CH 8-1 Text - Fulton Independent School
Transcription
CH 8-1 Text - Fulton Independent School
SECTION 1 Advances in Technology BEFORE YOU READ MAIN IDEA READING FOCUS KEY TERMS AND PEOPLE The technological breakthroughs of the Industrial Age included advances in electric power, transportation, and communication. 1. How did electric power affect industry and daily life? Michael Faraday Thomas Edison Bessemer process Henry Ford Wilbur and Orville Wright telegraph Samuel Morse Alexander Graham Bell Guglielmo Marconi 2. What advances in transportation occurred during the Industrial Age? 3. What were the advances in communication, and how were they achieved? Getting Started Use a graphic organizer like the one below to take notes on key technological advances of the Industrial Age. 5SETHEInteractive Reader and Study Guide TOFAMILIARIZESTUDENTSWITHTHESECTION CONTENT Interactive Reader and Study Guide, Section 1 Name _____________________________ Class _________________ Date __________________ Life in the Industrial Age Section 1 Technological Advances MAIN IDEA The technological breakthroughs of the Industrial Age included advances in electric power, transportation, and communication. Key Terms and People Michael Faraday English chemist who invented the dynamo Thomas Edison developer of the first usable and practical light bulb; invented phonograph What new technology wowed the world in 1900? As visitors approached the gates to the Paris Exhibition of 1900, they wondered what was lighting up the night sky so brilliantly. Many had heard about a new technology that was a great improvement over the oil and gas lighting they currently used in their homes. But what they saw was amazing—a spectacular display of electricity as 5,000 multicolored lights lit up an enormous steel and glass building. None of the 50 million people who visited the exhibition had ever before seen such a spectacle of electric power. Few could imagine how electricity would transform their lives. LIGHTS FANTASTIC Bessemer process steel-making process which made steel both stronger and cheaper Henry Ford developer of mass-production factory methods; produced affordable Model T cars Wilbur and Orville Wright brothers who were the first people to succeed in flying a powered airplane in sustained flight Samuel Morse inventor of the telegraph and the code used to send telegraph messages telegraph a machine that sends messages instantly over wires with electricity Alexander Graham Bell inventor of the telephone Guglielmo Marconi developer of the wireless telegraph, or radio Taking Notes As you read, take notes on key technological advances of the Industrial Age. Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Full Survey Chapter 22 257 Interactive Reader and Study Guide CRF: Vocabulary Builder: Section 1 In 1900, lights of the Palace of Electricity turned part of Paris into a fantasy land. Taking Notes Palais de Electricité, artist unknown, c. 1900 Technological Advances—lightbulb; steam-powered trains; Bessemer process; steamships; automobile; airplane; telegraph; telephone; radio and phonograph go.hrw.com Online Resources KEYWORD: SHL LIF ACTIVITY: The Inventions of Thomas Edison 261 Teach the Main Idea At Level Advances in Technology 1. Teach !SKSTUDENTSTHE2EADING&OCUS QUESTIONSTOTEACHTHISSECTION 2. Apply (AVESTUDENTSMAKEACHARTWITH THEFOLLOWINGHEADINGS%LECTRIC0OWER 4RANSPORTATION#OMMUNICATION5NDEREACH HEADINGHAVESTUDENTSLISTTHEIMPORTANT THCENTURYDEVELOPMENTSINTHATAREA 3. Review 2EVIEWSTUDENTCHARTSASACLASS 4HENHAVESTUDENTSIDENTIFYTHEONECHANGE UNDEREACHHEADINGTHATTHEYBELIEVEWASTHE MOSTIMPORTANT 4. Practice/Homework (AVESTUDENTSWRITE EDITORIALSFROMTHEPOINTOFVIEWOFATH CENTURYEDITOR4HEYSHOULDTRYTOCONVINCE THEPUBLICTHATTHEFEDERALGOVERNMENT SHOULDHELPFUNDATRANSCONTINENTALRAILROAD SYSTEM3TUDENTEDITORIALSSHOULDDESCRIBE THEBENElTSOFSUCHASYSTEMANDEXPLAIN WHYITWILLBEWORTHTHEMONEYTOBUILDIT Visual-Spatial, Verbal-Linguistic Alternative Assessment Handbook, Rubrics 7: Charts; and 43: Writing to Persuade LIFE IN THE INDUSTRIAL AGE 261 Electric Power Before the late 1880s water, coal, and steam had powered industry. As the Industrial Age progressed, though, inventors and scientists were inspired to develop new technologies. One technology drastically changed industry and daily life