Define interchangeable parts and an assembly line, what were the purposes of these new innovations?

Interchangeable parts- are parts inside of a product that can be replaced individually, without having to replace the entire product

Assembly Line- is the concept of having workers lined up in a "row" and repeatedly do the same job the entire time. this helped with time consumption and made factorial processes much easier

In 1798, Eli Whitney began using the process of interchangeable parts. This process involves large quantities of uniform pieces. Interchangeable parts opened the way for producing many different goods through mass production. These advances helped promote the assembly line production. In an assembly line, workers construct products more efficiently by dividing labor into specialized tasks. Each worker produces one part of the product. These innovations in manufacturing spilled over into the development of other industries, including banking, transportation, and communication.