias, http www.jstor.org stable 2042795?seq 1 On the stability of the linear mapping in Banach spaces , Proc. Amer. Math. Soc. 72 1978 , 297 300. ref . The result of Th. M. Rassias has provided a lot of influence in the development of what is now known as Hyers Ulam Rassias stability of functional equation s. References Reflist Hyers Ulam Rassias stability , in Encyclopaedia of Mathematics, Supplement III, M. Hazewinkel ed. , Kluwer Academic Publishers, Dordrecht, 2001, pp.194 196. Soon Mo Jung, Hyers Ulam Rassias Stability of Functional Equations in Mathematical Analysis , Hadronic Press, Inc., Florida, 2001. Soon Mo Jung, Hyers Ulam Rassias Stability of Functional Equations in Nonlinear Analysis , Springer, New York, 2011 to appear . J. Chung, http www.sciencedirect.com science? ob ArticleURL& udi B6WK2 4DSPR9R 6& user 83473& coverDate 12 2F15 2F2004& rdoc 1& fmt high& orig search& origin ...& version 1& urlVersion 0& userid 83473&md5 32f25b33ce19cdf5b0fdf58031a327fc&searchtype a Hyers Ulam ... 4 441.pdf Hyers Ulam Rassias stability of Jordan homomorphisms on Banach algebras , J. Inequal ...&searchtype a A generalization of the Hyers Ulam Rassias stability of approximately ... for the generalized Hyers Ulam Rassias stability , Int. J. Nonlinear Anal. Appl. 1 2010 , No. 2, 6 ...&searchtype a Hyers Ulam Rassias stability of homomorphisms in quasi Banach algebras associated to the Pexiderized .... Wang, On the Hyers Ulam Rassias stability of Jensen s equation , Bull. Korean Math. Soc. 46 4 2009 ... a Hyers Ulam Rassias stability of a Jensen type functional equation , J. Math. Anal. Appl. 250 ... more details
In mathematics, the Mazur Ulam theorem states that if math V math and math W math are normed space s over R and the map mathematics map ping math f colon V to W math is a surjective isometry , then math f math is affine transformation affine . References cite book author Richard J. Fleming coauthors James E. Jamison title Isometries on Banach Spaces Function Spaces publisher CRC Press isbn 1584880406 page 6 year 2003 cite journal author Stanis aw Mazur authorlink Stanis aw Mazur coauthors Stanislaw Ulam title Sur les transformationes isom triques d espaces vectoriels norm s journal C. R. Acad. Sci. Paris volume 194 year 1932 pages 946 948 External links http www.helsinki.fi jvaisala mazurulam.pdf A proof PDF Category Normed spaces Category Mathematical theorems mathanalysis stub pl Twierdzenie Mazura Ulama ... more details
The Fermi&ndash Ulam model FUM is a dynamical system that was introduced by Poland Polish mathematician Stanislaw Ulam in 1961 . FUM is a variant of Enrico Fermi Enrico Fermi s primary work on acceleration of cosmic ray s, namely Fermi acceleration . The system consists of a particle that collides elastically between a fixed wall and a moving one, of infinite mass each. The walls represent the magnetic mirror s with whom the cosmic rays cosmic particles collide. A. J. Lichtenberg and M. A. Lieberman provided a simplified version of Fermi Ulam model FUM SFUM that derives from the Poincar map Poincar surface of section math x const. math and writes math u n 1 u n U mathrm wall varphi n , math extra blank line between two TeX displays for legibility math varphi n 1 varphi n frac kM u n 1 pmod k, math where math u n math is the velocity of the particle after the math n math th collision with the fixed wall, math varphi n math is the corresponding phase of the moving wall, math U mathrm wall math is the velocity law of the moving wall and math M math is the stochasticity parameter of the system. If the velocity law of the moving wall is differentiable enough, according to Kolmogorov Arnold Moser theorem KAM theorem invariant curves in the phase space math varphi,u math exist. These invariant curves act as barriers that do not allow for a particle to further accelerate and the average velocity of a population of particles saturates after finite iterations of the map. For instance ... Ulam problem the velocity and energy of the particle are bounded was given first by L. D. Pustyl nikov in ref L.D. Pustyl nikov, 1983 . On a problem of Ulam. Teoret. Mat.Fiz.57, 128 132. Engl. transl ... considers the Fermi Ulam model in the framework of the special theory of relativity, then under ... of the Fermi Ulam model. Theoret. Math. Phys. 77 1 , 1110 1115. ref . 2D Generalization Though the 1D ... and M. A. Lieberman Appl. Math. Sci. vol 38 New York Springer . DEFAULTSORT Fermi Ulam Model Category ... more details
