By Shauqi&Hatim
The stairs are one of the oldest buildings in architectural history, they have always played a central role in the history of humanity, although it is difficult to tell exactly in wich year they were born, it is believed his appearance was by the year 6000 before Christ. The stairs seems to change shape with the change of architectural eras, reflecting the trends used in different ages and revealing the talent of those who designed them.The first stairs in the history were wood trunks fitter together, these kind of stairs were used to acquire strategic positions for survival. Stairs nowadays only be used to climb to high places and to shorten the time to pass through floors of buildings. Therefore, a stair is a medium for human or people to move or to go through between floors and building.
A stair contains of a zigzag compartment designed for people to step or climb it to their destination. There are also many types of stairs, that is box stairs, open stairs and other stairs. Box stairs may be built using more expensive species of woods where carpet won't hide this better wood. An Open Stair is one that has nice finished mitre returns on the end of the open treads for a classier look. An elevator or lift is a vertical transport vehicle that efficiently moves people or goods between floors of a building. They are generally powered by electric motors that either drive traction cables and counterweight systems, or pump hydraulic fluid to raise a cylindrical piston. In other words, elevators are a complex design that was created by Archimedes probably in 236 B.C. and then it has been developed from time to time becoming the elevator that is in the present times.
The advantages and disadvantages of stairs compared to elevators are the stairs can make a person to be healthy because they have to use their energy to climb it, while the usage of lifts can’t make your body to be healthier. The stairs also have no weight limit, therefore making it to be used by many people without worrying whether it is over the limit or not. But, the elevators, however have weight limit, making only few people can use it for a time. Nevertheless, elevators also have its own advantage that the stairs does not have. The elevators can be used to transport heavy items and materials, while stairs only making the person who is transporting the item to be a burden to himself. Plus, elevators also can help the handicap to go through between floors and buildings to make it easier for them to go upstairs or downstairs.
However, both of elevators and stairs have their similarities. Among the similarities are they are both used by humans to go through floors and buildings. They also can shorten our time to do various works. Imagine if both of these inventions are not exist, we have to climb through floors and might become a dangerous thing to do. Lastly, they are also being used in almost all of the buildings nowadays, making these inventions a very meaningful invention to humankind.
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