Although the permanency of acrylics is sometimes debated by conservators, they appear more stable than oil paints.

Although in 1899 Standard Oil controlled more than 85 % of the oil production in the older oil regions in the Appalachian Basin and the Lima-Indiana trend, it never controlled more than 10 % of the oil production in the new Gulf Coast province.

Although oil drastically improved Libya's finances, popular resentment grew as wealth was increasingly concentrated in the hands of the elite.

Although it replaced whale oil, the 1873 edition of Elements of Chemistry said, " The vapor of this substance mixed with air is as explosive as gunpowder.

Although generally lubricants are based on one type of base oil, mixtures of the base oils also are used to meet performance requirements.

Although all the other lights were extinguished, that light burned oil, in spite of the fact that it had been kindled first.

Although much has been made of its status as a major exporter of oil, Nigeria produces only about 2. 7 % of the world's supply.

Although oil paint was first used for the Buddhist Paintings by Indian and Chinese painters in western Afghanistan sometime between the fifth and ninth centuries, it did not gain popularity until the 15th century.

Although French geologists already in 1926 established for certain the presence of oil and gas in the country only then France started exploiting these reserves.

Although the use of global sources in the supply chain of organizations can be traced back several decades ( e. g., in the oil industry ), it was not until the late 1980s that a considerable number of organizations started to integrate global sources into their core business.

Although the country is rich in natural resources, the economy is mainly bolstered by agriculture, food processing, lumber, oil, cement, chemicals, mining, basic metals, hydropower, tourism, textile industry, migrant remittances, and the informal economy.

Although it is generally believed acceptable, several painting texts such as The Painter's Handbook state that it is unwise to paint in oils over acrylic gesso because, unlike with time-tested alternatives such as rabbit skin glue, oil paint eventually delaminates from the acrylic gesso surface.

Although he invested in the stock market, to the point where there was a ticker tape machine in the livingroom, he played the market primarily to lose, or else invested in odd schemes that inadvertently paid off big ( swamp land found to have oil under it, etc .).

Although he is best known for his oil paintings, Hopper initially achieved recognition for his watercolours and he also produced some commercially successful etchings.

Although some industries are global competitors, such as several iron and steel works, chemical plants and oil corporations that are large industrial enterprises employing thousands of people, most industrial and commercial enterprises in Austria are relatively small on an international scale.

Although renowned for his oil paintings, Turner is also one of the greatest masters of British watercolour landscape painting.

Although wild rapeseed oil contains significant amounts of erucic acid, a known toxin, the cultivar used to produce commercial, food-grade canola oil was bred to contain less than 2 % erucic acid, levels that are not believed to cause harm in humans and no health effects have been associated with consumption by humans of the genetically modified oil.

Although rumors that canola oil can cause dangerous health problems circulated, there is no reason to believe canola oil poses unusual health risks and its consumption in food-grade forms is generally recognized as safe by the United States Food and Drug Administration.

Although first published in the Des Moines Register in 1932, Hamlin himself allegedly claimed to have originated the idea while he watched dinosaur bones being dug up by oil equipment.

Although Brewster's own discoveries were important, they were not his only service to science.

Although the results were not conclusive, and Hershey and Chase were cautious in their interpretation, previous, contemporaneous and subsequent discoveries all served to prove that DNA is the hereditary material.

Although other volunteering projects such as Zooniverse credit users for discoveries, there is currently no crediting or early notification by SETI @ Home following the discovery of a signal.

Although whales and dolphins ( Cetacea ) do not possess most of the typical morphological characteristics of ungulates, recent discoveries indicate that they are descended from early artiodactyls, and thus are directly related to other even-toed ungulates such as cattle, with hippopotamuses being their closest living relatives.

Although the early centuries ( first half of the third millennium and earlier ) are still poorly understood, the archaeological discoveries have shown unequivocally that Ur was a major urban center on the Mesopotamian plain.

Although several revised versions based on new discoveries have been published, the epic remains incomplete.

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.

There is a body of evidence that suggests that the existence of the archipelago was known by early travellers ; they were first indicated on a Venetian chart attributed to the brothers Domenico and Francesco Pizzigano dating from 1367. Although the Canary Islands had been inhabited by a primitive population ( the Guanches ), human beings had never been known to set foot in the Madeira archipelago or the Savage Islands before the Portuguese discoveries and expansion.

Although there has been a great deal of debate as to who deserves the most credit for the discovery of general anaesthesia, it is generally agreed that certain scientific discoveries in the late 18th and early 19th centuries were critical to the eventual introduction and development of modern anaesthetic techniques.

Although he is best known for algorithmic probability and his general theory of inductive inference, he made many other important discoveries throughout his life, most of them directed toward his goal in artificial intelligence: to develop a machine that could solve hard problems using probabilistic methods.

Although the importance of these discoveries slowly gained acceptance during the early twentieth century, the intricate relationships between phagocytes and all the other components of the immune system were not known until the 1980s.

Although his discoveries lent support to the fact that Baja California was a peninsula, his reports were used to create maps depicting California as an island.

Although Henslow derived no benefit, these discoveries led to the establishment of the phosphate industry in Suffolk and Cambridgeshire ; and the works proved lucrative until the introduction of foreign phosphates.

Although the numbers initially designated the moons in orbital sequence, new discoveries soon failed to conform with this scheme ( e. g. " Jupiter V " is Amalthea, which orbits closer to Jupiter than does Io ).

Although Monticelli experimented briefly around 1870 with a treatment of light reflecting the discoveries of the Impressionists, he found the objectivity of this approach uncongenial.

Although no human remains could ever be found dating from that era, the discoveries of prehistoric tools supplied scientists with much information about human civilization stages in the Levant

Although he was the main researcher and the first author of the historical Nature article describing the pion, Cecil Powell alone was awarded the Nobel Prize for Physics in 1950 for " his development of the photographic method of studying nuclear processes and his discoveries regarding mesons made with this method ".

Although much undiscovered land would have been traversed, no journal was kept so no discoveries were attributed to the men.

Although Darwin changed his field of interest several times in these formative years, many of his later discoveries and beliefs were foreshadowed by the influences he had as a youth.

Although the first gold discovery was made in 1859 at Horsefly River, followed by more strikes at Keithley Creek and Antler Horns lake in 1860, the actual rush did not begin until 1861, when these discoveries were widely publicized.

Although Ansai claimed he was trying to discover Confucian values within Shinto, his discoveries had a profound effect on his personal philosophy.

Although its deposits were minimal, Dogtown did attract attention to the area as a whole, including the subsequent discoveries of much richer gold deposits in nearby areas such as Bodie, Aurora and Masonic.