In physics , the Fermi Pasta Ulam problem or FPU problem was the apparent paradox in chaos theory that many complicated enough physical systems exhibited almost exactly Frequency periodic behavior instead of ergodic theory ergodic behavior. One of the resolutions of the paradox includes the insight that many non linear equations are integrable systems exactly integrable . Another may be that ergodic behavior may depend on the initial energy of the system. The FPU experiment In the Summer of 1953 Enrico Fermi Fermi , John Pasta Pasta , Stanislaw Marcin UlamUlam and Mary Tsingou conducted numerical experiments i.e. computer simulations of a vibrating string that included a non linear term quadratic in one test, cubic in another, and a piecewise linear approximation to a cubic in a third . They found that the behavior of the system was quite different from what intuition would have led them to expect. Fermi thought that after many iterations, the system would exhibit thermalization , an ergodic behavior in which the influence of the initial modes of vibration fade and the system becomes more or less random with equipartition theorem all modes excited more or less equally . Instead, the system exhibited a very complicated quasi periodic behavior. They published their results in a Los ... Fermi, Pasta and Ulam FPU simulated the vibrating string by solving the following discrete system ... ergodicity. References E. Fermi, J. Pasta, and S. Ulam, http www.physics.utah.edu detar phycs6720 ... issues feature fermi pasta ulam and the birth of experimental mathematics Fermi, Pasta, Ulam and the Birth of Experimental Mathematics , American Scientist 97, 6 2009 , 214 221. External links scholarpedia title Fermi Pasta Ulam nonlinear lattice oscillations urlname Fermi Pasta Ulam ... Category Ergodic theory Category History of physics de Fermi Pasta Ulam Experiment fr Exp rience de Fermi Pasta Ulam ... more details
Ulam design a Nuclear weapon design Two stage thermonuclear weapons staged fusion bomb ... and origins of the Teller Ulam design , the technical concept behind modern thermonuclear weapons , also ... to construct. Ulam s and Teller s contributions Image with inadequate rationale removed Image Stanislaw Ulam.jpg right frame Stanislaw Ulam . The exact history of the Teller Ulam breakthrough ... from the Polish migr mathematician Stanis aw Marcin Ulam Stanis aw Ulam was seized upon by Teller ... of contribution provided respectively from Ulam and Teller to what became known as the Teller Ulam ... with Scientific American from 1999, Teller told the reporter blockquote I contributed Ulam did not. I m sorry I had to answer it in this abrupt way. Ulam was rightly dissatisfied with an old ... of Ulam. Image Castle Bravo Blast.jpg right thumb 250px The dry fuel device detonated in the Castle Bravo shot demonstrated that the Teller Ulam design could be made deployable, but also that final fission stage created large amounts of nuclear fallout . The Teller Ulam breakthrough the details ... before igniting it. Some sources have suggested that Ulam initially proposed compressing the secondary ... the primary and secondary seems to have been exclusively contributed by Ulam. The elegance of the design ... to a near certainty that the concept would work. On November 1, 1952, the Teller Ulam configuration ... bomb project, once drolly said, For the sake of history, I think it is more precise to say that Ulam ... use. The first deployable Teller Ulam weapon in the U.S. would not be developed until 1954, when ... hydrogen bombs, efforts in the United States shifted towards developing miniaturized Teller Ulam ... versions of the Teller Ulam design were created which could fit on the end of a small MIRV ed missile ... before the Teller Ulam configuration had been completed , none of his espionage information was of much ... Ulam configuration, but rather used alternating layers of fissile material ... more details
