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 one of the first great inventors in the United States. He invented the cotton gin, which helped to make cotton the most important crop of the Southern states. He also invented methods of producing many goods quickly and cheaply. Factories still use these methods, called mass production, today.