CNN CNN Newsroom April 13, 2013 15:24:00
"earthquake" and an elevator plunges and yet that almost never happens in real life because 160 years ago a man just outside of new york drew this diagram on a scrap of paper. a simple idea for a simple invention. his name was elijah otis and pedro knows all about him. >> what he invented is a device was one which when the rope broke the platform remained in position and remained safe. that opened up vertical transportation safely for people and enabled tall buildings. >> reporter: indeed the elevator's safety brake opened the heavens for architects in rapidly growing cities. >> buildings shot...