Done By: Shamma Al-Hitmi 6D Escalator Done By: Shamma Al-Hitmi 6D

Introduction In this project, we had to choose an invention or innovation and show what problem it solved and the new problems it created. I choose an escalator, an escalator is what humans created to make life easier. What you do is stand on a stair and the stair takes you to another floor.

Problem The problem was to get people from one floor to another more quickly. Before escalators, people had to do something to get to another floor, they got tired.

How it Works What people can see is that there are stairs moving up or down the escalator. What people can’t see is that there are 2 wheels, one on each floor, that move the stairs like the tracks of a tank.

Positives and Negatives Its faster Easier (than an elevator) It can get a lot of people at a time. Humans do not have to get tired by walking up and down the stairs to get to another floor. Use it without any effort. Can cause major injuries. Can’t use it with trolleys or buggies. Lack of exercise for people, making them lazy. May cause obesity.

Extras The inventor of the escalator, Nathan Ames, designed it in 1859, but he died in 1860 before having a chance to build it properly. So another inventor, Jesse W. Reno, designed the escalator in 1892 and it was used as a fun ride like a roller coaster in Old Iron Pier in Coney Island.

What’s Next? Improvements to the escalator:- Making a multi level escalator. Making the escalator go around corners. Making the stair bigger for safety. Making the stairs wider to carry more people. Making each stair big enough to carry a buggy/trolley. Making the handrail the same speed as the stairs.

Conclusion Escalators are a fantastic invention because there are more people using them safely than getting injured. Using escalators means, you have more energy to carry bigger bags for a longer time making your shopping trip even more AMAZING!

Sources http://science.howstuffworks.com/transpo rt/engines-equipment/escalator1.htm http://www.ideafinder.com/history/inventi ons/escalator.htm

Pictures http://www.blogginghigh.com/blog/?tag=w eed-jokes&paged=2 http://maxtechsouthernelevator.com/ http://www.clker.com/clipart-6364.html http://www.altham.com/html/child_safety_ cartoons.html http://www.cwu.edu/~ccc/noteworthy_ne ws.html