Second Industrial Revolution

TheSecond Industrial Revolution,also known as theTechnological Revolution,was a phase of rapidscientific discovery,standardisation,mass productionandindustrialisationfrom the late 19th century into the early 20th century. TheFirst Industrial Revolution,which ended in the middle of the 19th century, was punctuated by a slowdown in important inventions before the Second Industrial Revolution in 1870. Though a number of its events can be traced to earlier innovations in manufacturing, such as the establishment of amachine toolindustry, the development of methods for manufacturinginterchangeable parts,as well as the invention of theBessemer processandopen hearth furnaceto produce steel, later developments heralded the Second Industrial Revolution, which is generally dated between 1870 and 1914 (the beginning ofWorld War I).

Second Industrial Revolution
c.1870– c.1914
An Austrianrailwayin1895
Location	Europe East Asia North America
Key events	Adoption of thetelegraph Electrification Production line
Chronology First Industrial Revolution Third Industrial Revolution

Atelegraph keyused to transmit text messages inMorse code

Theocean linerSSKaiser Wilhelm der Grosse,asteamboat.As the main means of trans-oceanic travel for more than a century, ocean liners were essential to the transport needs of national governments, commercial enterprises and the general public.

Advancements in manufacturing and production technology enabled the widespread adoption of technological systems such astelegraphand railroad networks,gasandwater supply,andsewage systems,which had earlier been limited to a few select cities. The enormous expansion of rail and telegraph lines after 1870 allowed unprecedented movement of people and ideas, which culminated in a new wave ofcolonialismandglobalization.In the same time period, new technological systems were introduced, most significantlyelectrical powerand telephones. The Second Industrial Revolution continued into the 20th century with early factoryelectrificationand theproduction line;it ended at the beginning of World War I.

Starting in 1947, theInformation Ageis sometimes also called the Third Industrial Revolution.

Overview

The Second Industrial Revolution was a period of rapid industrial development, primarily in the United Kingdom, Germany, and the United States, but also in France, theLow Countries,Italy and Japan. It followed on from theFirst Industrial Revolutionthat began in Britain in the late 18th century that then spread throughout Western Europe. It came to an end with the start of theWorld War I.While the First Revolution was driven by limited use ofsteam engines,interchangeable partsandmass production,and was largely water-powered, especially in the United States, the Second was characterized by the build-out of railroads, large-scale iron and steel production, widespread use ofmachineryin manufacturing, greatly increased use of steam power, widespread use of thetelegraph,use of petroleum and the beginning ofelectrification.It also was the period during which modern organizational methods for operating large-scale businesses over vast areas came into use.

The concept was introduced byPatrick Geddes,Cities in Evolution(1910), and was being used by economists such asErich Zimmermann(1951),butDavid Landes' use of the term in a 1966 essay and inThe Unbound Prometheus(1972) standardized scholarly definitions of the term, which was most intensely promoted byAlfred Chandler(1918–2007). However, some continue to express reservations about its use. In 2003, Landes stressed the importance of new technologies, especially theinternal combustion engine,petroleum, new materials and substances, including alloys andchemicals,electricity and communication technologies, such as thetelegraph,telephone, and radio.

One author has called the period from 1867 to 1914, during which most of the great innovations were developed, "The Age ofSynergy"since the inventions and innovations were engineering andscience-based.

Industry and technology

A synergy between iron and steel, railroads and coal developed at the beginning of the Second Industrial Revolution. Railroads allowed cheap transportation of materials and products, which in turn led to cheap rails to build more roads. Railroads also benefited from cheap coal for their steam locomotives. This synergy led to the laying of 75,000 miles of track in the U.S. in the 1880s, the largest amount anywhere in world history.

Iron

Thehot blasttechnique, in which the hotflue gasfrom a blast furnace is used topreheatcombustion air blown into ablast furnace,was invented and patented byJames Beaumont Neilsonin 1828 atWilsontown Ironworksin Scotland. Hot blast was the single most important advance in fuel efficiency of the blast furnace as it greatly reduced the fuel consumption for making pig iron, and was one of the most important technologies developed during theIndustrial Revolution.Falling costs for producingwrought ironcoincided with the emergence of the railway in the 1830s.

The early technique of hot blast used iron for the regenerative heating medium. Iron caused problems with expansion and contraction, which stressed the iron and caused failure.Edward Alfred Cowperdeveloped the Cowper stove in 1857.This stove used firebrick as a storage medium, solving the expansion and cracking problem. The Cowper stove was also capable of producing high heat, which resulted in very high throughput of blast furnaces. The Cowper stove is still used in today's blast furnaces.

With the greatly reduced cost of producing pig iron withcokeusing hot blast, demand grew dramatically and so did the size of blast furnaces.

Steel

A diagram of theBessemer converter.Air blown through holes in the converter bottom creates a violent reaction in the molten pig iron that oxidizes the excess carbon, converting the pig iron to pure iron or steel, depending on the residual carbon.

TheBessemer process,invented bySir Henry Bessemer,allowed themass-productionof steel, increasing the scale and speed of production of this vital material, and decreasing the labor requirements. The key principle was the removal of excess carbon and other impurities frompig ironbyoxidationwith air blown through the molten iron. The oxidation also raises the temperature of the iron mass and keeps it molten.

The "acid" Bessemer process had a serious limitation in that it required relatively scarcehematiteorewhich is low in phosphorus.Sidney Gilchrist Thomasdeveloped a more sophisticated process to eliminate thephosphorusfrom iron. Collaborating with his cousin,Percy Gilchrista chemist at theBlaenavon Ironworks,Wales,he patented his process in 1878;Bolckow Vaughan& Co. inYorkshirewas the first company to use his patented process.His process was especially valuable on the continent of Europe, where the proportion of phosphoric iron was much greater than in England, and both in Belgium and in Germany the name of the inventor became more widely known than in his own country. In America, although non-phosphoric iron largely predominated, an immense interest was taken in the invention.

