-- Although there was some variation in results which must be attributed either to trace impurities or to variation in wall effects, the photochemical exchange in the gas phase was sufficiently reproducible so that it seemed meaningful to compare the reaction rates in different series of reaction tubes for the purpose of obtaining information on the effect of chlorine concentration and of carbon tetrachloride concentration on the reaction rate.

Although it is the third element in the transuranic series, it was discovered fourth, after the heavier curium.

Although Buzzcut's first name was never given in the series, it was revealed in This Book Sucks.

Although each series is set in a different era, all follow the " misfortunes " of Edmund Blackadder ( played by Atkinson ), who in each is a member of a British family dynasty present at many significant periods and places in British history.

Although he initially declined the part of Dr. David Banner in The Incredible Hulk because of its comic book origins, on reading Kenneth Johnson's script for the pilot episode, he was persuaded to change his mind ( and agreed to remain involved with the series for as long as Johnson was to be involved ).

Although most users did not purchase the registered version, over one million copies have been sold, and the popularity helped the sales of later games in the Doom series that were not released as shareware.

Although the majority of WADs contain one or several custom levels mostly in the style of the original game, others implement new monsters and other resources, and heavily alter the gameplay ; several popular movies, television series, other video games and other brands from popular culture have been turned into Doom WADs by fans ( without authorization ), including Aliens, Star Wars, The X-Files, The Simpsons, South Park, Sailor Moon, Dragon Ball Z, Red Faction, The Thing, Pokémon and Batman.

Although individual projects typically last three to five years, major technological challenges may be addressed over longer time periods, ensuring patient investment on a series of focused steps and keeping teams together for ongoing collaboration.

Although not exclusively about hypertext, the World Wide Web series of conferences, organized by IW3C2, include many papers of interest.

Although Infocom started out with Zork, and although the Zork world was the centerpiece of their product line throughout the Zork and Enchanter series, the company quickly branched out into a wide variety of story lines: fantasy, science-fiction, mystery, horror, historical adventure, children's stories, and others that defied categories.

Although today Sophus Lie is rightfully recognized as the creator of the theory of continuous groups, a major stride in the development of their structure theory, which was to have a profound influence on subsequent development of mathematics, was made by Wilhelm Killing, who in 1888 published the first paper in a series entitled

Although the first books contained a fair amount of violence, it decreased with the series ; in The Emerald City of Oz, Ozma objected to doing violence even to the Nomes who threaten Oz with invasion.

Although most of the gameplay reflects a distinctly fantasy genre, the overarching plot of the series has something of a science fiction background.

Although the Vikings have dominated the overall series, the Saints have won the last three including the 2009 NFC Championship Game.

Although none of the major opera houses "... use traditional, Broadway-style sound reinforcement, in which most if not all singers are equipped with radio microphones mixed to a series of unsightly loudspeakers scattered throughout the theatre ", many use a sound reinforcement system for acoustic enhancement, and for subtle boosting of offstage voices, child singers, onstage dialogue, and sound effects ( e. g., church bells in Tosca or thunder effects in Wagnerian operas ).

Although Falk appeared in numerous other television roles in the 1960s and 1970s, he is best known as the star of the TV series Columbo, " everyone's favorite rumpled television detective ", writes historian David Fantle.

Although the series was originally titled Hero's Quest, Sierra failed to trademark the name.

Although these agreements changed during the 1980s and beyond, it is still expensive to repeat archive television series on British terrestrial television, as new contracts have to be drawn up and payments made to the artists concerned.

Although this television series had the title of Star Trek, it later acquired the retronym of Star Trek: The Original Series ( Star Trek: TOS or TOS ) to distinguish the show within the media franchise that it began.

Although the character of Torres was twenty-five years old when the series began, Dawson was actually thirty-six.

Although television science fiction has always frequently addressed moral and social themes, recent series have done so with less subtlety and with more blatantly political themes.

Although the series continued to receive low ratings and was canceled a year later, the enduring popularity of the series resulted in Paramount creating a set of movies, and then a new series Star Trek: The Next Generation, which by the early 1990s had become one of the most popular dramas on American television.

