2016년 11월 24일 목요일

Invention changes your life



Invention changes your life

20134837 Jungwoon Jang

 

            Do you know how many floors Soojung building has? It consists of 10 stories. When the time for class comes near, elevators are overcrowded with students. Some students fail to enter the elevator and cannot help using stairs. If human did not create elevator, many people would face uncomfortable situations. The present elevator that conveys people safely was made by Elisha Graves Otis(1811~1861). Through the history of elevator, how it invented will be introduce.

            Before Otis, there were many attempts to make luggage and people lift. The first trial was done by Archimedes in B.C236. He made an elevator in primitive form, using ropes and pulleys. In modern age, the study of elevator began in earnest. Many people tried to make elevator, however, there was a safety problem. Sometimes, the ropes were cut and people fall off the elevator. Even though elevator was convenient, many people worried about accidents.

            One man, Otis, worked in a company that made the frame of bed not drop off to the ground. After he resigned the company, he made his own elevator company. He kept studying how to make elevator safe. In 1854, he showed what he made at the international exposition. He let his attendant cut the rope when he was on the elevator. But he did not fall down to the floor. Many people who saw that were shocked. After that, people started to adapt Otis’s elevator to their buildings.

            In April 1931, Empire State building that is 381 meters and has 102 floors held ceremony for completion in New York. It adapted 67 elevators made by Otis’s company. If Otis did not invent the safe elevator, we could not imagine we go up to the high building. Also, we could not imagine people build the skyscrapers. Nowadays, there are many other companies making elevator. Also, most of buildings have elevators.

            Other inventions such as car, computer and smart phone are a part of people’s life. At present, people think elevator is nothing special. However, this is an innovation. Unless inventing elevator, people would be inconvenient very much. Furthermore, Unless Otis’s effort, people could not live this comfortable life. When people utilize many creative and innovative inventions, they should thank inventors for their endeavor.    

댓글 없음:

댓글 쓰기