TheBarrow Hematite Steel Companyoperated 18 Bessemer converters and owned the largest steelworks in the world at the turn of the 20th century.

The next great advance in steel making was theSiemens–Martin process.SirCharles William Siemensdeveloped his regenerative furnace in the 1850s, for which he claimed in 1857 to able to recover enough heat to save 70–80% of the fuel. The furnace operated at a high temperature by usingregenerative preheatingof fuel and air forcombustion.Through this method, an open-hearth furnace can reach temperatures high enough to melt steel, but Siemens did not initially use it in that manner.

French engineerPierre-Émile Martinwas the first to take out a license for the Siemens furnace and apply it to the production of steel in 1865. The Siemens–Martin process complemented rather than replaced theBessemer process.Its main advantages were that it did not expose the steel to excessive nitrogen (which would cause the steel to become brittle), it was easier to control, and that it permitted the melting and refining of large amounts of scrap steel, lowering steel production costs and recycling an otherwise troublesome waste material. It became the leading steel making process by the early 20th century.

The availability of cheap steel allowed building larger bridges, railroads, skyscrapers, and ships.Other important steel products—also made using the open hearth process—weresteel cable,steel rod and sheet steel which enabled large, high-pressure boilers and high-tensile strength steel for machinery which enabled much more powerful engines, gears and axles than were previously possible. With large amounts of steel it became possible to build much more powerful guns and carriages, tanks,armored fighting vehiclesand naval ships.

Rail

A rail rolling mill inDonetskin 1887

The increase in steel production from the 1860s meant that railways could finally be made from steel at a competitive cost. Being a much more durable material, steel steadily replaced iron as the standard for railway rail, and due to its greater strength, longer lengths of rails could now be rolled.Wrought ironwas soft and contained flaws caused by includeddross.Iron rails could also not support heavy locomotives and were damaged byhammer blow.The first to make durablerailsof steel rather thanwrought ironwasRobert Forester Mushetat theDarkhill Ironworks,Gloucestershire in 1857.

The first of Mushet's steel rails was sent toDerby Midland railway station.The rails were laid at part of the station approach where the iron rails had to be renewed at least every six months, and occasionally every three. Six years later, in 1863, the rail seemed as perfect as ever, although some 700 trains had passed over it daily.This provided the basis for the accelerated construction of railways throughout the world in the late nineteenth century.

The first commercially available steel rails in the US were manufactured in 1867 at theCambria Iron WorksinJohnstown, Pennsylvania.

Steel rails lasted over ten times longer than did iron,and with the falling cost of steel, heavier weight rails were used. This allowed the use of more powerful locomotives, which could pull longer trains, and longer rail cars, all of which greatly increased the productivity of railroads.Rail became the dominant form of transport infrastructure throughout the industrialized world,producing a steady decrease in the cost of shipping seen for the rest of the century.

Electrification

Main articles:ElectrificationandElectricity

The theoretical and practical basis for the harnessing of electric power was laid by the scientist and experimentalistMichael Faraday.Through his research on themagnetic fieldaround aconductorcarrying adirect current,Faraday established the basis for the concept of the electromagnetic field in physics.Hisinventionsofelectromagnetic rotary deviceswere the foundation of the practical use of electricity in technology.

U.S. Patent#223898: Electric-Lamp, issued 27 January 1880

In 1881,Sir Joseph Swan,inventor of the first feasibleincandescent light bulb,supplied about 1,200 Swan incandescent lamps to theSavoy Theatrein the City of Westminster, London, which was the first theatre, and the first public building in the world, to be lit entirely by electricity.Swan's lightbulb had already been used in 1879 to light Mosley Street, inNewcastle upon Tyne,the first electrical street lighting installation in the world.This set the stage for the electrification of industry and the home. The first large scale central distribution supply plant was opened atHolborn Viaductin London in 1882and later atPearl Street Stationin New York City.

Three-phaserotating magnetic field of anAC motor.The three poles are each connected to a separate wire. Each wire carries current 120 degrees apart in phase. Arrows show the resulting magnetic force vectors. Three phase current is used in commerce and industry.

The first modern power station in the world was built by the Englishelectrical engineerSebastian de FerrantiatDeptford.Built on an unprecedented scale and pioneering the use of high voltage (10,000V)alternating current,it generated 800 kilowatts and supplied central London. On its completion in 1891 it supplied high-voltageAC powerthat was then "stepped down" with transformers for consumer use on each street.Electrificationallowed the final major developments in manufacturing methods of the Second Industrial Revolution, namely theassembly lineandmass production.

Electrificationwas called "the most important engineering achievement of the 20th century" by theNational Academy of Engineering.Electric lighting in factories greatly improved working conditions, eliminating the heat and pollution caused by gas lighting, and reducing the fire hazard to the extent that the cost of electricity for lighting was often offset by the reduction in fire insurance premiums.Frank J. Spraguedeveloped the first successful DC motor in 1886. By 1889 110 electricstreet railwayswere either using his equipment or in planning. The electric street railway became a major infrastructure before 1920. The AC motor (Induction motor) was developed in the 1890s and soon began to be used in theelectrificationof industry.Household electrification did not become common until the 1920s, and then only in cities.Fluorescent lightingwas commercially introduced at the1939 World's Fair.