more than any other—electricity. Reading Focus How did electric power affect industry and daily life? drastically changed them; industry—factories no longer relied on steam engines powered by waterways, work day could extend past sunset; daily life—provided cheaper, convenient light source, led to other inventions Early Attempts at Electric Power For many centuries, scientists had known of and been interested in electricity. During the 1700s Benjamin Franklin and other scientists had performed important experiments. Still, no one had developed a way to harness electricity and put it to use. In 1831, however, English chemist Michael Faraday discovered the connection between magnetism and electricity. His discovery led to the dynamo, a machine that generated electricity by moving a magnet through a coil of copper wire. Faraday used the electricity to power an electric motor, and his discoveries led to the development of electrical generators. During the 1800s other scientists also created devices that used electric power. For instance, in 1860 British chemist Joseph Swan developed a primitive electric lightbulb that gave off light by passing heat through a small strip of paper. However, Swan’s lightbulb did not shine for very long, and its light was too dim. Swan’s work was a beginning, but it was nearly 40 more years before the invention of a usable lightbulb. Electric Power Define 7HATISADYNAMOa machine that generates electricity by moving a magnet through a coil of copper wire Make Generalizations 7HYDID INVENTORSANDSCIENTISTSWANTTODEVELOP NEWPOWERSOURCESINTHES Water, coal, and steam were not very efficient sources of power. 2ECENT3CHOLARSHIP Light! The Industrial Age 1750– 1900, Art & Science, Technology & ScienceEXAMINESHOW THEELECTRICLIGHTBULBCHANGED THEWAYPEOPLELIVEWORKAND SHOP)TALSODESCRIBESHOWLIGHT INmUENCEDOTHERINVENTIONS INCLUDINGMICROSCOPESAND CAMERAS4HEBOOKIDENTIlES HOWTHEUSEOFLIGHTLEDTODRA MATICCHANGESINPAINTINGWITH EMPHASISONTHE2OMANTICSAND THE)MPRESSIONISTS Light! The Industrial Age 1750– 1900, Art & Science, Technology & ScienceBY!NDREAS"LUHM AND,OUISE,IPPINCOTT4HAMES (UDSON FACES OF HISTORY Thomas Edison, one of the world’s most brilliant inventors, came from a humble background. He had only a 1847–1931 few months of formal schooling. After working as a newsboy, Edison became a telegraph operator, where he got involved in electronic communication. In fact, improvements in the telegraph system were among his first inventions. Eventually, Edison held more than 1,090 patents for new inventions. His goal was to make things that could succeed on the market and, by doing so, prove their usefulness. He also believed in hard work, as he explained in this famous quote. “Genius is one percent inspiration and ninety-nine percent perspiration.” Draw Conclusions Do you think Edison saw himself as a genius? Why or why not? Thomas EDISON 262 Edison’s Lightbulb Based on the work of Faraday and Swan, Thomas Edison developed the first usable and practical lightbulb in 1879. The new invention caused a sensation. HISTORY’S VOICES electric light, incredible as it may appear, “isEdison’s produced from a tiny strip of paper that a breath would blow away. Through this little strip of paper is passed an electric current, and the result is a bright, beautiful light . . . and this light, the inventor claims, can be produced cheaper than that from the cheapest oil. ” —Marshall Fox, New York Herald, 1879 This invention did not come easily, even to Edison. Instead, it came through trial and error and many hours of work in his laboratory in Menlo Park, New Jersey. As Edison’s research became known, young people who shared his passion for inventing flocked to his lab to work for him. In addition to the lightbulb, Edison and his team made generators, motors, light sockets, and other electrical devices. Edison also played a major role in the development of city electrical utility systems. He built the world’s first central electric power plant in New York City. The plant produced enough power to light several city blocks. As a result of Edison’s work, many aspects of life became easier. Effects on Industry and Daily Life The wide availability of electric power transformed industry in both the United States and Europe. Electric power improved industry