Although neither of the girls claimed to see any fairies, and there were no more photographs, " on the contrary, he saw them everywhere " and wrote voluminous notes on his observations.

Although modern quantum optics tells us that there also is a semi-classical explanation of the photoelectric effect — the emission of electrons from metallic surfaces subjected to electromagnetic radiation — the photon was historically ( although not strictly necessarily ) used to explain certain observations.

Although they were cautious about claiming a planetary detection, their radial-velocity observations suggested that a planet orbits the star Gamma Cephei.

Although that instrument still survives in working order, it is no longer in use and now the meridian of origin of the world's longitude and time is not strictly defined in material form but from a statistical solution resulting from observations of all time-determination stations which the BIPM takes into account when co-ordinating the world's time signals.

Although no confirmed direct observations of the Oort cloud have been made, astronomers believe that it is the source of all long-period and Halley-type comets entering the inner Solar System and many of the centaurs and Jupiter-family comets as well.

Although the idea that the planets orbited the Sun had been suggested many times, it was not until the 17th century that this view was supported by evidence from the first telescopic astronomical observations, performed by Galileo Galilei.

Although observing redshifts and blueshifts have several terrestrial applications ( e. g., Doppler radar and radar guns ), redshifts are most famously seen in the spectroscopic observations of astronomical objects.

Although many scientists, including Einstein, had speculated that Λ was zero, recent astronomical observations of type Ia supernovae have detected a large amount of " dark energy " that is accelerating the universe's expansion.

Although this conclusion of the paradox seems counter-intuitive, some approaches accept that observations of ( coloured ) non-ravens can in fact constitute valid evidence in support for hypotheses about ( the universal blackness of ) ravens.

Although the Macartney Embassy returned to London without obtaining any concession from China, the mission could have been termed a success because it brought back detailed observations.

Although it draws heavily on symbiosis ideas first put forward by mid-19th century scientists and by Merezhkovsky ( 1905 ) and Ivan Wallin ( 1920 ) in the early-20th century, Margulis's endosymbiotic theory formulation is the first to rely on direct microbiological observations ( as opposed to paleontological or zoological observations which were previously the norm for new works in evolutionary biology ).

Although never successful in creating a " flying machine ", Leonardo da Vinci ( 1452 – 1519 ) was a keen observer of the anatomy and flight of birds, and made numerous notes and sketches on his observations as well as sketches of various " flying machines ".

Although genus types with vertical extent are often considered a single family, the International Civil Aviation Organization ( ICAO ) further distinguishes towering vertical clouds as a separate group by specifying that these very large cumuliform and cumulonimbiform types must be identified by their standard names or abbreviations in all aviation observations ( METARS ) and forecasts ( TAFS ) to warn pilots of possible severe weather and turbulance.

Although epigenetics in multicellular organisms is generally thought to be a mechanism involved in differentiation, with epigenetic patterns " reset " when organisms reproduce, there have been some observations of transgenerational epigenetic inheritance ( e. g., the phenomenon of paramutation observed in maize ).

Although the vitamin A was not identified until the 20th century, written observations of conditions created by deficiency of this nutrient appeared much earlier in history.

Although these works contain many absurd and fabulous statements, as a whole they have many valuable observations concerning the functions and properties of plants.

Although there are no longer official temperature observations in Crystal Falls, Michigan State University concluded that temperatures are similar to those at the National Weather Service office in Marquette, Michigan.

Although history credits this discovery to Broca, another French neurologist, Marc Dax, made similar observations a generation earlier, but he died shortly after with no chance to further his evidence.

Although he viewed his work as confirming and extending the discoveries of earlier " magnetic collectors ," he stressed the need for the multiplication and repetition of observations.

Although the four 8. 2-metre Unit Telescopes can be combined in the VLTI, they are mostly used for individual observations and are only available for interferometric observations for a limited number of nights every year.

Although the flybys are primarily orbital maneuvers, each provided an opportunity for significant scientific observations.

Although the idea concerning the activity of galactic nuclei for the first time was accepted very skeptically, after many years, as a result of the pressure of observations ( the discovery of quasars, radio outbursts of galaxies, consequences of explosions in nuclei, ejection from nuclei, etc.

Although New Orleans was not to learn of it for a spell, she also was a sadist, a nymphomaniac and unobtrusively mad -- the perpetrator of some of the worst crimes against humanity ever committed on American soil.

Although this kind of wholesale objection came at first from some men who were not technically Puritans, still, once the Puritans gained power, they climaxed the affair by passing the infamous ordinance of 1642 which decreed that all `` public stage-plays shall cease and be forborne ''.

Although I suggested that you hold the bar at the back of the neck there's no reason why you shouldn't make some experiments with the bar held in front of the neck.

-- 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 biopsies have shown structural changes in some of the reported cases of steroid-induced weakness, this case provides the only example known to us in which necropsy afforded the opportunity for extensive study of multiple muscle groups.

Although it is in some ways comparable to a voluntary sale of assets for cash, to which section 203 quite clearly applies, the courts and Treasury have held that acquiring corporations in several types of non-taxable reorganizations may sue for refund of taxes paid by transferors.

Although he incited a few friendly Indians to pillage the invaders, and even kill some of them, the Carolina advance continued.

Although it looked like a routine technical snapback to Wall Streeters it was accompanied by some good news.

Although a complete picture cannot be given, we can indicate some aspects of life into which the Christian faith entered as at least one creative factor.

Although most species are associated with water and damp habitats, some are specialised to live in trees and in deserts.

Although some speculate that it is related to Latin algēre, " be cold ", there is no known reason to associate seaweed with temperature.

The Turkish language and the Islamic religion were gradually introduced as a result of the Seljuk conquest, and this period marks the start of Anatolia's slow transition from predominantly Christian and Indo-European and Semitic-speaking, to predominantly Muslim and Turkish-speaking ( Although some ethnic groups such as Armenians, Greeks, Assyrians and Georgians retained Christianity and their native languages ).

Although argon is a noble gas, it has been found to have the capability of forming some compounds.

Although MacDougall's results varied considerably from " 21 grams ", for some people this figure has become synonymous with the measure of a soul's mass.

Although much of Inge's principles, above, still apply to the New Agrarianism, the affiliation with a particular religion and patriarchal tendency have subsided to some degree.

Although he had some trouble with the peasantry, the lands and treasures of the church enabled him to propitiate the nobles and for a time to provide for the expenses of the court.

Although some of his lands were restored to the control of his relatives, his safe return could not be arranged, and Hasan Ali Shah was forced to remain a permanent resident of India.

Although some sources state that Ealdred attended the coronation of Emperor Henry IV, this is not possible, as on the date that Henry was crowned, Ealdred was in England consecrating an abbot.

Although there are some teachers who will encourage the improvisation as technique in order to free the actor of limitations in rehearsal.

Although Acorn were able to shrink substantially the same functionality as the BBC into just one chip, manufacturing problems meant that very few machines were available for the Christmas period — to the extent that some shops reported eight presales for every delivered machine.

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 works of precious gems and metals usually do not survive the ravages of time, some fine pieces of Assyrian jewelry were found in royal tombs at Nimrud.

Although Roma were unable to break into the top four during the following decade, they did achieve some measure of cup success.

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 they are generally classified as a cappella metal, the band also includes a drummer, and use amplifiers on some songs to distort the voice to sound more like a real guitar.