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Gas lighting is the production of artificial light from combustion of a gaseous fuel, such as hydrogen, methane, carbon monoxide,
propane Propane () is a three-carbon alkane with the molecular formula . It is a gas at standard temperature and pressure, but compressible to a transportable liquid. A by-product of natural gas processing and petroleum refining, it is commonly used a ...
,
butane Butane () or ''n''-butane is an alkane with the formula C4H10. Butane is a gas at room temperature and atmospheric pressure. Butane is a highly flammable, colorless, easily liquefied gas that quickly vaporizes at room temperature. The name but ...
,
acetylene Acetylene (systematic name: ethyne) is the chemical compound with the formula and structure . It is a hydrocarbon and the simplest alkyne. This colorless gas is widely used as a fuel and a chemical building block. It is unstable in its pure ...
,
ethylene Ethylene (IUPAC name: ethene) is a hydrocarbon which has the formula or . It is a colourless, flammable gas with a faint "sweet and musky" odour when pure. It is the simplest alkene (a hydrocarbon with carbon-carbon double bonds). Ethylene i ...
,
coal gas Coal gas is a flammable gaseous fuel made from coal and supplied to the user via a piped distribution system. It is produced when coal is heated strongly in the absence of air. Town gas is a more general term referring to manufactured gaseous ...
(town gas) or natural gas. The light is produced either directly by the flame, generally by using special mixes (typically propane or butane) of illuminating gas to increase brightness, or indirectly with other components such as the gas mantle or the
limelight Limelight (also known as Drummond light or calcium light)James R. Smith (2004). ''San Francisco's Lost Landmarks'', Quill Driver Books. is a type of stage lighting once used in theatres and music halls. An intense illumination is created when ...
, with the gas primarily functioning as a heat source for the
incandescence Incandescence is the emission of electromagnetic radiation (including visible light) from a hot body as a result of its high temperature. The term derives from the Latin verb ''incandescere,'' to glow white. A common use of incandescence is ...
of the gas mantle or lime. Before electricity became sufficiently widespread and economical to allow for general public use, gas was the most prevalent method of outdoor and indoor lighting in cities and suburbs, areas where the infrastructure for distribution of the gaseous fuel was practical. When gas lighting was prevalent, the most common fuels for gas lighting were wood gas, coal gas and, in limited cases, water gas. Early gas lights were ignited manually by lamplighters, although many later designs are self-igniting. Gas lighting now is frequently used for camping, for which the high
energy density In physics, energy density is the amount of energy stored in a given system or region of space per unit volume. It is sometimes confused with energy per unit mass which is properly called specific energy or . Often only the ''useful'' or extract ...
of the hydrocarbon fuel, combined with the modular nature of canisters on which camping lights are built, allows for bright and long lasting light to be produced without complex equipment. In addition, some urban historical districts retain gas street lighting, and gas lighting is used indoors or outdoors to create or preserve a nostalgic effect.


