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.

Although the ornithopter continues to be of interest to hobbyists, it was replaced by the glider in the 19th century.

Although this distinction was blurred by the 19th century arrival of the railway.

Although bluetongue disease was already recognized in South Africa in the early 19th century, a comprehensive description of the disease was not published until the first decade of the 20th century.

Although central banks today are generally associated with fiat money, the 19th and early 20th centuries central banks in most of Europe and Japan developed under the international gold standard, elsewhere free banking or currency boards were more usual at this time.

Although classical liberals aspired to a minimum of state activity, they accepted the principle of government intervention in the economy from the early 19th century with passage of the Factory Acts.

Although machines capable of performing all four arithmetic functions existed prior to the 19th century, the refinement of manufacturing and fabrication processes during the eve of the industrial revolution made large scale production of more compact and modern units possible.

Although most of the relevant tissues and endocrine glands had been identified by early anatomists, a more humoral approach to understanding biological function and disease was favoured by the ancient Greek and Roman thinkers such as Aristotle, Hippocrates, Lucretius, Celsus, and Galen, according to Freeman et al., and these theories held sway until the advent of germ theory, physiology, and organ basis of pathology in the 19th century.

Although not as popular, the title 王 wang ( king or prince ) was still used by many monarchs and dynasties in China up to the Taipings in the 19th century.

Although they were initially regarded as mere curiosities, by the 18th and 19th centuries kites were being used as vehicles for scientific research.

Although not widely fielded until World War I, early machine guns were being used by militaries in the second half of the 19th century.

Although the HBC maintained a monopoly on the fur trade during the early mid 19th century there was competition from James Sinclair and Andrew McDermot ( Dermott ), independent traders in the Red River Colony.

Although the use of water power gave way to steam power in many of the larger mills and factories, it was still used during the 18th and 19th centuries for many smaller operations, such as driving the bellows in small blast furnaces ( e. g. the Dyfi Furnace ) and gristmills, such as those built at Saint Anthony Falls, which uses the 50-foot ( 15 m ) drop in the Mississippi River.

Although many of the legal principles governing intellectual property rights have evolved over centuries, it was not until the 19th century that the term intellectual property began to be used, and not until the late 20th century that it became commonplace in the majority of the world.

Although the milling machine was invented at this time, it was not developed as a serious workshop tool until somewhat later in the 19th century.

Although his poems were not generally well received by critics during his life, his reputation grew after his death, so that by the end of the 19th century he had become one of the most beloved of all English poets.

Although many tartans are added every year, most of the registered patterns available today were created in the 19th century onward by commercial weavers who worked with a large variety of colours.

Although the existence of molecules has been accepted by many chemists since the early 19th century as a result of Dalton's laws of Definite and Multiple Proportions ( 1803 – 1808 ) and Avogadro's law ( 1811 ), there was some resistance among positivists and physicists such as Mach, Boltzmann, Maxwell, and Gibbs, who saw molecules merely as convenient mathematical constructs.

Although they bore the name of a 19th century German political entity, they were not " Germans.

Although music has been a part of dramatic presentations since ancient times, modern Western musical theatre emerged during the 19th century, culminating with the works of Gilbert and Sullivan in Britain and those of Harrigan and Hart in America.

Although his reputation was unsettled during the following centuries and his descendants were not notable, he gained standing during the 19th and 20th centuries.

Although early examples of organic reactions and applications were often serendipitous, the latter half of the 19th century witnessed highly systematic studies of organic compounds.

Although Haeckel's specific form of recapitulation theory is now discredited among biologists, it had a strong influence on social and educational theories of the late 19th century.

Although such defects were clear as early as 1849, nothing was done for the remainder of the 19th century.

Although it was codified in the 19th century, when all the social sciences were established, political science has ancient roots ; indeed, it originated almost 2, 500 years ago with the works of Plato and Aristotle.

Although the new licensing laws prevented new beer houses from being created, those already in existence were allowed to continue and many did not close until nearly the end of the 19th century.