File Teller Ulam device 3D.svg right thumb 250px The basics of the Teller Ulam design. Radiation from ... secondary is heated from within by a second fission explosion. The Teller Ulam design is the nuclear ... Ulam design is colloquially referred to as the secret of the hydrogen bomb because it was the breakthrough ..., Hungarian American physicist Edward Teller and Polish American mathematician Stanis aw Ulam ... use the Teller Ulam design. Its essential features, which officially remained secret for nearly three ... fission itself, increasing the overall explosive yield. In many Teller Ulam weapons, fission of the pusher ... Teller Ulam devices. Claims that Israel, India, and Pakistan have developed two stage Teller Ulam ... knowledge about the Teller Ulam design has been mostly shaped from a few specific incidents outlined in a section below. Basic principle The basic principle of the Teller Ulam configuration is the idea ... to have been a three stage device. Image Teller Ulam device.png right thumb 350px One possible version of the Teller Ulam configuration. Surrounding the other components is a hohlraum or radiation ... the secondary is compressed The basic idea of the Teller Ulam configuration is that each stage would ... explosion. This was allegedly Ulam s first concept and was abandoned as unworkable. Blast wave from the primary explosion. This was allegedly Ulam s second concept and was abandoned as unworkable. Radiation ... reentry vehicle MIRVed version of the Teller Ulam configuration with a spheroid prolate Oval ... bombs have been made from configurations other than those based on the Teller Ulam design, the fact ..., the Teller Ulam configuration relies on at least two instances of implosion occurring first, the conventional ... practical targets. History Main History of the Teller Ulam design American developments The idea ... A photograph of Operation Castle thermonuclear test, Castle Romeo shot. Stanislaw Ulam , a coworker of Teller s, made the first key conceptual leaps towards a workable fusion design. Ulam s two innovations ... more details
Spiral staircase can refer to A type of stairway Spiral and helical stairs stairway characterized by its spiral shape. Spiral Starecase , a 1960s music group The Spiral Staircase , a 1946 film The Spiral Staircase 1975 film , a remake of the 1946 film The Spiral Staircase 2000 film , a remake of the 1946 film Spiral Stairs , nickname of Scott Kannberg Spiral Staircase , a song by the Kings of Leon on their album Youth and Young Manhood Spiral Staircase 15 , a DVD of band D espairsRay disambig ... more details
Spiral Scratch may refer to Spiral Scratch EP Spiral Scratch EP , a 1977 EP by Buzzcocks Spiral Scratch Doctor Who Spinal Scratch Doctor Who , a novel by Gary Russell disambig ... more details
A spiral minaret is a feature of the Great Mosque of Samarra the Mosque with the Spiral Minaret Burmal Mescit Camii , Istanbul disambiguation ... more details
Death spiral may refer to Spiral dive , a terminal situation in flying Death spiral figure skating , an element of pair skating Death spiral insurance , an insurance plan whose costs are rapidly increasing Death spiral financing Ant mill , a behavioral phenomenon in ants disambig ... more details
wiktionary spiral A spiral is a curve which emanates from a central point, getting progressively farther away as it revolves around the point. Spiral may also refer to TOCright Science and mathematics Spiral galaxy , a type of galaxy in astronomy Spiral dynamics , a theory of human development Spiral cleavage , a type of cleavage in embryonic development Transport Spiral railway , a technique employed by railways to ascend steep hills AT 6 Spiral , an anti tank missile Mikoyan Gurevich MiG 105 Mikoyan Gurevich MiG 105 Spiral , a Soviet spaceplane Spiral dive , a type of generally undesirable and accidental descent manoeuvre in an aircraft Film and television Spiral 1978 film Spiral 1978 film , a 1978 Polish film Spiral 2007 film Spiral 2007 film , a 2007 American film Spiral The Bonds of Reasoning , a Japanese anime series Uzumaki film , translated as spiral , a Japanese horror film based on the manga of