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.
At his armory he pioneered the use of interchangeable parts and the milling machine. Whitney died in 1825 at the age of 58. Definition of Interchangeable Parts. The concept behind interchangeable parts lies in creating nearly identical parts that can be easily mass