In the first case the fixed elements within each pencil are the multiple secant and the line joining the vertex, P, to the intersection of **zg and the plane of the pencil which does not lie on the multiple secant.

Continuing with the case in which **zg is a Af curve on a quadric Q, we first observe that the second regulus of Q consists precisely of the lines which join the two free intersections of **zg and the planes through any one of the multiple secants.

Andrea Andreani ( 1540 – 1623 ) was an Italian engraver on wood, who was among the first printmakers in Italy to use chiaroscuro, which required multiple colours.

Cruder forms of accounting were inadequate for the problems created by a business entity involving multiple investors, so double-entry bookkeeping first emerged in northern Italy in the 14th century, where trading ventures began to require more capital than a single individual was able to invest.

The weapons system based on Phoenix was the world's first to allow simultaneous guidance of missiles against multiple targets.

The AIM-54 / AWG-9 combination was the first to have multiple track capability ( up to 24 targets ) and launch ( up to 6 Phoenixes can be launched nearly simultaneously ); the large missile is equipped with a conventional warhead.

Jimmie Foxx was the first player to win multiple times ; 9 players have won three times, and 19 have won twice.

The first, termed Proto-Isaiah ( chapters 1 – 39 ), contains the words of the 8th-century BCE prophet with 7th-century BCE expansions ; the second, Deutero-Isaiah ( chapters 40 – 55 ), is the work of a 6th-century BCE author writing near the end of the Babylonian captivity ; and the third, the poetic Trito-Isaiah ( chapters 56 – 66 ), was composed in Jerusalem shortly after the return from exile, probably by multiple authors.

In their heyday of the first half of the 17th century, they were printed in black-letter or gothic type and included multiple, eye-catching illustrations, a popular tune tile, as well as an alluring poem.

" But Blackwood will not help if, due to the structure of the hands, there are multiple ways to lose the first two tricks.

In addition to its lasting effects on other genres, it marked the first modern large-scale mixing of musical traditions from multiple ethnic and religious communities within the Celtic diaspora.

In a final, production quality rendering of a ray traced work, multiple rays are generally shot for each pixel, and traced not just to the first object of intersection, but rather, through a number of sequential ' bounces ', using the known laws of optics such as " angle of incidence equals angle of reflection " and more advanced laws that deal with refraction and surface roughness.

In 1963, Sandy Koufax became the first pitcher to win the award in a unanimous vote ; two years later he became the first multiple winner.

The discovery image gave the first hint that comet Shoemaker – Levy 9 was an unusual comet, as it appeared to show multiple nuclei in an elongated region about 50 arcseconds long and 10 arcseconds wide.

All three went through multiple editions during his lifetime, although many of his friends ( such as Darwin ) thought the first edition of the Principles was the best written.

In 1999, Upsilon Andromedae became the first main-sequence star known to have multiple planets.

United Methodists in the United States are encouraged to celebrate the Eucharist every Sunday, though it is typically celebrated on the first Sunday of each month, while a few go as long as celebrating quarterly ( a tradition dating back to the days of circuit riders that served multiple churches ).

On 12 July 1970, when Wood added multiple cellos to a Lynne-penned song intended to be a Move B-side, the new concept became a reality and " 10538 Overture " became the first Electric Light Orchestra song.

Georges Méliès first used superimposition on a dark background in la Caverne maudite ( The Cave of the Demons ) made a couple of months later in 1898, and then elaborated it further with multiple superimpositions in the one shot in l ' Homme de têtes ( The Troublesome Heads ).

In a multiple member first-past-the-post ballot, the first candidates in order of highest vote to cross the " line " ( that is, those who have the successivley greater number of votes ) are elected.

The central character in Ringworld, celebrating his birthday, teleports across time-zones to " lengthen " his birthday multiple times ( particularly notable since the first edition had the error of the character heading the wrong direction, increasing that edition's value ).

The first weapon generally considered in this category is the Gatling gun, originally a carriage-mounted, crank-operated firearm with multiple rotating barrels that was fielded in the American Civil War.

These jacks were known to stop even heavy arrows and their design of multiple layers bears a striking resemblance to modern day body armor, which substituted at first silk, ballistic nylon and later Kevlar as fabric.

In a two-story house, one unit may be installed in the basement to serve the first floor, another in the attic to cool the second.

