Question

Eli Whitney invented the cotton gin, but he is also credited with changing American manufacturing by putting another idea into practice. What is it?
Question 1 options:

speeding up production by adding shifts

using water to power mills

using mass-produced, interchangeable parts

hiring women to work in his factories

Answer 1

Eli whitney, produced interchangeable parts and mass produced them. that was his other famous invention.

Answer 2

@friendzone essentially this would make manufacturing and repairing things much easier, because if you had the parts manufactured as well you could make repairs easier instead of taking the say item to the particular craftsman who made it