이 페이지는 Youtop이 운영하는 독립 디렉터리 페이지입니다. CrashCourse 또는 YouTube가 운영, 후원, 보증하지 않습니다. 수정 제안하기. 이 크리에이터 본인이신가요? 페이지 소유 신청
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이 페이지는 Youtop이 운영하는 독립 디렉터리 페이지입니다. CrashCourse 또는 YouTube가 운영, 후원, 보증하지 않습니다. 수정 제안하기. 이 크리에이터 본인이신가요? 페이지 소유 신청
CrashCourse · 2014년 11월 1일 게시
In which John Green teaches you about railroads and some of the ways they changed the world, and how they were a sort of microcosm for the Industrial Revolution as a whole. Prior to the invention of steam-powered railroads, pretty much all locomotion had been muscle-powered. You either walked where you wanted to go or rode on an animal to get where you were going. The railroad changed human perception of time and space, making long-distance travel much faster and easier. Railroads also changed habits, including increasing reading. People needed some sort of distraction to ensure they didn't have to talk to other people on the train. Like any new technology, railroads also scared people. All kinds of fears surrounded rail travel, but over time, people got over them. And the quality of boiler manufacturing improved, so the trains exploded less often, which also made people feel safer. Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Instagram - https://www.instagram.com/thecrashcourse/ CC Kids: http://www.youtube.com/crashcoursekids