Background

Prior to use of gaseous fuels for lighting, the early lighting fuels consisted of
olive oil Olive oil is a liquid fat obtained from olives (the fruit of ''Olea europaea''; family Oleaceae), a traditional tree crop of the Mediterranean Basin, produced by pressing whole olives and extracting the oil. It is commonly used in cooking: f ...
, beeswax, fish oil, whale oil, sesame oil, nut oil, or other similar substances, which were all liquid fuels. These were the most commonly used fuels until the late 18th century. Whale oil was especially widely used for lighting in European cities such as London through the early 19th century. Chinese records dating back 1,700 years indicate the use of natural gas in homes for lighting and heating. The natural gas was transported by means of bamboo pipes to homes. The ancient Chinese of the
Spring and Autumn period The Spring and Autumn period was a period in Chinese history from approximately 770 to 476 BC (or according to some authorities until 403 BC) which corresponds roughly to the first half of the Eastern Zhou period. The period's name derives fr ...
made the first practical use of natural gas for lighting purposes around 500 B.C. in which they used bamboo pipelines to transport both brine and natural gas for many miles, such as the ones in Zigong salt mines. Public illumination preceded by centuries the development and widespread adoption of gas lighting. In 1417, Sir Henry Barton, Lord Mayor of London, ordained "Lanthornes with lights to bee hanged out on the Winter evening betwixt Hallowtide and
Candlemas Candlemas (also spelled Candlemass), also known as the Feast of the Presentation of Jesus Christ, the Feast of the Purification of the Blessed Virgin Mary, or the Feast of the Holy Encounter, is a Christian holiday commemorating the presentati ...
see." Paris was first illuminated by an order issued in 1524, and, in the beginning of the 16th century, the inhabitants were ordered to keep lights burning in the windows of all houses that faced streets. In 1668, when some regulations were made for improving the streets of London, the residents were reminded to hang out their
lantern A lantern is an often portable source of lighting, typically featuring a protective enclosure for the light sourcehistorically usually a candle or a wick in oil, and often a battery-powered light in modern timesto make it easier to carry and h ...
s at the usual time, and, in 1690, an order was issued to hang out a light, or lamp, every night at nightfall, from Michaelmas to Christmas. By an Act of the Common Council in 1716, all housekeepers, whose houses faced any street, lane, or passage, were required to hang out, every dark night, one or more lights, to burn from six to eleven o'clock, under the penalty of one
shilling The shilling is a historical coin, and the name of a unit of modern currencies formerly used in the United Kingdom, Australia, New Zealand, other British Commonwealth countries and Ireland, where they were generally equivalent to 12 pence o ...
as a fine for failing to do so. Accumulating and escaping gases were known originally among coal miners for their adverse effects rather than their useful characteristics. Coal miners described two types of gases, one called the ''
choke damp Blackdamp (also known as stythe or choke damp) is an asphyxiant, reducing the available oxygen content of air to a level incapable of sustaining human or animal life. It is not a single gas but a mixture of unbreathable gases left after oxygen is ...
'' and the other '' fire damp''. In 1667, a paper detailing the effects of these gases was entitled, "A Description of a Well and Earth in Lancashire taking Fire, by a Candle approaching to it. Imparted by Thomas Shirley, Esq an eye-witness." Stephen Hales was the first person who procured a flammable fluid from the actual distillation of coal. His experiments with this object are related in the first volume of his ''Vegetable Statics'', published in 1726. From the distillation of "one hundred and fifty-eight grains 0.2 gof Newcastle coal, he states that he obtained one hundred and eighty cubic inches .9 Lof air, which weighed fifty-one grains .3 g being nearly one third of the whole." These results seemed to have passed without notice for several years. In the '' Philosophical Transactions of the Royal Society'' in 1733, some properties of coal gas are detailed in a paper called, "An Account of the Damp Air in a Coal-pit of
Sir James Lowther James Lowther, 1st Earl of Lonsdale (5 August 173624 May 1802) was an English country landowner and politician who sat in the House of Commons for 27 years from 1757 to 1784, when he was raised to the Peerage of Great Britain as Earl of Lonsdale. ...
, sunk within Twenty Yards of the Sea." This paper contained some striking facts relating to the flammability and other properties of coal gas. The principal properties of coal gas were demonstrated to different members of the Royal Society, and showed that after keeping the gas some time, it still retained its flammability. The scientists of the time still saw no useful purpose for it.
John Clayton John Clayton may refer to: Arts and entertainment Writing * John Clayton (architect) (died 1861), English architect and writer * John Bell Clayton (c. 1907–1955), American writer * John Clayton (sportswriter) (1954–2022), American sportswriter ...
, in an extract from a letter in the ''Philosophical Transactions'' for 1735, calls gas the "spirit" of coal and discovered its flammability by an accident. This "spirit" happened to catch fire, by coming in contact with a candle as it escaped from a fracture in one of his distillatory vessels. By preserving the gas in bladders, he entertained his friends, by exhibiting its flammability.


