Question

machines worked by principle of charkha ​

Answer 1

Answer:

Charkha. The tabletop or floor charkha is one of the oldest known forms of the spinning wheel. The charkha works similarly to the great wheel, with a drive wheel being turned by one hand, while the yarn is spun off the tip of the spindle with the other.

Explanation:

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Answer 2

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Galileo di Vincenzo Bonaiuti de' Galilei was an Italian astronomer, physicist and engineer, sometimes described as a polymath, from Pisa. Galileo has been called the "father of observational astronomy", the "father of modern physics", the "father of the scientific method", and the "father of modern science". 

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