At what age can a cat have her first litter? Puberty (the age at which animals can reproduce) in the cat ranges from 4 to 12 months, with the average being 6 to 9 months. At puberty, cats are generally about 75% of their mature body weight.Domestic shorthair cats, as a breed, generally reach puberty earlier than domestic longhair cats.t what age can a cat have her first litter? Puberty (the age at which animals can reproduce) in the cat ranges from 4 to 12 months, with the average being 6 to 9 months. At puberty, cats are generally about 75% of their mature body weight.
While Eli Whitney is best remembered as the inventor of the cotton gin, it is often forgotten that he was also the father of the mass production method. In 1798 he figured out how to manufacture muskets by machine so that the parts were interchangeable.
A Revolutionary Invention. The cotton gin is a machine that separates cotton seeds from cotton fiber. Invented by Eli Whitney in 1793, it was an important invention because it dramatically reduced the amount of time it took to separate cotton seeds from cotton fiber. Prior to Whitney's invention, cotton seeds had to be removed by hand or with other primitive tools, making it a tedious and time consuming process.