Early technology

It took nearly 200 years for gas to become accessible for commercial use. A Flemish alchemist, Jan Baptista van Helmont, was the first person to formally recognize gas as a state of matter. He would go on to identify several types of gases, including carbon dioxide. Over one hundred years later in 1733, Sir James Lowther had some of his miners working on a water pit for his mine. While digging the pit they hit a pocket of gas. Lowther took a sample of the gas and took it home to do some experiments. He noted, "The said air being put into a bladder … and tied close, may be carried away, and kept some days, and being afterwards pressed gently through a small pipe into the flame of a candle, will take fire, and burn at the end of the pipe as long as the bladder is gently pressed to feed the flame, and when taken from the candle after it is so lighted, it will continue burning till there is no more air left in the bladder to supply the flame." Lowther had basically discovered the principle behind gas lighting. Later in the 18th century William Murdoch (sometimes spelled "Murdock") stated: "the gas obtained by distillation from coal, peat, wood and other inflammable substances burnt with great brilliancy upon being set fire to … by conducting it through tubes, it might be employed as an economical substitute for lamps and candles." Murdoch's first invention was a lantern with a gas-filled bladder attached to a jet. He would use this to walk home at night. After seeing how well this worked he decided to light his home with gas. In 1797, Murdoch installed gas lighting in his new home as well as the workshop in which he worked. “This work was of a large scale, and he next experimented to find better ways of producing, purifying, and burning the gas.” The foundation had been laid for companies to start producing gas and other inventors to start playing with ways of using the new technology. Murdoch was the first to exploit the flammability of gas for the practical application of lighting. He worked for Matthew Boulton and
James Watt James Watt (; 30 January 1736 (19 January 1736 OS) – 25 August 1819) was a Scottish inventor, mechanical engineer, and chemist who improved on Thomas Newcomen's 1712 Newcomen steam engine with his Watt steam engine in 1776, which was fun ...
at their Soho Foundry
steam engine A steam engine is a heat engine that performs mechanical work using steam as its working fluid. The steam engine uses the force produced by steam pressure to push a piston back and forth inside a cylinder. This pushing force can be trans ...
works in Birmingham, England. In the early 1790s, while overseeing the use of his company's steam engines in tin mining in Cornwall, Murdoch began experimenting with various types of gas, finally settling on
coal gas Coal gas is a flammable gaseous fuel made from coal and supplied to the user via a piped distribution system. It is produced when coal is heated strongly in the absence of air. Town gas is a more general term referring to manufactured gaseous ...
as the most effective. He first lit his own house in
Redruth Redruth ( , kw, Resrudh) is a town and civil parishes in Cornwall, civil parish in Cornwall, England. The population of Redruth was 14,018 at the 2011 census. In the same year the population of the Camborne-Redruth urban area, which also inc ...
, Cornwall in 1792. In 1798, he used gas to light the main building of the Soho Foundry and in 1802 lit the outside in a public display of gas lighting, the lights astonishing the local population. One of the employees at the Soho Foundry, Samuel Clegg, saw the potential of this new form of lighting. Clegg left his job to set up his own gas lighting business, the Gas Light and Coke Company. A "thermolampe" using gas distilled from wood was patented in 1799, whilst German inventor Friedrich Winzer ( Frederick Albert Winsor) was the first person to patent coal-gas lighting in 1804. In 1801, Phillipe Lebon of Paris had also used gas lights to illuminate his house and gardens, and was considering how to light all of Paris. In 1820, Paris adopted gas street lighting. In 1804, Dr Henry delivered a course of lectures on
chemistry Chemistry is the science, scientific study of the properties and behavior of matter. It is a natural science that covers the Chemical element, elements that make up matter to the chemical compound, compounds made of atoms, molecules and ions ...
, at Manchester, in which he showed the mode of producing gas from coal, and the facility and advantage of its use. Dr Henry analyzed the composition and investigated the properties of carburetted hydrogen gas (i.e. methane). His experiments were numerous and accurate and made upon a variety of substances; having obtained the gas from wood, peat, different kinds of coal, oil, wax, etc., he quantified the intensity of the light from each source. Josiah Pemberton, an inventor, had for some time been experimenting on the nature of gas. A resident of Birmingham, his attention may have been roused by the exhibition at Soho. About 1806, he exhibited gas lights in a variety of forms and with great brilliance at the front of his factory in Birmingham. In 1808 he constructed an apparatus, applicable for several uses, for
Benjamin Cooke Benjamin Cooke (1734 – 14 September 1793) was an English composer, organist and teacher. Cooke was born in London and named after his father, also Benjamin Cooke (1695/1705 – 1743), a music publisher based in Covent Garden (active from 1 ...
, a manufacturer of brass tubes, gilt toys, and other articles. In 1808, Murdoch presented to the Royal Society a paper entitled "Account of the Application of Gas from Coal to Economical Purposes" in which he described his successful application of coal gas to light the extensive establishment of Messrs. Phillips and Lea. For this paper he was awarded Count Rumford's gold medal. Murdoch's statements threw great light on the comparative advantage of gas and candles, and contained much useful information on the expenses of production and management. Although the history is uncertain, David Melville has been credited with the first house and street lighting in the United States, in either 1805 or 1806 in Newport, Rhode Island. The first well-recorded public street lighting with gas was demonstrated in Pall Mall, London, on January 28, 1807, by Winsor. As artificial lighting became more common, the desire grew for it to be readily available to the public: partly because towns became much safer places after gas lamps were installed in the streets, reducing crime rates. In 1809, accordingly, the first application was made to Parliament to incorporate a company in order to accelerate the process, but the bill failed to pass. In 1810, however, the application was renewed by the same parties, and though some opposition was encountered and considerable expense incurred, the bill passed, but not without great alterations; and the London and Westminster Gas Light and Coke Company was established. Less than two years later, on December 31, 1813, Westminster Bridge was lit by gas. By 1816, Samuel Clegg obtained the patent for his horizontal rotative retort, his apparatus for purifying coal gas with
cream of lime Cream is a dairy product composed of the higher-fat layer skimmed from the top of milk before homogenization. In un-homogenized milk, the fat, which is less dense, eventually rises to the top. In the industrial production of cream, this process ...
, and for his rotative gas meter and self-acting governor.


