History project answer of class 9(2021-2022)
History project 1 Spinning Jenny In 1764, British carpenter and weaver James Hargreaves invented a device which he called a spinning jenny. It accomplished the complex task of pulling and twisting the cotton cloth to make a strong thread. It is believed that Jenny was short for engine as it was a spinning engine. The machine had eight spindles to begin with and increased the workers output by eightfold. Although the thread was not strong enough, the spinning jenny could fit into a small cottage and be operated by unskilled workers, including children, and was hence extremely popular. 2 Steam Engine The steam engine is termed as the defining innovation of the first industrial revolution in Britain. It was the energy behind advanced inventions in textiles (power loom, spinning mule) and transport (steam powered locomotives and ships) and was one of th...