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.
In popular mythology, Eli Whitney has been deemed the father of American technology, for two innovations: the cotton gin, and the idea of using interchangeable parts. Young Entrepreneur Eli Whitney was born in 1765 and grew up on a Massachusetts farm. During the Revolutionary War he manufactured nails to fill the demand caused by British embargos. Young Eli quickly learned how the marketplace worked, and diversified into hatpins and canes.