in three significant ways. First, by using electric power, factories no longer had to rely on large steam engines to power machines. Second, factories did not have to depend on waterways to power the steam engines. Third, factory production increased as factories became less dependent on sunlight. With electric lighting in factories, workers could stay on the job late into the night. In addition to changing industry, electricity transformed daily life. Before people had electricity, they lit their homes with candles, gaslights, or oil lamps. Electricity provided a cheaper, more convenient light source. Inventors soon created other electrical devices that made daily life more convenient. Analyze How did electricity change industry and daily life? CHAPTER 8 Skills Focus: Identifying Problem and Solution Level At Level Tag Reading Skill Edison’s Invention Factory Answers Faces of History possible answer— No, he credited hard work more than inspiration for his discoveries. Reading Check Factories no longer needed steam engines or water sources to power them; production increased; people could light their homes and businesses more safely and effectively with electric lighting. 262 DEVELOPSKETCHESANDDIAGRAMSOFTHEIR PRODUCTANDWRITEANEXPLANATIONOFHOWTHE STUDENTSTHATITISTHESANDEACHGROUPIS INVENTIONWILLWORK ARESEARCHTEAMAT4HOMAS%DISONShINVENTION FACTORYv(AVEEACHGROUPDECIDEONANEW 3.!SKVOLUNTEERSFROMEACHGROUPTOPRESENT INVENTIONTHEYWANTTOWORKON3TUDENTS THEIRINVENTIONTOTHERESTOFTHECLASS4HEREST SHOULDGETAPPROVALBEFOREPROCEEDINGWITH OFTHECLASSWILLREPRESENTPOTENTIALINVESTORS THEIRINVENTION 7HICHINVENTIONSWOULDTHEYINVESTIN 2.(AVEGROUPSWRITEAPROPOSALTHATEXPLORES Kinesthetic, Visual-Spatial THEMARKETFORTHEIRPRODUCTANDTHEFEASIBILITY Alternative Assessment Handbook, Rubrics 3: OFPRODUCINGITAFFORDABLY4HENHAVEGROUPS Artwork; and 14: Group Activity 1./RGANIZESTUDENTSINTOSMALLGROUPS4ELL Interactive U.S. RAILROADS, 1870 3BJMSPBET Reading Focus #PTUPO 1SFTFOUEBZCPVOEBSZ $IJDBHP 1IJMBEFMQIJB /FX :PSL What advances in transportation occurred during the Industrial Age? First, trains began to replace canal and river traffic. Later, automobiles began to replace carriages. In 1903, humans succeeded in flying a powered airplane. "5-"/5*$0$&"/ 4BO 'SBODJTDP ,BOTBT$JUZ U.S. RAILROADS, 1850 .JMFT ,JMPNFUFST "MCFSTFRVBMBSFBQSPKFDUJPO ¡/ ¡8 /FX0SMFBOT )PVTUPO (VMGPG.FYJDP G$B JDP 5SPQ S OD F go.hrw.com GEOGRAPHY SKILLS INTERPRETING MAPS .JMFT ,JMPNFUFST Advances in Transportation In addition to power technology, the late 1800s brought improvements in transportation. The development of efficient steam engines led to trains and steamships, while the internal combustion engine led to cars and airplanes. Steam-Powered Trains Throughout the early 1800s boats on canals and rivers provided the best means for long-distance travel. Then, with the development of efficient steam engines, trains began to replace boats. Trains could carry heavy loads, did not require waterways, and traveled faster than watercraft. By 1830 the world’s first rail line linked two major British cities, Manchester and Liverpool. By 1840 about 3,000 miles of railroad tracks crisscrossed the eastern United States. Improvements in steel production contributed to the expansion of the railroad system. A new process made steel stronger and was also cheaper and more efficient. Working separately, Englishman Henry Bessemer and American William Kelly developed the new process in Interactive Maps Keyword: SHL LIF 1. Regions Where did railroads expand rapidly? 2. Human-Environment Interaction How do you think the railroad to San Francisco affected population growth and economic development? the late 1850s. The Bessemer process involved forcing air through molten metal to burn out carbon and other impurities that make metal brittle. The process came to be named for Bessemer because he made it a financial success. Using the Bessemer process, factories increased their production of locomotives and railroad tracks. In addition, engineers used the stronger steel to build bridges that allowed the trains to cross any type of terrain. As the new steel-making process made building railroads easier, they expanded rapidly. By 1860 a 30,000-mile network of tracks linked the major American cities. West of the Mississippi River, new railroads brought people to unsettled or thinly settled areas of the country. As a result, cities in the American West grew and prospered along the tracks. Engineers also took railroad technology around the world. India’s first train ran in 1851. Just one year later, the first African railroad was built in Egypt. Construction on the world’s longest railroad, the Trans-Siberian in Russia, began in 1891. Info to Know Phonograph)NADDITION TOTHE LIGHT BULB4HOMAS%DISONINVENTEDTHE ORIGINALPHONOGRAPHORhRECORDPLAYERv ANDTHEMOTION PICTURECAMERA 263 At Level Level Tag Reading Skill Advances in Transportation 1.