Widespread use

Among the economic impacts of gas lighting was much longer work hours in factories. This was particularly important in Great Britain during the winter months when nights are significantly longer. Factories could even work continuously over 24 hours, resulting in increased production. Following successful commercialization, gas lighting spread to other countries. In England, the first place outside London to have gas lighting was Preston, Lancashire, in 1816; this was due to the Preston Gaslight Company run by revolutionary Joseph Dunn, who found the most improved way of brighter gas lighting. The parish church there was the first religious building to be lit by gas lighting. In America, Seth Bemis lit his factory with gas illumination from 1812 to 1813. The use of gas lights in Rembrandt Peale's Museum in
Baltimore Baltimore ( , locally: or ) is the most populous city in the U.S. state of Maryland, fourth most populous city in the Mid-Atlantic, and the 30th most populous city in the United States with a population of 585,708 in 2020. Baltimore was d ...
in 1816 was a great success. Baltimore was the first American city with gas street lights; Peale's Gas Light Company of Baltimore on February 7, 1817 lit its first street lamp at Market and Lemon Streets (currently Baltimore and Holliday Streets). The first private residence in the US illuminated by gas has been variously identified as that of David Melville (c. 1806), as described above, or of William Henry, a coppersmith, at 200 Lombard Street, Philadelphia, Pennsylvania, in 1816. In 1817, at the three stations of the Chartered Gas Company in London, 25 chaldrons (24 m3) of coal were carbonized daily, producing 300,000 cubic feet (8,500 m3) of gas. This supplied gas lamps equal to 75,000 Argand lamps each yielding the light of six candles. At the City Gas Works, in Dorset Street, Blackfriars, three chaldrons of coal were carbonized each day, providing the gas equivalent of 9,000 Argand lamps. So 28 chaldrons of coal were carbonized daily, and 84,000 lights supplied by those two companies only. At this period the principal difficulty in gas manufacture was purification. Mr. D. Wilson, of Dublin, patented a method for purifying coal gas by means of the chemical action of ammoniacal gas. Another plan was devised by Reuben Phillips, of
Exeter Exeter () is a city in Devon, South West England. It is situated on the River Exe, approximately northeast of Plymouth and southwest of Bristol. In Roman Britain, Exeter was established as the base of Legio II Augusta under the personal comm ...
, who patented the purification of coal gas by the use of dry lime. G. Holworthy, in 1818, patented a method of purifying it by passing the gas, in a highly condensed state, through iron retorts heated to a dark red. In 1820, Swedish inventor Johan Patrik Ljungström had developed a gas lighting with copper apparatuses and
chandelier A chandelier (; also known as girandole, candelabra lamp, or least commonly suspended lights) is a branched ornamental light fixture designed to be mounted on ceilings or walls. Chandeliers are often ornate, and normally use incandescent li ...
s of ink, brass and crystal, reportedly one of the first such public installations of gas lighting in the region, enhanced as a triumphal arch for the
city gate A city gate is a gate which is, or was, set within a city wall. It is a type of fortified gateway. Uses City gates were traditionally built to provide a point of controlled access to and departure from a walled city for people, vehicles, goods ...
for a royal visit of
Charles XIV John of Sweden sv, Karl Johan Baptist Julius , spouse = , issue = Oscar I of Sweden , house = Bernadotte , father = Henri Bernadotte , mother = Jeanne de Saint-Jean , birth_date = , birth_place = Pau, ...
in 1820. By 1823, numerous towns and cities throughout Britain were lit by gas. Gas light cost up to 75% less than oil lamps or candles, which helped to accelerate its development and deployment. By 1859, gas lighting was to be found all over Britain and about a thousand gas works had sprung up to meet the demand for the new fuel. The brighter lighting which gas provided allowed people to read more easily and for longer. This helped to stimulate literacy and learning, speeding up the second Industrial Revolution. In 1824 the English Association for Gas Lighting on the Continent, a sizeable business producing gas for several cities in mainland, Europe, including Berlin, was established, with Sir William Congreve, 2nd Baronet as general manager. The 1839 invention, the Bude-Light, provided a brighter and more economical lamp. Oil-gas appeared in the field as a rival of coal gas. In 1815,
John Taylor John Taylor, Johnny Taylor or similar may refer to: Academics *John Taylor (Oxford), Vice-Chancellor of Oxford University, 1486–1487 *John Taylor (classical scholar) (1704–1766), English classical scholar *John Taylor (English publisher) (178 ...
patented an apparatus for the decomposition of "oil" and other animal substances. Public attention was attracted to "oil-gas" by the display of the patent apparatus at Apothecary's Hall, by
Taylor & Martineau Philip Taylor (1786–1870) was an English civil engineer. A significant innovator of the 1820s in steam engine design, he moved abroad to become an industrial leader in France and Italy (Kingdom of Sardinia). Early life He was the fourth son of ...
. In 1891 the gas mantle was invented by the Austrian chemist Carl Auer von Welsbach. This eliminated the need for special illuminating gas (a synthetic mixture of hydrogen and hydrocarbon gases produced by destructive distillation of
bituminous coal Bituminous coal, or black coal, is a type of coal containing a tar-like substance called bitumen or asphalt. Its coloration can be black or sometimes dark brown; often there are well-defined bands of bright and dull material within the seams. It ...
or peat) to get bright shining flames.
Acetylene Acetylene (systematic name: ethyne) is the chemical compound with the formula and structure . It is a hydrocarbon and the simplest alkyne. This colorless gas is widely used as a fuel and a chemical building block. It is unstable in its pure ...
was also used from about 1898 for gas lighting on a smaller scale. Illuminating gas was used for gas lighting, as it produces a much brighter light than natural gas or water gas. Illuminating gas was much less toxic than other forms of coal gas, but less could be produced from a given quantity of coal. The experiments with distilling coal were described by John Clayton in 1684. George Dixon's pilot plant exploded in 1760, setting back the production of illuminating gas a few years. The first commercial application was in a Manchester cotton mill in 1806. In 1901, studies of the defoliant effect of leaking gas pipes led to the discovery that ethylene is a
plant hormone Plant hormone (or phytohormones) are signal molecules, produced within plants, that occur in extremely low concentrations. Plant hormones control all aspects of plant growth and development, from embryogenesis, the regulation of organ size, pa ...
. Throughout the 19th century and into the first decades of the 20th, the gas was manufactured by the
gasification Gasification is a process that converts biomass- or fossil fuel-based carbonaceous materials into gases, including as the largest fractions: nitrogen (N2), carbon monoxide (CO), hydrogen (H2), and carbon dioxide (). This is achieved by reacting ...
of coal. Later in the 19th century, natural gas began to replace coal gas, first in the US, and then in other parts of the world. In the United Kingdom, coal gas was used until the early 1970s.