Electrification also allowed the inexpensive production ofelectro-chemicals,such as aluminium, chlorine, sodium hydroxide, and magnesium.

Machine tools

Main article:Machine tool

A graphic representation of formulas for the pitches of threads of screw bolts

The use ofmachine toolsbegan with the onset of theFirst Industrial Revolution.The increase inmechanizationrequired more metal parts, which were usually made ofcast ironorwrought iron—and hand working lacked precision and was a slow and expensive process. One of the first machine tools wasJohn Wilkinson's boring machine, that bored a precise hole inJames Watt's first steam engine in 1774. Advances in the accuracy of machine tools can be traced toHenry Maudslayand refined byJoseph Whitworth.Standardization of screw threads began withHenry Maudslayaround 1800, when the modernscrew-cutting lathemadeinterchangeableV-thread machine screws a practical commodity.

In 1841,Joseph Whitworthcreated a design that, through its adoption by many British railway companies, became the world's first national machine tool standard calledBritish Standard Whitworth.During the 1840s through 1860s, this standard was often used in the United States and Canada as well, in addition to myriad intra- and inter-company standards.

The importance ofmachine toolsto mass production is shown by the fact that production of theFord Model Tused 32,000 machine tools, most of which were powered by electricity.Henry Fordis quoted as saying that mass production would not have been possible without electricity because it allowed placement of machine tools and other equipment in the order of the work flow.

Paper making

Main article:Paper machine

The first paper making machine was theFourdrinier machine,built by Sealy andHenry Fourdrinier,stationers in London. In 1800,Matthias Koops,working in London, investigated the idea of using wood to make paper, and began his printing business a year later. However, his enterprise was unsuccessful due to the prohibitive cost at the time.

It was in the 1840s, thatCharles Fenertyin Nova Scotia andFriedrich Gottlob Kellerin Saxony both invented a successful machine which extracted the fibres from wood (as with rags) and from it, made paper. This started a new era forpaper making,and, together with the invention of thefountain penand the mass-producedpencilof the same period, and in conjunction with the advent of the steam driven rotaryprinting press,wood based paper caused a major transformation of the 19th century economy and society in industrialized countries. With the introduction of cheaper paper, schoolbooks, fiction, non-fiction, and newspapers became gradually available by 1900. Cheap wood based paper also allowed keeping personal diaries or writing letters and so, by 1850, theclerk,or writer, ceased to be a high-status job. By the 1880s chemical processes for paper manufacture were in use, becoming dominant by 1900.

Petroleum

Thepetroleum industry,both production andrefining,began in 1848 with the first oil works in Scotland. The chemistJames Youngset up a tiny business refining the crude oil in 1848. Young found that by slow distillation he could obtain a number of useful liquids from it, one of which he named "paraffine oil" because at low temperatures it congealed into a substance resembling paraffin wax.In 1850 Young built the first truly commercial oil-works and oil refinery in the world atBathgate,using oil extracted from locally minedtorbanite,shale, and bituminous coal to manufacturenaphthaand lubricating oils; paraffin for fuel use and solid paraffin were not sold till 1856.

Cable tool drillingwas developed in ancient China and was used for drilling brine wells. The salt domes also held natural gas, which some wells produced and which was used for evaporation of the brine. Chinese well drilling technology was introduced to Europe in 1828.

Although there were many efforts in the mid-19th century to drill for oil,Edwin Drake's 1859 well near Titusville, Pennsylvania, is considered the first "modern oil well".Drake's well touched off a major boom in oil production in the United States.Drake learned of cable tool drilling from Chinese laborers in the U. S.The first primary product was kerosene for lamps and heaters.Similar developments aroundBakufed the European market.

Kerosene lighting was much more efficient and less expensive than vegetable oils, tallow and whale oil. Although town gas lighting was available in some cities, kerosene produced a brighter light until the invention of thegas mantle.Both were replaced by electricity for street lighting following the 1890s and for households during the 1920s. Gasoline was an unwanted byproduct of oil refining until automobiles were mass-produced after 1914, and gasoline shortages appeared during World War I. The invention of theBurton processforthermal crackingdoubled the yield of gasoline, which helped alleviate the shortages.

Chemical

TheBASF-chemical factories inLudwigshafen,Germany, in 1881

Synthetic dyewas discovered by English chemistWilliam Henry Perkinin 1856. At the time, chemistry was still in a quite primitive state; it was still a difficult proposition to determine the arrangement of the elements in compounds and chemical industry was still in its infancy. Perkin's accidental discovery was thatanilinecould be partly transformed into a crude mixture which when extracted with alcohol produced a substance with an intense purple colour. He scaled up production of the new "mauveine",and commercialized it as the world's first synthetic dye.

After the discovery of mauveine, many newaniline dyesappeared (some discovered by Perkin himself), and factories producing them were constructed across Europe. Towards the end of the century, Perkin and other British companies found their research and development efforts increasingly eclipsed by the German chemical industry which became world dominant by 1914.

Maritime technology

HMSDevastation,built in 1871, as it appeared in 1896

Propellers of theRMSOlympicin 1911

This era saw the birth of the modern ship as disparate technological advances came together.

Thescrew propellerwas introduced in 1835 byFrancis Pettit Smithwho discovered a new way of building propellers by accident. Up to that time, propellers were literally screws, of considerable length. But during the testing of a boat propelled by one, the screw snapped off, leaving a fragment shaped much like a modern boat propeller. The boat moved faster with the broken propeller.The superiority of screw against paddles was taken up by navies. Trials with Smith'sSSArchimedes,the first steam driven screw, led to the famous tug-of-war competition in 1845 between the screw-drivenHMSRattlerand the paddle steamerHMSAlecto;the former pulling the latter backward at 2.5 knots (4.6 km/h).

