Artifacts From the 19th and 20th Century
19th Century:
Its funny how paper is never really given importance because of the fact that it is so inexpensive and everywhere, that most of us take it for granted. In this paper, we will look at the making of the paper and how it became one of the most disposable products in the world.
Till the mid-1800's paper was considered an expensive commodity and was available only in individual hand-made sheets. Paper was the size of a papermaking frame that had to be handled by one or two people.
This created two problems, one was to be able to manufacture the paper in that size and the second was to manufacture in high volumes.
Rags, grass and straw were used to manufacture high quality paper. Then came the lower quality paper called cardboards and wall coverings. During the industrial growth of the 1800's, usage of paper grew vastly but also went down because during the civil war, rags were suppose to be collected and saved.
The economics changed drastically when paper was starting to be manufactured from pulp of wood using the papermaking machine called the Fourdrinier machine. This machine helped lower the price of raw materials and allowed paper to be manufactured in high volumes in the form of long rolls. This development took place around the mid-19th century.
In its purest form, paper is very simple and a natural material, although in the beginning it is in the crude form that needs to be refined through various processes. A material such as linen, cotton, or chemically treated wood chips is condensed into a nearly pure form of cellulose fiber. In the mechanical pulping process the fibers are mashed, flattened, and fibrillated in water slurry, the process is known as beating. This produces a liquid pulp, which is supplied wet to the paper-maker or dried in sheets to be reconstituted for use later on.
The invention of the machine implies that a simple duplication of 19th century technology led to the manufacturing of so many types of paper that are easily and abundantly available today. All the important information is preserved in the form of documents using good quality paper.
20th Century:
In the starting of the 20th century, it took nearly 7 to 10 days to travel from Europe to America by sea. However, at the end of the century, people were able to travel on the Concorde that hardly takes 4 hours. The speed and efficiency of air travel have led to social land economic gains all over the world. The astonishing engineering developments shaped the airplane's evolution in the 20th century.
In 1903, the first powered human-piloted flight took Wilbur Wright 120 feet up in the air within 12 seconds. The next flight that Orville Wright flew went 852 feet up in the air and took 59 seconds. Today, the trends are different and people worldwide use airplanes to fly thousands of miles each year for business and otherwise.
The most amazing achievements in aviation were at the beginning of the century, when it was not very common to fly by air. This is the time, when the airline industry was in the process of creation and innovation.
The first few flights were risky and rather daring. Fliers were not called pilots but were called aeronauts. Planes were initially very noisy and the low-flying craft was made of cloth or wood. The cockpit was totally open, making the pilot prone to the weather and other hazards. Fuel was also unrefined and sometimes unreliable, therefore crash landings were not unusual. There were no guidance systems or satellites to warn the pilots about storms and other weather hazards. The initial maps used were directional signals painted on barn roofs. Flying at night was nearly impossible. In the 1920s, rotating beacons were set up at a distance of every50 miles or so across the country to guide planes.
Airports use to be just grassy plains that used wooden shacks for terminals. They have...
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