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प्रश्न
In the play, two devices that make use of wheels are given. The devices are:
- _______________
- _______________
From the internet or other sources, trace the history of the use of the wheel. Write ‘An Autobiography of a Wheel’.
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उत्तर
The devices are (1) Bicycle (2) Grinding stones You all know me as your helpful friend, I'm the wheel. I was born in prehistoric times when humans saw a log of wood roll down a hill. They realized that a round object can spin and move objects with it. Such logs were used to transport blocks of stone as a primitive conveyor belt. They slowly shaped and developed me in a similar shape to what you now know. I was joined to my friend, the axle and rest, as they say, is history. I was used for many things; children would play with me as toys, men would use me to make pots and women would grind grain using me. I was also attached to pieces of wood to form a cart that would take people anywhere they wanted. It could be used to carry food and other goods and was pulled by animals like horses, oxen, camels. Later, I was used by people steer, these vehicles in a new form called a steering wheel. Slowly, I was used in mills to draw water, and in factories to produce the goods which I transported. I was made better till I was everywhere. I controlled not only cars but also ships and even planes much later. These planes flew using propellers and jet engines which are other versions of me. I also realized that I'm a simple machine that can be used to make complex machines. I run inside all mechanical objects from watches to computers and am used mainly to power them. I even create electricity which is created from a spinning version of me called the turbine which is connected to a generator to create energy. I am busy working everywhere for your benefits, but I don't want anything in return. I just wanted to tell you my story, my friends, and J thank you for listening.
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