Russia

The history of the Russian gas industry began with retired Lieutenant Pyotr Sobolevsky (1782–1841), who improved Philippe le Bon's design for a "thermolamp" and presented it to Emperor Alexander I in 1811; in January 1812, Sobolevsky was instructed to draw up a plan for gas street-lighting for St. Petersburg. The
French invasion of Russia The French invasion of Russia, also known as the Russian campaign, the Second Polish War, the Army of Twenty nations, and the Patriotic War of 1812 was launched by Napoleon Bonaparte to force the Russian Empire back into the continental block ...
delayed implementation, but St. Petersburg's Governor General Mikhail Miloradovich, who had seen the gas lighting of Vienna, Paris and other European cities, initiated experimental work on gas lighting for the capital, using British apparatus for obtaining gas from pit coal, and by the autumn of 1819, Russia's first gas street light was lit on one of the streets on Aptekarsky Island. In February 1835, the Company for Gas Lighting St. Petersburg was founded; towards the end of that year, a factory for the production of lighting gas was constructed near the Obvodny Canal, using pit coal brought in by ship from Cardiff; and 204 gas lamps were ceremonially lit in St. Petersburg on September 27, 1839. Over the next 10 years, their numbers almost quadrupled, to reach 800. By the middle of the 19th century, the central streets and buildings of the capital were illuminated: the Palace Square, Bolshaya and Malaya Morskaya streets, Nevsky and Tsarskoselsky Avenues, Passage Arcade, Noblemen's Assembly, the Technical Institute and
Peter and Paul Fortress The Peter and Paul Fortress is the original citadel of St. Petersburg, Russia, founded by Peter the Great in 1703 and built to Domenico Trezzini's designs from 1706 to 1740 as a star fortress. Between the first half of the 1700s and early 1920s i ...
.