(AVEEACHSTUDENTCHOOSETHEONEFORMOF TRANSPORTATIONDISCUSSEDINTHISCHAPTER RAILROADSAUTOMOBILESORAIRPLANESTHAT THEYTHINKHADTHEMOSTFARREACHINGEFFECTS (AVESTUDENTSWRITEANEDITORIALTELLINGWHY THEIRCHOSENTHEFORMOFTRANSPORTATIONIS SOREVOLUTIONARY(AVESTUDENTSPREDICTTHE CHANGESTHATWILLBEBROUGHTABOUTASARESULT OFTHENEWMODEOFTRANSPORTATION Explain 7HATADVANTAGESDIDTHE "ESSEMERPROCESSHAVEOVEREARLIER STEELMAKINGPROCESSESmade steel stronger by burning out impurities; cheaper and more efficient Identify Cause and Effect (OWDID IMPROVEMENTSINTHEPRODUCTIONOFSTEEL LEADTOTHEEXPANSIONOFTHERAILROAD SYSTEMFactories were able to increase their production of locomotives and steel tracks, and engineers could build strong steel bridges. Evaluate 7HATWASTHEBIGGEST ADVANTAGETHATRAILROADSHADOVERCANALS ASAMEANSOFTRANSPORTATIONpossible answer—Railroads could easily be built anywhere. Map Transparency: U.S., 1870 LIFE IN THE INDUSTRIAL AGE Skills Focus: Making Generalizations Advances in Transportation Primary Source h!NYTHINGTHATWONTSELL)DONTWANT TOINVENT)TSSALEISPROOFOFUTILITY ANDUTILITYISSUCCESSv n4HOMAS!%DISON 2.0OLLTHECLASSTOSEEHOWMANYSTUDENTS CHOSETOWRITEABOUTEACHOFTHETHREEMODES OFTRANSPORTATION7HICHRECEIVEDTHEMOST VOTES7HICHRECEIVEDTHEFEWEST 3.(AVEVOLUNTEERSREADTHEIREDITORIALSTOTHE CLASS 4.'UIDETHECLASSINADISCUSSIONOFSTUDENT EDITORIALS Verbal-Linguistic Alternative Assessment Handbook, Rubric 43: Writing to Persuade Answers Interpreting Maps 1. in the northeast and Midwest; 2. possible answer— spurred growth, made it easier for people to move west 263 Reading Focus Advances in Transportation Summarize (OWDIDEXPANSIONOF THERAILROADBENElTTRADEMarkets for goods increased, travel time decreased, and new products became available. Predict(OWWILL(ENRY&ORDS hMOTORCARFORTHEGREATMULTITUDEv CHANGELIFEINTHE5NITED3TATES Affordable cars will give Americans freedom to travel anywhere at any time. Modern Transportation (AVESTUDENTSSKETCHMODERNDAYVER SIONSOFEACHMODEOFTRANSPORTATION SHOWNINTHETRANSPORTATIONFEATURE (OWARETHEYSIMILAR(OWARETHEY DIFFERENT Visual-Spatial CRF: Biography: Granville Woods Info to Know The auto industry continues its technological innovations. For example, in 2002 the Ford Motor Company began production of a car that runs on fuel cells powered by hydrogen. Water is the only emission. Steamships Just as trains revolutionized land transportation, steamships changed ocean travel. Sailing ships depended on wind for power, but steamships could travel through any kind of weather. In 1849 regular U.S. steamship service began, traveling from the west coast, around South America, to the east coast. Within a few years, engineers had made mechanical improvements to steamships. By 1870, longdistance movement of goods by steamship was economically viable. People also came on board. A long ocean voyage became an option for people looking for jobs or for fun. The Automobile As early as 1769, several Europeans had tried to build a form of personal transportation. For more than a century only small advances were made. Finally, German engineers Carl Benz and Gottlieb Daimler both developed practical automobiles. In 1885 Benz built a three-wheeled vehicle. A year later, Daimler put an internal combustion engine on a horse carriage. Daimler also developed the carburetor, which mixed fuel with air for proper combustion in the engine. At about the same time, several Americans developed their own automobile models. These early cars were too expensive for most buyers, but Henry Ford wanted to change that. In 1908 he announced, “I will build a motor car for the great multitude.” He did it. Using mass-production methods in modern factories, Ford built a line of affordable