The Analytical Engine incorporated an arithmetic logic unit, control flow in the form of conditional branching and loops, and integrated memory, making it the first design for a general-purpose computer that could be described in modern terms as Turing-complete.

Its first Allied-appointed mayor, Franz Oppenhoff, was murdered by an SS commando unit.

The first model looked like the later IBM PC ( which came on the market years later ), a rectangular base unit with two floppy drives on the front, and a monitor on top with a separate detachable keyboard.

A U. S. Marine Corps F / A-18 Hornet squadron will be the first forward-deployed unit with the AGM-88E.

Other bilinear transforms can be used to warp the frequency response of any discrete-time linear system ( for example to approximate the non-linear frequency resolution of the human auditory system ) and are implementable in the discrete domain by replacing a system's unit delays with first order all-pass filters.

Since the introduction of the first commercially available microprocessor ( the Intel 4004 ) in 1970, and the first widely used microprocessor ( the Intel 8080 ) in 1974, this class of CPUs has almost completely overtaken all other central processing unit implementation methods.

The 1st Sisak Partisan Detachment, often hailed as the first armed anti-fascist resistance unit in occupied Europe, was formed in Croatia, in the Brezovica forest near the town of Sisak.

The main difference between cluster sampling and stratified sampling is that in cluster sampling the cluster is treated as the sampling unit so analysis is done on a population of clusters ( at least in the first stage ).

It was first defined by Nicolas Clément in 1824 as a unit of heat, entering French and English dictionaries between 1841 and 1867.

Social conservatives ( in the first meaning of the word ) in many countries generally favor the pro-life position in the abortion controversy and oppose human embryonic stem cell research ( particularly if publicly funded ); oppose both eugenics and human enhancement ( transhumanism ) while supporting bioconservatism ; support a traditional definition of marriage as being one man and one woman ; view the nuclear family model as society's foundational unit ; oppose expansion of civil marriage and child adoption rights to couples in same-sex relationships ; promote public morality and traditional family values ; oppose atheism, especially militant atheism, secularism and the separation of church and state ; support the prohibition of drugs, prostitution, and euthanasia ; and support the censorship of pornography and what they consider to be obscenity or indecency.

Upon returning to South Africa in 1958, Barnard was appointed cardiothoracic surgeon at the Groote Schuur Hospital, establishing the hospital's first heart unit.

Mixed units, for example feet and inches, or pounds and ounces, are normally written with the largest unit first, in decreasing order.

The Arithmometer, invented in 1820 as a four-operation mechanical calculator, was released to production in 1851 as an adding machine and became the first commercially successful unit ; forty years later, by 1890, about 2, 500 arithmometers had been sold plus a few hundreds more from two arithmometer clone makers ( Burkhardt, Germany, 1878 and Layton, UK, 1883 ) and Felt and Tarrant, the only other competitor in true commercial production, had sold 100 comptometers.

The Tarantula research project, which most likely would have been called EV9, would have been the first Alpha processor to feature a vector unit.

All these proteins share a catalytic mechanism of di-metal-ion-mediated nucleotide transfer, whereby two acidic residues located at the end of the first strand and between the second and third strands of the RRM-like unit respectively, chelate two divalent cations.

The Doctor V64 unit was the first commercially available backup device for the Nintendo 64 unit.

The use of money as a medium of exchange and unit of account is necessary to solve the first two problems of economic calculation.

Such a self-contained spacewalk was first attempted by Eugene Cernan in 1966 on Gemini 9A, but Cernan could not reach the maneuvering unit without tiring.

The unit was redefined in terms of the tropical year at 1900. 0 instead of the sidereal year ; and the standard second was defined first as 1 / 31556925. 975 of the tropical year at 1900. 0, and then as the slightly modified fraction 1 / 31556925. 9747 instead, finally being redefined in 1967 / 8 in terms of the cesium atomic clock standard ( see below ).

The first victory for the Eindecker came on 1 July 1915, when Leutnant Kurt Wintgens, flying with the Feldflieger Abteilung 6 unit on the Western Front, forced down a Morane-Saulnier Type L two-seat " parasol " monoplane just east of Luneville.

* 1971 – The first unit of the Pickering Nuclear Generating Station, the first commercial nuclear power station in Canada, goes online.