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| Samuel's wife also helped the mill, she made thread thicker so it won't break easily. It also made the mill run getter and faster. | |
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| The factory was very very good, soon, people were copying his ideas. | |
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| An important American inventor was Eli Whitney. he wanted factories that make guns. | |
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| Befor him, all gun parts were made by hand. So all of the parts were different. | |
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| If one part broke, then ppl had to make new parts | |
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| And it would take a very long time... | |
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