cars called the Model T. By 1920 the Model T made up 40 to 50 percent of U.S. automobile production. With cars, Americans gained a new freedom that allowed them to travel anywhere at any time. Road builders had to keep up. By 1915 American roads spanned more miles than rail lines. The Train at Glorieta Summit, by Roy Anderson, 1800s The rapid expansion of the railroad helped both travel and trade. As a result, markets for goods increased. Because trains could move huge loads efficiently, transportation costs declined, bringing a wide range of low-cost products to market. In addition, new products became available. Shoppers had more food choices. Perishable foods could get to market before they spoiled. For example, merchants in the United States shipped frozen beef by rail from the west to the east. New Ways to Travel New modes of transportation revolutionized travel in the 1800s and early 1900s. One of the new ways to travel was introduced by Orville and Wilbur Wright, pictured below, when they flew their airplane at Kitty Hawk, North Carolina, in 1903. Assembly Lines2ANSOM%LI/LDS FOUNDEDTHElRSTAUTOMOBILEFACTORYIN 4HE/LDS-OTOR6EHICLE#OMPANY WASALSOTHElRSTTOUSEANASSEMBLYLINE )N(ENRY&ORDBECAMETHElRST MANUFACTURERTOUSEACONVEYORBELTON ANASSEMBLYLINEMORETHANTRIPLINGPRO DUCTION!SSEMBLYLINESWITHCONVEYOR BELTSSOONBECAMETHENORM A train arriving in a New Mexico station Model T Fords in a St. Louis park in the 1920s 264 CHAPTER 8 The Wright Brothers at Kitty Hawk, N. Carolina, artist unknown, 1900s Skills Focus: Comparing and Contrasting Reading Skill The Granger Collection, New York Above Level Research Required Powering Transportation 1./RGANIZESTUDENTSINTOSMALLGROUPS(AVE THEGROUPSCONDUCTOUTSIDERESEARCHUSING RELIABLE)NTERNETORPRINTSOURCESTOlNDOUT HOWSTEAMENGINESANDINTERNALCOMBUSTION ENGINESWORK3TUDENTSSHOULDINVESTIGATETHE KINDSOFFUELSTHATCANBEUSEDTOPOWERSTEAM ENGINESANDINTERNALCOMBUSTIONENGINES 2.(AVEEACHGROUPMAKEABEFOREANDAFTER CHARTDESCRIBINGWHYINTERNALCOMBUSTION ENGINESQUICKLYREPLACEDSTEAMENGINES 264 CHAPTER 8 3.(AVEVOLUNTEERSSHARETHEINFORMATIONFROM THEIRCHARTSWITHTHEENTIRECLASS'UIDESTUDENTS INADISCUSSIONOFTHECHANGESTHATWEREMADE POSSIBLEASARESULTOFTHEINTERNALCOMBUSTION ENGINE7HATIFANYALTERNATIVESARETHERETO USINGINTERNALCOMBUSTIONENGINESPOWEREDBY FOSSILFUELS Interpersonal, Visual-Spatial Alternative Assessment Handbook, Rubrics 7: Charts; and 30: Research Linking TO Today Telephone Technology Although Alexander Graham Bell and Thomas Watson made the first telephone in 1876, improvements were gradual. Rural areas and small towns, especially, were often behind the cities in technological progress. For example, only 50 years ago many calls still required the help of a live operator. To place a call, a person picked up the receiver, and an operator said “Number, please.” The caller replied with a series of numbers. The operator made the connection, the other phone rang, and the call was completed. The first telephone operators were boys who had experience as telegraph operators. But customers complained Reading Focus that the boys were rude to them. In 1878 the telephone companies began hiring women operators. Emma Nutt, a Boston woman, was the first one hired. Today, of course, we can talk, send instant messages, surf the Internet, and take photos on our phones— without any help. What were the advances in communication, and how were they achieved? telegraph, telephone, radio; made possible by the invention of electricity; telephone and telegraph sent messages over wires, radio provided wireless communication Analyze How would your daily life be different if you did not have access to advanced telephone technology? Advances in Communication An operator connects two callers on a switchboard in about 1900. A modern cell phone ...well not quite The Airplane Advances in transportation were not limited to land and sea. People also wanted to fly. Hot air balloons made their debut in 1783 and became useful for wartime spying and aerial photography. However, balloons were at the mercy of the wind. A big step forward in controlled flight happened at Kitty Hawk, North Carolina, on December 17, 1903. On that date, American brothers Wilbur and Orville Wright succeeded in flying a powered airplane in sustained flight. Drawing from the work of