The first seagoing iron steamboat was built byHorseley Ironworksand named theAaron Manby.It also used an innovative oscillating engine for power. The boat was built at Tipton using temporary bolts, disassembled for transportation to London, and reassembled on the Thames in 1822, this time using permanent rivets.

Other technological developments followed, including the invention of thesurface condenser,which allowed boilers to run on purified water rather than salt water, eliminating the need to stop to clean them on long sea journeys. TheGreat Western ,built by engineerIsambard Kingdom Brunel,was the longest ship in the world at 236 ft (72 m) with a 250-foot (76 m)keeland was the first to prove that transatlantic steamship services were viable. The ship was constructed mainly from wood, but Brunel added bolts and iron diagonal reinforcements to maintain the keel's strength. In addition to its steam-poweredpaddle wheels,the ship carried four masts for sails.

Brunel followed this up with theGreat Britain,launched in 1843 and considered the first modern ship built of metal rather than wood, powered by an engine rather than wind or oars, and driven by propeller rather than paddle wheel.Brunel's vision and engineering innovations made the building of large-scale, propeller-driven, all-metal steamships a practical reality, but the prevailing economic and industrial conditions meant that it would be several decades before transoceanic steamship travel emerged as a viable industry.

Highly efficientmultiple expansion steam enginesbegan being used on ships, allowing them to carry less coal than freight.The oscillating enginewas first built byAaron Manbyand Joseph Maudslay in the 1820s as a type of direct-acting engine that was designed to achieve further reductions in engine size and weight. Oscillating engines had the piston rods connected directly to the crankshaft, dispensing with the need for connecting rods. To achieve this aim, the engine cylinders were not immobile as in most engines, but secured in the middle by trunnions which allowed the cylinders themselves to pivot back and forth as the crankshaft rotated, hence the termoscillating.

It wasJohn Penn,engineer for theRoyal Navywho perfected the oscillating engine. One of his earliest engines was thegrasshopper beam engine.In 1844 he replaced the engines of theAdmiraltyyacht,HMSBlack Eaglewith oscillating engines of double the power, without increasing either the weight or space occupied, an achievement which broke the naval supply dominance ofBoulton & WattandMaudslay, Son & Field.Penn also introduced thetrunk enginefor driving screw propellers in vessels of war.HMSEncounter(1846) andHMSArrogant(1848) were the first ships to be fitted with such engines and such was their efficacy that by the time of Penn's death in 1878, the engines had been fitted in 230 ships and were the first mass-produced, high-pressure and high-revolution marine engines.

The revolution in naval design led to the first modernbattleshipsin the 1870s, evolved from theironcladdesign of the 1860s. TheDevastation-classturret shipswere built for the BritishRoyal Navyas the first class of ocean-goingcapital shipthat did not carrysails,and the first whose entire main armament was mounted on top of the hull rather than inside it.

Rubber

Thevulcanizationof rubber, by AmericanCharles Goodyearand EnglishmanThomas Hancockin the 1840s paved the way for a growing rubber industry, especially the manufacture ofrubber tyres

John Boyd Dunlopdeveloped the first practicalpneumatictyre in 1887 in South Belfast.Willie Humedemonstrated the supremacy of Dunlop's newly invented pneumatic tyres in 1889, winning the tyre's first ever races in Ireland and then England. Dunlop's development of the pneumatic tyre arrived at a crucial time in the development ofroad transportand commercial production began in late 1890.

Bicycles

The modern bicycle was designed by the English engineerHarry John Lawsonin 1876, although it wasJohn Kemp Starleywho produced the first commercially successful safety bicycle a few years later.Its popularity soon grew, causing thebike boomof the 1890s.

Road networks improved greatly in the period, using theMacadammethod pioneered by Scottish engineerJohn Loudon McAdam,and hard surfaced roads were built around the time of the bicycle craze of the 1890s. Moderntarmacwas patented by British civil engineerEdgar Purnell Hooleyin 1901.

Automobile

Benz Patent-Motorwagen, first production automobile, first built in 1885

The 1910 Ford Model T

German inventorKarl Benzpatented the world'sfirst automobilein 1886. It featured wire wheels (unlike carriages' wooden ones)with a four-stroke engine of his own design between the rear wheels, with a very advanced coil ignitionand evaporative cooling rather than a radiator.Power was transmitted by means of tworoller chainsto the rear axle. It was the firstautomobileentirely designed as such to generate its own power, not simply a motorized-stage coach or horse carriage.

Benz began to sell the vehicle, advertising it as the Benz Patent Motorwagen, in the late summer of 1888, making it the first commercially available automobile in history.

Henry Fordbuilt his first car in 1896 and worked as a pioneer in the industry, with others who would eventually form their own companies, until the founding of Ford Motor Company in 1903.Ford and others at the company struggled with ways to scale up production in keeping with Henry Ford's vision of a car designed and manufactured on a scale so as to be affordable by the average worker.The solution that Ford Motor developed was a completely redesigned factory withmachine toolsand special purpose machines that were systematically positioned in the work sequence. All unnecessary human motions were eliminated by placing all work and tools within easy reach, and where practical on conveyors, forming theassembly line,the complete process being calledmass production.This was the first time in history when a large, complex product consisting of 5000 parts had been produced on a scale of hundreds of thousands per year.The savings frommass productionmethods allowed the price of theModel Tto decline from $780 in 1910 to $360 in 1916. In 1924 2 million T-Fords were produced and retailed $290 each.($5,321 in 2024 dollars)

Applied science

Applied scienceopened many opportunities. By the middle of the 19th century there was a scientific understanding of chemistry and a fundamental understanding ofthermodynamicsand by the last quarter of the century both of these sciences were near their present-day basic form. Thermodynamic principles were used in the development ofphysical chemistry.Understanding chemistry greatly aided the development of basic inorganic chemical manufacturing and the aniline dye industries.

