A Technological Revolution Patent • Licenses that give an inventor the exclusive rights to make, use, or sell an invention for a set period of time How did the system of patents encourage innovation and investment • By giving inventors and investors How did inventions such as the light bulb and the telegraph change daily life in the late 1800s? • Extended usable hours of the day Productivity • The amount of goods and services created in a given period of time Why did the nation’s industrial productivity rise in the late 1800s? • Due to new technology, Edwin L. Drake • Began drilling for oil in Western PA using a steam powered drill Why did the oil business change after Drake found oil in PA? • Using Drake’s method, it was less expensive, less time consuming, and easier to obtain large amounts of oil Transcontinental Railroad • A railway extending from the east coast to the west coast What were the advantages of building the transcontinental railroad? • Reduced cost and increased efficiency of transportation Problems with trains • Their size sometimes scared people Bessemer Process • Made it easier and cheaper to What innovations did the Bessemer Process encourage? • Mass production of steel Mass Production • Production in great amounts