earlier aviation engineers, the Wrights had spent four years developing their lightweight airplane. They used principles of aerodynamics, which is the study of how forces act on solid surfaces moving through the air. The Wrights designed a glider with specially shaped wings. To power their plane, they attached a version of the internal combustion engine. The first powered flight went only 120 feet, but the plane’s performance improved rapidly. This first flight paved the way for the use of airplanes to travel the globe, transport goods, and fight wars. Identifying Cause and Effect What effect did advances in transportation have on daily life? Advances in Communication Today, news and messages travel around the world in mere seconds by e-mail and telephone. In the early 1800s, though, news traveled much more slowly, by boat or by messenger on foot, horseback, or carriage. As a result, entrepreneurs and inventors started to look for better and faster ways to communicate. Linking to Today Telephone Technology Predict 2EMIND STUDENTS THAT CELLULAR TELEPHONE TECHNOLOGY IS RELATIVELY NEW AND CURRENTLY CHANGING (AVE STUDENTS PREDICT WHAT THE NEXT GENERATION OF CELL PHONES WILL LOOK LIKEAND WHAT THEY WILL DO The Telegraph Putting electricity to use made possible the invention of the telegraph, a machine that sent messages instantly over wires. American Samuel Morse is credited with inventing the telegraph in 1837. Morse also developed a “language,” which became known as Morse code, for sending telegraph messages. Morse code is a series of long and short signals that represent letters and numbers. These telegraph messages were transmitted as electrical pulses of different lengths. In 1844 Morse received funding from the United States government to lay 35 miles of telegraph wires between Washington, D.C., and Baltimore, Maryland. The first telegraph message Morse tapped out was, “What hath God wrought?” With this message, a new era in communication technology began. LIFE IN THE INDUSTRIAL AGE Skills Focus: Identifying Cause and Effect Advances in Communication 1.'UIDESTUDENTSINADISCUSSIONOFTHEADVANCES INCOMMUNICATIONTHATWEREMADEDURINGTHE S 2.4ELLSTUDENTSTHATITISANDTHEYARE WRITINGAMAGAZINEARTICLEABOUTTHEEFFECTSOF THETELEGRAPH(AVESTUDENTSUSETHEFOLLOWING QUESTIONSTOGUIDETHEM(OWHAVECHANGES INTHESPEEDOFCOMMUNICATIONCHANGEDLIFE 7OULDTHESECHANGESCONSTITUTEAREVOLUTION INCOMMUNICATION7HYORWHYNOT7HAT OTHERCHANGESMIGHTOCCURASTHECOUNTRYIS Recall 7HEREDIDFUNDINGFORTHE lRSTTELEGRAPHWIRESCOMEFROMthe United States government Make Inferences 7HYCOULDTHE TELEGRAPHNOTHAVEBEENINVENTED EARLIERIt relied on electricity. 265 At Level Standard English Mastery LINKEDBYTELEGRAPHWIRES7HATMIGHTHAPPEN IFTELEGRAPHWIRESSOMEDAYLINKTHE5NITED 3TATESWITH%UROPEAND%NGLANDWITH)NDIA 7HATFUTUREDEVELOPMENTSMIGHTFURTHER REVOLUTIONIZECOMMUNICATION 3.(AVESTUDENTSCHECKTHEIRARTICLESFORCORRECT SPELLINGANDGRAMMAR!SKVOLUNTEERSTOREAD THEIRARTICLESTOTHECLASS Verbal-Linguistic Alternative Assessment Handbook, Rubrics 11: Discussions; and 40: Writing to Describe Answers Linking to Today possible answers— much more complicated, harder to communicate quickly, more in-person contact Reading Check better and faster means of transportation; made it possible to get more goods to market at lower costs, increasing consumers’ choices 265 As the United States grew, the importance of the telegraph increased. By 1851 more than 50 telegraph companies were in operation in the United States. About 10 years later, telegraph wires strung on poles along established railroad tracks linked much of the country. At railroad stations, passengers could send messages, or telegrams, to friends and family. Communication between the United States and Europe also improved with the laying of a telegraph cable on the floor of the Atlantic Ocean in 1866. By 1870 telegraph wires stretched from England to India. The telegraph revolutionized more than personal communication. In many countries, businesses could keep in close contact with suppliers and markets. News traveled around the world in hours instead of weeks. Newspapers sent correspondents to the front lines of wars, from where they telegraphed back vivid reports of victories and defeats. The reading public was very impressed by these timely reports. The reports were one