The science ofmetallurgywas advanced through the work ofHenry Clifton Sorbyand others. Sorby pioneeredmetallography,the study of metals under themicroscope,which paved the way for a scientific understanding of metal and the mass-production of steel. In 1863 he used etching with acid to study the microscopic structure of metals and was the first to understand that a small but precise quantity of carbon gave steel its strength.This paved the way forHenry BessemerandRobert Forester Mushetto develop the method for mass-producing steel.

Other processes were developed for purifying various elements such aschromium,molybdenum,titanium,vanadiumandnickelwhich could be used for making alloys with special properties, especially with steel.Vanadium steel,for example, is strong and fatigue resistant, and was used in half the automotive steel.Alloy steels were used for ball bearings which were used in large scale bicycle production in the 1880s. Ball and roller bearings also began being used in machinery. Other important alloys are used in high temperatures, such as steam turbine blades, and stainless steels for corrosion resistance.

The work ofJustus von LiebigandAugust Wilhelm von Hofmannlaid the groundwork for modern industrial chemistry. Liebig is considered the "father of the fertilizer industry" for his discovery ofnitrogenas an essential plant nutrient and went on to establishLiebig's Extract of Meat Companywhich produced theOxomeat extract.Hofmann headed a school of practical chemistry in London, under the style of theRoyal College of Chemistry,introduced modern conventions formolecular modelingand taught Perkin who discovered the first synthetic dye.

The science ofthermodynamicswas developed into its modern form bySadi Carnot,William Rankine,Rudolf Clausius,William Thomson,James Clerk Maxwell,Ludwig BoltzmannandJ. Willard Gibbs.These scientific principles were applied to a variety of industrial concerns, including improving the efficiency of boilers andsteam turbines.The work ofMichael Faradayand others was pivotal in laying the foundations of the modern scientific understanding of electricity.

Scottish scientistJames Clerk Maxwellwas particularly influential—his discoveries ushered in the era ofmodern physics.His most prominent achievement was to formulate aset of equationsthat described electricity,magnetism,andopticsas manifestations of the samephenomenon,namely theelectromagnetic field.The unification of light and electrical phenomena led to the prediction of the existence ofradio wavesand was the basis for the future development of radio technology byHughes,Marconiand others.

Maxwell himself developed the first durablecolour photographin 1861 and published the first scientific treatment ofcontrol theory.Control theory is the basis forprocess control,which is widely used inautomation,particularly forprocess industries,and for controlling ships and airplanes.Control theorywas developed to analyze the functioning ofcentrifugal governorson steam engines. These governors came into use in the late 18th century on wind and water mills to correctly position the gap between mill stones, and were adapted to steam engines byJames Watt.Improved versions were used to stabilize automatic tracking mechanisms of telescopes and to control speed of ship propellers and rudders. However, those governors were sluggish and oscillated about theset point.James Clerk Maxwellwrote a paper mathematically analyzing the actions of governors, which marked the beginning of the formal development of control theory. The science was continually improved and evolved into an engineering discipline.

Fertilizer

Justus von Liebigwas the first to understand the importance ofammoniaasfertilizer,and promoted the importance of inorganic minerals toplant nutrition.In England, he attempted to implement his theories commercially through a fertilizer created by treatingphosphate of limein bone meal withsulfuric acid.Another pioneer wasJohn Bennet Laweswho began to experiment on the effects of various manures on plants growing in pots in 1837, leading to a manure formed by treating phosphates with sulphuric acid; this was to be the first product of the nascent artificial manure industry.

The discovery ofcoprolitesin commercial quantities inEast Anglia,led Fisons andEdward Packardto develop one of the first large-scale commercial fertilizer plants atBramford,andSnapein the 1850s. By the 1870ssuperphosphatesproduced in those factories, were being shipped around the world from the port atIpswich.

TheBirkeland–Eyde processwas developed by Norwegian industrialist and scientistKristian Birkelandalong with his business partnerSam Eydein 1903,but was soon replaced by the much more efficientHaber process, developed by theNobel Prize-winning chemistsCarl BoschofIG FarbenandFritz Haberin Germany.The process used molecular nitrogen (N₂) and methane (CH₄) gas in an economically sustainable synthesis ofammonia(NH₃). The ammonia produced in the Haber process is the main raw material for production ofnitric acid.

Engines and turbines

Thesteam turbinewas developed by SirCharles Parsonsin 1884. His first model was connected to adynamothat generated 7.5 kW (10 hp) of electricity.The invention of Parson's steam turbine made cheap and plentiful electricity possible and revolutionizedmarine transport and naval warfare.By the time of Parson's death, his turbine had been adopted for all major world power stations.Unlike earlier steam engines, the turbine produced rotary power rather than reciprocating power which required a crank and heavy flywheel. The large number of stages of the turbine allowed for high efficiency and reduced size by 90%. The turbine's first application was in shipping followed by electric generation in 1903.

The first widely usedinternal combustion enginewas theOtto typeof 1876. From the 1880s until electrification it was successful in small shops because small steam engines were inefficient and required too much operator attention.The Otto engine soon began being used to power automobiles, and remains as today's common gasoline engine.

