Technology in American
Technology in American
Early 19th Century Eli Whitney-invention of the cotton gin John H.Hall-American system of production Cyrus H.McCormick-invention of mechanical reaper The Stevens Family -improving railroads and transportation Samuel F.B.Morse -invention of telegraph code Alexander Graham Bell -invention of telephone
Early 19th Century • Eli Whitney – invention of the cotton gin • John H. Hall – American system of production • Cyrus H. McCormick – invention of mechanical reaper • The Stevens Family – improving railroads and transportation • Samuel F.B. Morse – invention of telegraph code • Alexander Graham Bell – invention of telephone
The cotton gin is a machine designed to remove cotton from its seeds.The process uses a small screen and pulling hooks to force the cotton through the screen.It was invented by Eli Whitney on March 14, 1794,one of the many inventions that occurred during the American Industrial Revolution.However,earlier versions of the cotton gin had existed Eli Whitney since the first century.It was improved over time from a single roller design to a double roller machine. In 1798,Eli Whitney invented a way to manufacture muskets by machine so that the parts were interchangeable
The cotton gin is a machine designed to remove cotton from its seeds. The process uses a small screen and pulling hooks to force the cotton through the screen. It was invented by Eli Whitney on March 14, 1794, one of the many inventions that occurred during the American Industrial Revolution. However, earlier versions of the cotton gin had existed since the first century. It was improved over time from a single roller design to a double roller machine. In 1798, Eli Whitney invented a way to manufacture muskets by machine so that the parts were interchangeable Eli Whitney
1807 Regular Steamboat service on the Hudson River Robert Fulton was born in Lancaster County,Pennsylvania,on November 14, 1765.His early education was limited, but he displayed considerable artistic talent and inventiveness.His lifelong interest in scientific and engineering developments,especially in the application of steam engines. On August 17,1807,the Clermont, Robert Fulton's first American steamboat,left New York for Albany, inaugurating the first commercial steamboat service in the world
1807 Regular Steamboat service on the Hudson River Robert Fulton Robert Fulton was born in Lancaster County, Pennsylvania, on November 14, 1765. His early education was limited, but he displayed considerable artistic talent and inventiveness. His lifelong interest in scientific and engineering developments, especially in the application of steam engines. On August 17, 1807, the Clermont, Robert Fulton's first American steamboat, left New York for Albany, inaugurating the first commercial steamboat service in the world
The second Industrial Revolution. ·1836 Telegraph 。 Samuel Morse was born in 1791, in Charlestown,Massachusetts His father was a Congregational minister and a scholar of high standing,who was able to send his three sons to Yale College. Samuel attended Yale at the age of fourteen and was taught by Benjamin Silliman,Professor of Chemistry,and Jeremiah Day, Professor of Natural Philosophy, later President of Yale College whose teaching gave Samuel the education which in later years led to the invention of the telegraph
The second Industrial Revolution. • 1836 Telegraph • Samuel Morse was born in 1791, in Charlestown, Massachusetts. His father was a Congregational minister and a scholar of high standing, who was able to send his three sons to Yale College. Samuel attended Yale at the age of fourteen and was taught by Benjamin Silliman, Professor of Chemistry, and Jeremiah Day, Professor of Natural Philosophy, later President of Yale College, whose teaching gave Samuel the education which in later years led to the invention of the telegraph
1844 Sewing Machine Elias Howe was the inventor of the first American-patented sewing machine. ·Elias Howe was born in Spencer,Massachusetts on July 9,1819.After he lost his factory job in the Panic of 1837,Howe moved from Spencer to Boston,where he found work in a machinist's shop.It was there that Elias Howe began tinkering with the idea of inventing a mechanical sewing machine
1844 Sewing Machine • Elias Howe was the inventor of the first American-patented sewing machine. • Elias Howe was born in Spencer, Massachusetts on July 9, 1819. After he lost his factory job in the Panic of 1837, Howe moved from Spencer to Boston, where he found work in a machinist's shop. It was there that Elias Howe began tinkering with the idea of inventing a mechanical sewing machine
1876 Telephone ● Born on March 3,1847,in Edinburgh,Scotland,Alexander Graham Bell was the son and grandson of authorities in elocution and the correction of speech. Educated to pursue a career in the same specialty,his knowledge of the nature of sound led him not only to teach the deaf,but also to invent the telephone. Bell's greatest success was achieved on March 10,1876-The first successful telephone Alexander Graham Bell transmission of clear speech using a liquid transmitter when Bell spoke into his device,"Mr.Watson,come here,I want to see you.and Watson heard each word distinctly
1876 Telephone • Born on March 3, 1847, in Edinburgh, Scotland, Alexander Graham Bell was the son and grandson of authorities in elocution and the correction of speech. Educated to pursue a career in the same specialty, his knowledge of the nature of sound led him not only to teach the deaf, but also to invent the telephone. • Bell's greatest success was achieved on March 10, 1876— The first successful telephone transmission of clear speech using a liquid transmitter when Bell spoke into his device, “Mr. Watson, come here, I want to see you.” and Watson heard each word distinctly. Alexander Graham Bell
Alexander Graham Bell with a prototype(雏形)telephone,1876.The single-port design required the user to alternately speak into and then listen through the same hole. A■S TWOPEN AU.S dial telephone hand style telephone拨号电话 candlestick 手摇式电话 telephone in use,circa 1915
Alexander Graham Bell with a prototype (雏形)telephone, 1876. The single-port design required the user to alternately speak into and then listen through the same hole. • hand style telephone 手摇式电话 dial telephone 拨号电话 A U.S. candlestick telephone in use, circa 1915
World's first handheld phone call in public Cooper is considered the inventor of the first handheld cellular phone and the first person to make a call on a handheld cell phone prototype on April 3,1973,in front of reporters and passers-by on a New York City street.Cooper later revealed that watching Captain Kirk using his communicator on the television show Star Trek inspired him to develop the handheld mobile phone Martin copper
World's first handheld phone call in public Cooper is considered the inventor of the first handheld cellular phone and the first person to make a call on a handheld cell phone prototype on April 3, 1973, in front of reporters and passers-by on a New York City street. Cooper later revealed that watching Captain Kirk using his communicator on the television show Star Trek inspired him to develop the handheld mobile phone Martin copper
Modern mobile phone In addition to the standard voice function, current mobile phones may support many additional services,and accessories,such as SMS for text messaging,email,packet switching for access to the Internet, gaming,Bluetooth,infrared,camera with video recorder and MMS for sending and receiving photos and video,MP3 player, radio and GPS. C执森PPT
Modern mobile phone • In addition to the standard voice function, current mobile phones may support many additional services, and accessories, such as SMS for text messaging, email, packet switching for access to the Internet, gaming, Bluetooth, infrared, camera with video recorder and MMS for sending and receiving photos and video, MP3 player, radio and GPS