way in which the telegraph globalized communication. Reading Focus Advances in Communication Sequence )NWHATORDERWERETHE MAJORDEVELOPMENTSINCOMMUNICATION MADEtelegraph, telephone, radio Make Judgments 7HICHOFTHE THREEADVANCESINCOMMUNICATIONHAD THEBIGGESTIMPACT7HYpossible answer—telegraph, first to make communication instantaneous The Telephone As use of the telegraph spread around the world, inventors tried to improve on it. American Alexander Graham Bell, a teacher of hearing-impaired students, was one of the scientists working in sound technology. Bell tried to create a way to send multiple telegraph messages at the same time. Close (AVESTUDENTSSUMMARIZETHETECHNO LOGICALBREAKTHROUGHSTHATTOOKPLACE DURINGTHE)NDUSTRIAL!GE Review Online Quiz, Section 1 Assess SE Section 1 Assessment Progress Assessment: Section 1 Quiz Alternative Assessment Handbook Reteach/Intervene Interactive Reader and Study Guide, Section 1 Interactive Skills Tutor CD-ROM While working on that device, Bell made a remarkable discovery. One day in 1876 he was in one room and his assistant Thomas Watson was in another. Bell said, “Mr. Watson, come here, I want to see you!” Watson could hear Bell’s voice not just through the air but also through the device’s receiver. The telephone was born. During the 1880s demand for telephones increased. Telephone companies laid thousands of miles of phone lines across the United States. By 1900 almost 1.5 million telephones were installed in American homes and offices. The Radio and Phonograph Although the telephone revolutionized communication, the technology was limited. Wires could only stretch so far. A new wireless technology was based on theories about electromagnetic waves. In 1895 Italian physicist Guglielmo Marconi used the discoveries to build a wireless telegraph, or radio. First used as a communication method for ships, the radio was later used for entertainment and news. Entertainment options increased when Thomas Edison recorded sound with one of his many inventions. It was the phonograph, which became the record player. With these inventions, music was available to everyone. Contrast How did the telegraph differ from the telephone? go.hrw.com SECTION 1 Online Quiz ASSESSMENT Keyword: SHL LIF HP Reviewing Ideas, Terms, and People Critical Thinking 1. a. Recall What did Michael Faraday invent? 4. Identify Supporting Details Use your notes and a graphic b. Draw Conclusions What impact did electricity have on industry? c. Evaluate Assess the validity of this statement: Thomas Edison contributed to all aspects of electrical technology. 2. a. Define What is the Bessemer process? b. Explain What advantages did rail travel have over canal and river travel? c. Develop What advantages did the automobile provide? 3. a. Define What is the telegraph? b. Analyze How did advances in communication technology change the way people lived in the late 1800s? c. Evaluate Do you think the telegraph, telephone, radio, and phonograph could have had both positive and negative effects on daily life in the late 1800s? Explain your answer. 266 organizer like this one to record details that support the main idea about one type of technological advance. Write the subsection’s main idea in the center circle. 5. Narrative Write a paragraph that tells the story of one of the advances in technology during the 1800s. Include details from this section. CHAPTER 8 Section 1 Assessment Answers Answers Reading Check telegraph transmitted coded messages; telephone transmitted voice 266 1. a. the dynamo, b. Factories no longer relied on steam engines or water sources; production increased as workday lengthened. c. possible answer—valid, he created many different electrical inventions 2. a. a steel-making process that made steel stronger b. faster, not tied to waterways c. gave Americans the freedom to travel 3. a. a machine that sends messages instantly over wires with electricity b. revolutionized communication, allowing news to travel quickly c. possible answer—revolutionized communication, made life complicated 4. electric power—transformed industry and daily life; transportation—increased availability of products; people free to travel; communication—allowed news to travel quickly 5. Paragraphs should discuss the innovation’s development and impact.