What does the cotton gin do?

In 1794, U.S.-born inventor Eli Whitney (1765-1825) patented the cotton gin, a machine that revolutionized the production of cotton by greatly speeding up the process of removing seeds from cotton fiber.

Explanation:

the cotton gin was designed to squeeze the seeds out of picked cotton. the workers would place the cotton between two rollers, then cranked a handle, which ran the cotton between them and take the seeds out. this prevented the need to and pluck the seeds out, and make production much faster.