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 1793, Eli Whitney invented a simple machine that influenced the history of the United States. He invented a cotton gin that was popular in the South.The South became the cotton producing part of the country because Whitneys cotton gin was able to successfully pull out the seeds from the cotton bolls. Eli Whitney was born in Westboro, Massachusetts on December 8, 1765 and died on January 8, 1825.he cotton gin was a very simple invention. First, the cotton bolls were put into the top of the machine. Next, you turn the handle, which turns the cotton through the wire teeth that combs out the seeds. Then the cotton is pulled out of the wire teeth and out of the cotton gin. Farmers were able to plant more cotton.