There are several reported routes of transmission of the rabies virus. Rabies is most often transmitted through a bite from an infected animal. Less frequently, it can be passed on when the saliva of an infected animal enters another animalâs body through mucous membranes or an open, fresh wound.
Eli Whitney invented a cotton gin. It was an improvement on the roller gins of the time in that it separated seeds from fibers faster and more easily. But his greater achievement was, arguably, the development of interchangeable parts.
American inventor Eli Whitney best illustrates the rise of industrialism with his invention of the cotton gin and his development of interchangeable parts for muskets. Whitney invented the cotton gin in 1793. It is a machine that rapidly removes cotton plant seeds from the valuable cotton fiber used to make thread and fabric.