Although " android " is used almost universally to refer to both sexes, and those of no particular sex, " android " technically refers to the male form, while " gynoid " is the feminine form.

Although digital setting circles can be used to display a telescope's RA and Dec coordinates, they are not simply a digital read-out of what can be seen on the telescope's analog setting circles.

Although the name actually applies to a group of snakes, it is often used to refer only to one species in particular, the common or green anaconda, Eunectes murinus, which is one of the largest snakes in the world.

Although originally controversial, the axiom of choice is now used without reservation by most mathematicians, and it is included in ZFC, the standard form of axiomatic set theory.

Although the axiom of countable choice in particular is commonly used in constructive mathematics, its use has also been questioned.

Although an explanation for the phenomenon was not provided until 1919, duralumin was one of the first " age hardening " alloys to be used, and was soon followed by many others.

Although hydrogen-like orbitals are still used as pedagogical tools, the advent of computers has made STOs preferable for atoms and diatomic molecules since combinations of STOs can replace the nodes in hydrogen-like atomic orbital.

Although Collins used it as a catharsis for her opposition to the Vietnam War, two years after her rendition, the Royal Scots Dragoon Guards, senior Scottish regiment of the British Army, recorded an instrumental version featuring a bagpipe soloist accompanied by a pipe and drum band.

Although Dio is the earliest writer to mention them, Ammianus Marcellinus used the name to refer to Germans on the Limes Germanicus in the time of Trajan's governorship of the province shortly after it was formed, circa 98 / 99.

Although the 1987 decision settled the question of the scientific name of the genus, the common name " amaryllis " continues to be used differently.

Although the term aeon may be used in reference to a period of a billion years ( especially in geology, cosmology or astronomy ), its more common usage is for any long, indefinite, period.

Although most dialects of English used in the former British Empire outside of North America and Australasia are, to various extents, based on British English, most of the countries concerned have developed their own unique dialects, particularly with respect to pronunciation, idioms and vocabulary.

Although used for similar purposes, transparent colors and image masks do not permit the smooth blending of the superimposed image pixels with those of the background ( only whole image pixels or whole background pixels allowed ).

Although cheap and effective in enabling use of some software that only used official ROM entry points for text output, this solution proved very slow because the Electron had to be placed into an 80-byte-pitch display to be able to get anywhere near to reproducing mode 7 and the CPU spent a lot of time drawing approximations of mode 7 characters and graphics that in a hardware solution would be achieved without any CPU processing.

Although this produced a mode 7 that barely impacted upon CPU performance and gave the same visual quality as the BBC Micro, it remained compatible only with software that used the ROM routines for outputting text and graphics and still used 10 kB of memory for the display.

Although used during the Normandy landings, by that point German aircraft were contained by the Allies own air forces and they were largely unneeded.

Although modern analytical chemistry is dominated by sophisticated instrumentation, the roots of analytical chemistry and some of the principles used in modern instruments are from traditional techniques many of which are still used today.

Although he used the usual French terms " avant J .- C ." ( before Jesus Christ ) and " après J .- C ." ( after Jesus Christ ) to label years elsewhere in his book, the Byzantine historian Venance Grumel used negative years ( identified by a minus sign, −) to label BC years and unsigned positive years to label AD years in a table, possibly to save space, without a year 0 between them.

Although a wide variety of graphite tube designs have been used over the years, the dimensions nowadays are typically 20 – 25 mm in length and 5 – 6 mm inner diameter.

Although these instruments have slow response time and low accuracy, they were sometimes used in measuring radio-frequency current.

Although his paper was widely cited, a random selection of 60 of these citations revealed that 29 of the papers were direct rebuttals or criticisms of Jensen's arguments, 8 cited the paper as an " example of controversy ," 8 used it as a background reference.

Although this document was subsequently adopted by International Organization for Standardization ( ISO ) and subsequent revisions published by ISO have been adopted by ANSI, the name ANSI C ( rather than ISO C ) is still more widely used.