Science and urban life (late 1800’s to early 1900’s) Name two technology advances that helped make cities more livable? • Technology such as elevated trains, sky scrapers invention of elevators and steel. • Elevated or el trains and sky scrapers, help save a lot space. Name two inventions that helped change the world of communications? • Kept areas from getting congested, advances in printing, mill produce cheap paper, high speed printing presses were available making newspapers and magazines more affordable. Key terms • • • • • Louis Sullivan-was the skyscraper architect Wright brothers-they build the first airplane Daniel Burnham-design the flat iron building George Eastman-invented the kodak camera Frederick Law Olmsted-a journalist and farmer, he lead the movement for plan city parks.