How much time did Eli Whitney make his cotton gin?
In only ten days, Whitney came up with a model. His cotton engine, or gin, had two rollers with thin wire teeth. The teeth separated the seeds from the fibers, leaving the cotton ready to be spun. The cotton gin was simple, but its effects were enormous. A worker using a gin could do the work of 50 people cleaning cotton by hand. Because of the gin, planters could now grow cotton at a huge profit.