Theatrical use

It took many years of development and testing before gas lighting for the stage was commercially available. Gas technology was then installed in just about every major theatre in the world. But gas lighting was short-lived because the electric light bulb soon followed. In the 19th century, gas stage lighting went from a crude experiment to the most popular way of lighting theatrical stages. In 1804, Frederick Albert Winsor first demonstrated the way to use gas to light the stage in London at the Lyceum Theatre. Although the demonstration and all the lead research were being done in London, "in 1816 at the Chestnut Street Theatre in Philadelphia was the earliest gas lit theatre in world". In 1817 the Lyceum,
Drury Lane Drury Lane is a street on the eastern boundary of the Covent Garden area of London, running between Aldwych and High Holborn. The northern part is in the borough of Camden and the southern part in the City of Westminster. Notable landmarks ...
, and Covent Garden theatres were all lit by gas. Gas was brought into the building by "miles of rubber tubing from outlets in the floor called 'water joints'" which "carried the gas to border-lights and wing lights". But before it was distributed, the gas came through a central distribution point called a "gas table",Sellman 15 which varied the brightness by regulating the gas supply, and the gas table, which allowed control of separate parts of the stage. Thus it became the first stage 'switchboard'.Pilbrow 174 By the 1850s, gas lighting in theatres had spread practically all over the United States and Europe. Some of the largest installations of gas lighting were in large auditoriums, like the
Theatre de Chatelet Theatre or theater is a collaborative form of performing art that uses live performers, usually actor, actors or actresses, to present the experience of a real or imagined event before a live audience in a specific place, often a stage. The p ...
, built in 1862.Penzel 69 In 1875, the new
Paris Opera The Paris Opera (, ) is the primary opera and ballet company of France. It was founded in 1669 by Louis XIV as the , and shortly thereafter was placed under the leadership of Jean-Baptiste Lully and officially renamed the , but continued to be ...
was constructed. "Its lighting system contained more than twenty-eight miles [] of gas piping, and its gas table had no fewer than eighty-eight stopcocks, which controlled nine hundred and sixty gas jets." The theatre that used the most gas lighting was Astley's Equestrian Amphitheatre in London. According to the Illustrated London News, "Everywhere white and gold meets the eye, and about 200,000 gas jets add to the glittering effect of the auditorium … such a blaze of light and splendour has scarcely ever been witnessed, even in dreams." Theatres switched to gas lighting because it was more economical than using candles and also required less labor to operate. With gas lighting, theatres would no longer need to have people tending to candles during a performance, or having to light each candle individually. "It was easier to light a row of gas jets than a greater quantity of candles high in the air." Theatres also no longer needed to worry about wax dripping on the actors during a show. Gas lighting also had an effect on the actors. As the stage was brighter, they could now use less make-up and their motions did not have to be as exaggerated. Half-lit stages had become fully lit stages. Production companies were so impressed with the new technology that one said, "This light is perfect for the stage. One can obtain gradation of brightness that is really magical." The best result was the improved respect from the audience. There was no more shouting or riots. The light pushed the actors more up stage behind the proscenium, helping the audience concentrate more on the action that was taking place on stage rather than what was going on in the house. Management had more authority on what went on during the show because they could see. Gaslight was the leading cause of behavior change in theaters. They were no longer places for mingling and orange selling, but places of respected entertainment.


Types of lighting instruments

There were six types of burners, but four burners were really experimented with. * The first burner used was the single-jet burner, which produced a small flame. The tip of the burner was made out of lead, which absorbed heat, causing the flame to be smaller in size. It was discovered that the flame would burn brighter if the metal was mixed with other components, such as porcelain. * Flat burners were invented mainly to distribute gas and light evenly to the systems. * The fishtail burner was similar to the flat burner, but it produced a brighter flame and conducted less heat. * The last burner that was experimented with was the
Welsbach burner Welsbach is a surname. Notable people with the surname include: * Alois Auer Ritter von Welsbach(an inventor/polymath) * Carl Auer von Welsbach(a scientist and inventor) {{surname, Welsbach