Author: Abdul Wahab
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Volcano
Volcanoes are mountains whose tops are opened downward. These openings reach below the surface of the earth – where the rock is molten. Volcanoes are mostly closed like a soda bottle, but below which the pressure continues to grow over time. When the pressure reaches a certain level the hot […]
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Bicycle
Bicycles are very famous for traveling to nearby points. They also improve the health of a person who regularly uses it instead of bikes or cars. Bicycles as we know it today were not invented by a single person in present-day shape. Instead, its development took about 200 years and […]
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Airplane
Nowadays, airplanes have become a common way of transportation. You can fly to any city of the world very quickly on airplanes than any other method of transportation. Airplanes have forced us to think that, the earth is a smaller place to accommodate ourselves. Because you can travel to any […]
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Diesel Engine
The diesel engine is a type of the internal combustion engine – an engine that burns fuel internally. It was invented by a German engineer Rudolf Diesel, and the engine was named after him. The diesel engine was designed to improve the efficiency of internal combustion engines so that more […]
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Cotton Gin
The cotton gin is a machine that is used to separate the seeds from cotton fibers. Before the invention of cotton gin, people had to separate the seeds with their hands. This manual separation process was very time consuming and laborious. But the invention of cotton gin revolutionized the industry […]