Thediesel enginewas independently designed byRudolf DieselandHerbert Akroyd Stuartin the 1890s using thermodynamic principles with the specific intention of being highly efficient. It took several years to perfect and become popular, but found application in shipping before powering locomotives. It remains the world's most efficient prime mover.

Telecommunications

Major telegraph lines in 1891

The first commercialtelegraphsystem was installed by SirWilliam Fothergill CookeandCharles Wheatstonein May 1837 betweenEuston railway stationandCamden Townin London.

The rapid expansion of telegraph networks took place throughout the century, with the firstundersea telegraph cablebeing built byJohn Watkins Brettbetween France and England. TheAtlantic Telegraph Companywas formed in London in 1856 to undertake construction of a commercial telegraph cable across the Atlantic Ocean. This was successfully completed on 18 July 1866 by the shipSSGreat Eastern,captained bySir James Andersonafter many mishaps along the away.From the 1850s until 1911, British submarine cable systems dominated the world system. This was set out as a formal strategic goal, which became known as theAll Red Line.

The telephone was patented in 1876 byAlexander Graham Bell,and like the early telegraph, it was used mainly to speed business transactions.

As mentioned above, one of the most important scientific advancements in all of history was the unification of light, electricity and magnetism throughMaxwell's electromagnetic theory.A scientific understanding of electricity was necessary for the development of efficient electric generators, motors and transformers.David Edward HughesandHeinrich Hertzboth demonstrated and confirmed the phenomenon of electromagnetic waves that had been predicted by Maxwell.

It was Italian inventorGuglielmo Marconiwho successfully commercialized radio at the turn of the century.He foundedThe Wireless Telegraph & Signal Companyin Britain in 1897and in the same year transmittedMorse codeacrossSalisbury Plain,sent the first ever wireless communication over open seaand made the first transatlantic transmission in 1901 fromPoldhu,Cornwall toSignal Hill,Newfoundland.Marconi built high-powered stations on both sides of the Atlantic and began a commercial service to transmit nightly news summaries to subscribing ships in 1904.

The key development of thevacuum tubeby SirJohn Ambrose Flemingin 1904 underpinned the development of modern electronics and radio broadcasting.Lee De Forest's subsequent invention of thetriodeallowed the amplification of electronic signals, which paved the way for radio broadcasting in the 1920s.

Modern business management

Railroads are credited with creating the modernbusiness enterpriseby scholars such as Alfred Chandler. Previously, the management of most businesses had consisted of individual owners or groups of partners, some of whom often had little daily hands-on operations involvement. Centralized expertise in the home office was not enough. A railroad required expertise available across the whole length of its trackage, to deal with daily crises, breakdowns and bad weather. A collision in Massachusetts in 1841 led to a call for safety reform. This led to the reorganization of railroads into different departments with clear lines of management authority. When the telegraph became available, companies built telegraph lines along the railroads to keep track of trains.

Railroads involved complex operations and employed extremely large amounts of capital and ran a more complicated business compared to anything previous. Consequently, they needed better ways to track costs. For example, to calculate rates they needed to know the cost of a ton-mile of freight. They also needed to keep track of cars, which could go missing for months at a time. This led to what was called "railroad accounting", which was later adopted by steel and other industries, and eventually became modern accounting.

Workers on the first moving assembly line put together magnetos and flywheels for 1913 Ford autos in Michigan.

Later in the Second Industrial Revolution,Frederick Winslow Taylorand others in America developed the concept ofscientific managementorTaylorism.Scientific management initially concentrated on reducing the steps taken in performing work (such as bricklaying or shoveling) by using analysis such astime-and-motion studies,but the concepts evolved into fields such asindustrial engineering,manufacturing engineering,andbusiness managementthat helped to completely restructurethe operations of factories, and later entire segments of the economy.

Taylor's core principles included:

• replacing rule-of-thumb work methods with methods based on a scientific study of the tasks
• scientifically selecting, training, and developing each employee rather than passively leaving them to train themselves
• providing "detailed instruction and supervision of each worker in the performance of that worker's discrete task"
• dividing work nearly equally between managers and workers, such that the managers apply scientific-management principles to planning the work and the workers actually perform the tasks

Socio-economic impacts

TheGDPof the European powers experienced a significant growth during the Second Industrial Revolution.

The period from 1870 to 1890 saw the greatest increase in economic growth in such a short period as ever in previous history. Living standards improved significantly in the newly industrialized countries as the prices of goods fell dramatically due to the increases inproductivity.This caused unemployment and great upheavals in commerce and industry, with many laborers being displaced by machines and many factories, ships and other forms of fixed capital becoming obsolete in a very short time span.

"The economic changes that have occurred during the last quarter of a century -or during the present generation of living men- have unquestionably been more important and more varied than during any period of the world's history".

Crop failures no longer resulted in starvation in areas connected to large markets through transport infrastructure.

Massive improvements in public health and sanitation resulted frompublic healthinitiatives, such as the construction of theLondon sewerage systemin the 1860s and the passage of laws that regulated filtered water supplies—(theMetropolis Water Actintroduced regulation of the water supply companies in London, including minimum standards of water quality for the first time in 1852). This greatly reduced the infection and death rates from many diseases.

By 1870 the work done by steam engines exceeded that done by animal and human power. Horses and mules remained important in agriculture until the development of the internal combustion tractor near the end of the Second Industrial Revolution.

Improvements in steam efficiency, liketriple-expansion steam engines,allowed ships to carry much more freight than coal, resulting in greatly increased volumes of international trade. Higher steam engine efficiency caused the number of steam engines to increase several fold, leading to an increase in coal usage, the phenomenon being called theJevons paradox.