the same name Spiral TV series Spiral TV series , a French thriller also broadcast on BBC Four in 2006 Spiral Buffy episode Spiral Buffy episode , an episode of the TV series Buffy the Vampire Slayer Glen Coroner , known as Spiral, a rapper and contestant in the UK Big Brother TV show Books and comics Spiral novel Spiral novel , a Japanese book in the Ring series Spiral comics , a Marvel Comics character Spiral The Bonds of Reasoning , a mystery anime and manga series Uzumaki , translated as Spiral, a horror manga Music Spiral album Spiral album , an album by Vangelis Spiral process composition Spiral process composition , a 1968 process music composition by Karlheinz Stockhausen Spirals album Spirals album , an album by Blood Has Been Shed Spiral song Spiral song , the Norwegian Eurovision Song Contest 1964 entry by Arne Joachim Bendiksen Spiral Pendulum song Spiral Pendulum song , a song by Australian drum and bass group Pendulum Spiral, track four from John Coltrane s Giant Steps Spiral , track five from William Orbit s Hello Waveforms The Spiral, the official fan ... more details
Spiral binding may refer to Spiral Binding Process also known as coil binding . Spiral Binding Company Inc Creators of Spiral Binding disambiguation Short pages monitor This long comment was added to the page to prevent it being listed on Special Shortpages. It and the accompanying monitoring template were generated via Template Longcomment. Please do not remove the monitor template without removing the comment as well. ... more details
Image Archimedean spiral.svg right thumb 300px Three 360 turnings of one arm of an Archimedean spiral The Archimedean spiral also known as the arithmetic spiral is a spiral named after the 3rd century ... a and b . Changing the parameter a will turn the spiral, while b controls the distance between successive turnings. Archimedes described such a spiral in his book On Spirals . Characteristics This Archimedean spiral is distinguished from the logarithmic spiral by the fact that successive turnings of the spiral have a constant separation distance equal to 2 Pi b if is measured in radian s , while in a logarithmic spiral these distances form a geometric progression . The Archimedean spiral ... of this arm across the y axis will yield the other arm. General Archimedean spiral Sometimes the term Archimedean spiral is used for the more general group of spirals math r a b theta 1 x . math The normal Archimedean spiral occurs when x 1. Other spirals falling into this group include the hyperbolic spiral , Fermat s spiral , and the lituus mathematics lituus . Virtually all static spirals appearing in nature are logarithmic spiral s, not Archimedean ones. Many dynamic spirals such as the Parker spiral of the solar wind , or the pattern made by a Catherine wheel firework Catherine ... spiral. Image Two moving spirals scroll pump.gif frame Mechanism of a scroll pump The Archimedean spiral has a variety of real world applications. Scroll compressor s, made from two interleaved ... url http www.freepatentsonline.com 5603614.html title Fluid compressing device having coaxial spiral ... 25 . See the passage on Variable Groove . ref Asking for a patient to draw an Archimedean spiral is a way ... through a spiral platter. ref Cite web url http www.pubmedcentral.nih.gov articlerender.fcgi?tool pubmed&pubmedid 4632851 title Spiral Plate Method for Bacterial Determination author J. E. Gilchrist, J. E. Campbell, C. B. Donnelly, J. T. Peeler, and J. M. Delaney ref See also Hyperbolic spiral Fermat ... more details
Diagram needed Archimedian, equiangular and conical spiral antennas In microwave systems, a spiral antenna is a type of RF Antenna radio antenna . It is shaped as a two arm spiral , or more arms may be used ... 