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.
Eli Whitney was an early American inventor who invented the cotton gin, a device used to efficiently separate cotton seed from cotton fiber. He also helped pioneer the use of interchangeable parts, which allowed firearms and other products to be cheaply mass produced.