By 1890 there was an international telegraph network allowing orders to be placed by merchants in England or the US to suppliers in India and China for goods to be transported in efficient new steamships. This, plus the opening of theSuez Canal,led to the decline of the great warehousing districts in London and elsewhere, and the elimination of many middlemen.

The tremendous growth in productivity, transportation networks, industrial production and agricultural output lowered the prices of almost all goods. This led to many business failures and periods that were calleddepressionsthat occurred as the world economy actually grew.See also:Long depression

The factory system centralized production in separate buildings funded and directed by specialists (as opposed to work at home). The division of labor made both unskilled and skilled labor more productive, and led to a rapid growth of population in industrial centers. The shift away from agriculture toward industry had occurred in Britain by the 1730s, when the percentage of the working population engaged in agriculture fell below 50%, a development that would only happen elsewhere (theLow Countries) in the 1830s and '40s. By 1890, the figure had fallen to under 10% and the vast majority of the British population was urbanized. This milestone was reached by theLow Countriesand the US in the 1950s.

Like the first industrial revolution, the second supported population growth and saw most governments protect their national economies with tariffs. Britain retained its belief infree tradethroughout this period. The wide-ranging social impact of both revolutions included the remaking of the working class as new technologies appeared. The changes resulted in the creation of a larger, increasingly professional, middle class, the decline of child labor and the dramatic growth of a consumer-based, material culture.

By 1900, the leaders in industrial production was Britain with 24% of the world total, followed by the US (19%), Germany (13%), Russia (9%) and France (7%). Europe together accounted for 62%.

The great inventions and innovations of the Second Industrial Revolution are part of our modern life. They continued to be drivers of the economy until after WWII. Major innovations occurred in the post-war era, some of which are: computers, semiconductors, the fiber optic network and the Internet, cellular telephones,combustion turbines(jet engines) and theGreen Revolution.Although commercial aviation existed before WWII, it became a major industry after the war.

United Kingdom

Relative per capita levels of industrialization between 1750 and 1910 relative to Great Britain in 1900 = 100)

New products and services were introduced which greatly increased international trade.Improvements insteam enginedesign and the wide availability of cheap steel meant that slow, sailing ships were replaced with faster steamship, which could handle more trade with smaller crews. Thechemicalindustries also moved to the forefront. Britain invested less in technological research than the U.S. and Germany, which caught up.

The development of more intricate and efficient machines along withmass productiontechniques after 1910 greatly expanded output and lowered production costs. As a result, production often exceeded domestic demand.Among the new conditions, more markedly evident in Britain, the forerunner of Europe's industrial states, were the long-term effects of the severeLong Depressionof 1873–1896, which had followed fifteen years of great economic instability. Businesses in practically every industry suffered from lengthy periods of low – and falling – profit rates and price deflation after 1873.

United States

The U.S. had its highest economic growth rate in the last two decades of the Second Industrial Revolution;however, population growth slowed while productivity growth peaked around the mid 20th century. TheGilded Agein America was based on heavy industry such as factories, railroads and coal mining. The iconic event was the opening of theFirst transcontinental railroadin 1869, providing six-day service between the East Coast and San Francisco.

During the Gilded Age, American railroad mileage tripled between 1860 and 1880, and tripled again by 1920, opening new areas to commercial farming, creating a truly national marketplace and inspiring a boom in coal mining and steel production. The voracious appetite for capital of the great trunk railroads facilitated the consolidation of the nation's financial market inWall Street.By 1900, the process of economic concentration had extended into most branches of industry—a few large corporations, some organized as "trusts" (e.g. Standard Oil), dominated in steel, oil, sugar, meatpacking, and the manufacture of agriculture machinery. Other major components of this infrastructure were the new methods for manufacturing steel, especially theBessemer process.The first billion-dollar corporation wasUnited States Steel,formed by financierJ. P. Morganin 1901, who purchased and consolidated steel firms built byAndrew Carnegieand others.

Increased mechanization of industry and improvements to worker efficiency, increased the productivity of factories while undercutting the need for skilled labor. Mechanical innovations such as batch and continuous processing began to become much more prominent in factories. This mechanization made some factories an assemblage of unskilled laborers performing simple and repetitive tasks under the direction of skilled foremen and engineers. In some cases, the advancement of such mechanization substituted for low-skilled workers altogether. Both the number of unskilled and skilled workers increased, as their wage rates grewEngineering colleges were established to feed the enormous demand for expertise. Together with rapid growth of small business, a new middle class was rapidly growing, especially in northern cities.

Germany

TheGerman Empirecame to rival Britain as Europe's primary industrial nation during this period. Since Germany industrialized later, it was able to model its factories after those of Britain, thus making more efficient use of its capital and avoiding legacy methods in its leap to the envelope of technology. Germany invested more heavily than the British in research, especially in chemistry, motors and electricity. The Germanconcernsystem (known asKonzerne), being significantly concentrated, was able to make more efficient use of capital. Germany was not weighted down with an expensive worldwide empire that needed defense. Following Germany's annexation ofAlsace-Lorrainein 1871, it absorbed parts of what had been France's industrial base.

By 1900 the German chemical industry dominated the world market forsynthetic dyes.The three major firmsBASF,BayerandHoechstproduced several hundred different dyes, along with the five smaller firms. In 1913 these eight firms produced almost 90 percent of the world supply of dyestuffs, and sold about 80 percent of their production abroad. The three major firms had also integrated upstream into the production of essential raw materials and they began to expand into other areas of chemistry such aspharmaceuticals,photographic film,agricultural chemicalsandelectrochemical.Top-level decision-making was in the hands of professional salaried managers, leading Chandler to call the German dye companies "the world's first truly managerial industrial enterprises".There were many spin offs from research—such as the pharmaceutical industry, which emerged from chemical research.