032291 0, 1961, Chapter 14 2 ref Spiral antennas were first described in 1956. Spiral antennas belong ... s 103 112 ref Such antennas are inherently circularly polarized with low gain. Array of spiral antennas can be used to increase the gain. Spiral antennas are reduced size antennas with its windings ... back lobes because a unidirectional pattern is usually preferred in such antennas. Spiral antennas are classified into different types archimedean spiral, square spiral and star spiral etc. Archimedean spiral is the most popular configuration. Working These antennas operate in 3W way traveling wave, fast wave and leaky wave. The traveling wave, formed on spiral arms, allows for broadband performance, fast wave due to mutual coupling phenomenon occurring between arms of spiral and leaky wave leaks the energy during propagation through the spiral arms to produce radiation. Ring theory band theory explains the working principle of spiral antenna. The theory states that spiral antenna radiates from a region called active region where the circumference of spiral equals wavelength. ref A. Mehta, D. Mirshekar Syahkal and H. Nakano , Beam adaptive single arm rectangular spiral antenna with switches ... are to be considered while designing a square spiral antenna. The parameters include spacing ... from center of the spiral to center of the first turn while the outer radius is measured from center of the spiral to center of the outermost turn. Other than these design parameters, spiral ... to speed of light. In an r coordinate system, spiral grows along r axis and axis simultaneously. All ... factor. Different designs of spiral antenna can be obtained by varying number of turns it contains ... permittivity and dimensions over which the spiral is printed. Dielectric mediums like Rogers ... more details
Image Triple Spiral Symbol.svg right thumb 200px A modern form of the triple spiral symbol Image Newgrange Entrance Stone.jpg right thumb 200px Triple spiral visible on entrance stone at Newgrange Image Triskel type Amfreville.svg right thumb 200px Triskel modelled after those of the Amfreville Gaulish helmet The triple spiral or Triskelion triskele is a Celt ic and Early history of Ireland pre Celtic .... Believed by many to be an ancient symbol of pre Celtic and Celtic beliefs, the triple spiral appears ... s of Insular art . The triple spiral was possibly the precursor to the later triskele design found ... to represent a variety of triplicities from their belief systems. The triple spiral is one of the main ... spiral came into common use to refer to the three realms. Also p. 134 On CRs Using Celtic symbols such as triskele ... also use the triple spiral symbol, most often to represent the concept of the Triple Goddess Neopaganism triple goddess . According to Uriel s Machine by Knight and Lomas 2003 the triple spiral may ... helical shape, which can be likened to a spiral, so that three spirals could represent nine months, providing an explanation for a link between fertility and the triple spiral symbol. center gallery Image Triple Spiral Symbol filled.svg Version with three thick single spirals. Image Triskele Symbol spiral five thirds turns.svg Spiral triskelion , occasionally used as a Christian Trinity Trinitarian symbol. Image Triskelion spiral threespoked inspiral.svg One decorative version of a wheeled form of the triple spiral symbol, sometimes considered a solar symbol Image Triskele hollow triangle.svg A spiral triskelion with a hollow triangle at its center File Triple espiral de Santa Tegra.jpg Auspicious ... Commonscat Triple spiral Archimedean spiral Celtic art Passage tomb Three hares Triskelion References reflist External links http www.eschertile.com kids animate.htm Triple Spiral Animation by David Chow DEFAULTSORT Triple Spiral Category Celtic art Category Symbols Category Spirals Category Ornaments ... more details
Cleanup date September 2010 Merge Colon date September 2010 Refimprove date September 2010 The spiral colon is the ascending colon of ruminants. ref citation url http medical dictionary.thefreedictionary.com spiral colon title Medical dictionary ref .Caecum receives the solid wastes of digestion from the ileum via the Ileocaecal valve .The spiral colon is responsible for the reabsorption of water and minerals from faecal material ref citation url http faculty.ucc.edu biology potter Pig Digestive System sld009.htm title Spiral colon and caecum ref References Reflist 3.Veterinary Dictionary http www.answers.com topic colon 9 Category Mammal anatomy Category Colon anatomy ... more details
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