Author: Abdul Wahab
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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 […]
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Camera
Today, cameras have become so popular that there may be hardly any person without a camera. We all carry cameras in our smartphones that are always ready to take shots when we want. You are lucky that you are living in a time where we all carry cameras for photography. […]
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Conductors and Insulators
Electricity is the flow of electrons, called electric current in a circuit (path for electrons). Electric current tends to follow the easiest path in a circuit. Some materials are good at passing an electric current through them, while others completely block the current. These materials are called conductors and insulators. […]