151 World’s Greatest Inventions

World's Greatest InventionsRead and learn about the world’s greatest inventions that change the human life and societies. These fascinating stories will leave children’s awe-struck and make them think to do the impossible.

X-ray

X-rays are basically a form of electromagnetic radiation that allows to look inside a body without cutting open. Wilhelm Rontgen, a German physicist, is generally given the credit for having invented X-rays. He was the first person to have studied the details of X-rays minutely and also observed the effects of them. In fact, he …

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Transistor

The invention story of the transistor starts with the inception of thermionic triode. The triode invented in 1907 acted as a precursor for transistors. Initially used in radio and telephone, these triodes were quite fragile and power-consuming. In the year 1925, Julius Edgar Lilienfeld manufactured Field Effect Transistor as a replacement for triode. In the …

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Teflon

Teflon was accidentally invented by a chemist, Dr. Roy J. Plunkett. Teflon, also known as polytetrafluoroethylene, is the plastic that is used to coat pots and pans to give it a distinct sheen. It is a fluorocarbon polymer with slippery, non-sticking and stain-resistant properties. Dr. Plunkett was hired by E.I. DuPont de Nemours & company …

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Tablet

In 2002, Bill Gates and the Microsoft Corporation invented contemporary tablets. Tablets are now integrated into portable devices such as cell phones, providing touch screen facility, web browsing, word processor system and much more. It helps in many ways; it’s like a boon for today’s world. Early portable tablets were heavy and with limited battery …

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Tyre

Without the wheel most of the world’s work would stop. Automobiles, trains, street-cars, farm machines, wagons and nearly all factory and mine equipment would be useless. The oldest wheel known was discovered in Mesopotamia and is believed to date back 55 centuries. Man learnt to bind the rim and hold the fellies together with over …

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