Belgium

Belgiumduring theBelle Époqueshowed the value of therailwaysfor speeding the Second Industrial Revolution. After 1830, when itbroke away from the Netherlandsand became a new nation, it decided to stimulate industry. It planned and funded a simple cruciform system that connected major cities, ports and mining areas, and linked to neighboring countries. Belgium thus became the railway center of the region.The systemwas soundly built along British lines, so that profits were low but the infrastructure necessary for rapid industrial growth was put in place.

Alternative uses

There have been other times that have been called "second industrial revolution". Industrial revolutions may be renumbered by taking earlier developments, such as the rise ofmedieval technologyin the 12th century,or of ancient Chinese technology during theTang dynasty,or ofancient Roman technology,as first. "Second industrial revolution" has been used in the popular press and by technologists or industrialists to refer to the changes following the spread of new technology afterWorld War I.

Excitement and debate over the dangers and benefits of theAtomic Agewere more intense and lasting than those over theSpace agebut both were predicted to lead to another industrial revolution. At the start of the 21st century the term "second industrial revolution" has been used to describe the anticipated effects of hypotheticalmolecular nanotechnologysystems upon society.In this more recent scenario, they would render the majority of today's modern manufacturing processes obsolete, transforming all facets of the modern economy. Subsequent industrial revolutions include theDigital revolutionandEnvironmental revolution.

See also

in Alpha betical order

• British Agricultural Revolution
• Capitalism in the nineteenth century
• Chemical Revolution
• Digital Revolution,also known as the Third Industrial Revolution, late 1990s until present
• Fourth Industrial Revolution
• Green Revolution
• Industrial Revolution
• Information Revolution
• Transport Revolution
• Nanotechnology
• Kondratiev wave
• List of steel producers
• Machine Age
• Neolithic Revolution
• Productivity improving technologies (historical)
• Scientific Revolution
• Suez Canal

Economic history of selected countries:

• United Kingdom (19th century)&1900–1945
• United States (late 19th century)&Early 20th century
• France (1789–1914)&1914–1944
• Economic history of Germany#Industrial Revolution&Early 20th century
• Italy (1861–1918)
• Japan (Meiji period)&Early 20th century

References

• Atkeson, Andrew and Patrick J. Kehoe. "Modeling the Transition to a New Economy: Lessons from Two Technological Revolutions,"American Economic Review,March 2007, Vol. 97 Issue 1, pp 64–88 inEBSCO
• Appleby, Joyce Oldham.The Relentless Revolution: A History of Capitalism(2010)excerpt and text search
• Beaudreau, Bernard C.The Economic Consequences of Mr. Keynes: How the Second Industrial Revolution Passed Great Britain(2006)
• Bernal, J. D.(1970) [1953].Science and Industry in the Nineteenth Century.Bloomington: Indiana University Press.ISBN0-253-20128-4.
• Broadberry, Stephen, and Kevin H. O'Rourke.The Cambridge Economic History of Modern Europe(2 vol. 2010), covers 1700 to present
• Chandler, Jr., Alfred D.Scale and Scope: The Dynamics of Industrial Capitalism(1990).
• Chant, Colin, ed.Science, Technology and Everyday Life, 1870–1950(1989) emphasis on Britain
• Hobsbawm, E. J.(1999).Industry and Empire: From 1750 to the Present Day.rev. and updated with Chris Wrigley (2nd ed.). New York: New Press.ISBN1-56584-561-7.
• Hull, James O. "From Rostow to Chandler to You: How revolutionary was the second industrial revolution?"Journal of European Economic History,Spring 1996, Vol. 25 Issue 1, pp. 191–208
• Hunter, Louis C.; Bryant, Lynwood (1991).A History of Industrial Power in the United States, 1730–1930, Vol. 3: The Transmission of Power.Cambridge, MA: MIT Press.ISBN978-0262081986.
• Kornblith, Gary.The Industrial Revolution in America(1997)
• Kranzberg, Melvin;Carroll W. Pursell Jr (1967).Technology in Western Civilization(2 vols. ed.). New York: Oxford University Press.
• Landes, David(2003).The Unbound Prometheus: Technical Change and Industrial Development in Western Europe from 1750 to the Present(2nd ed.). New York: Cambridge University Press.ISBN0-521-53402-X.
• Licht, Walter.Industrializing America: The Nineteenth Century(1995)
• Mokyr, JoelThe Second Industrial Revolution, 1870–1914(1998)
• Mokyr, Joel.The Enlightened Economy: An Economic History of Britain 1700–1850(2010)
• Rider, Christine, ed.Encyclopedia of the Age of the Industrial Revolution, 1700–1920(2 vol. 2007)
• Roberts, Wayne. "Toronto Metal Workers and the Second Industrial Revolution, 1889–1914,"Labour / Le Travail,Autumn 1980, Vol. 6, pp 49–72
• Roe, Joseph Wickham (1916).English and American Tool Builders.New Haven, Connecticut: Yale University Press.LCCN16011753..Reprinted by McGraw-Hill, New York and London, 1926 (LCCN27-24075); and by Lindsay Publications, Inc., Bradley, Illinois, (ISBN978-0917914737).
• Smil, Vaclav.Creating the Twentieth Century: Technical Innovations of 1867–1914 and Their Lasting Impact
• White, Richard C. (2017).The Republic for Which It Stands.Oxford University Press.

External links

• Media related toIndustrial revolutionat Wikimedia Commons