Skip to main content

The Cotton Gin

 The cotton gin, the machine for cleaning cotton of its seeds, was invented in the United States by Eli Whitney in 1793. The cotton gin is an example of an invention directly called forth by immediate demand. The mechanization of spinning in England had created a greatly expanded market for American cotton, whose production was inhibited by the slowness of manual removal of the seeds from the raw fiber.

Whitney, a Massachusetts Yankee visiting a friend in the South, learned of the problem and quickly solved it with a device that pulled the cotton through a set of wire teeth mounted on a revolving cylinder, the fiber passing through narrow slots in an iron breastwork too small to permit passage of the seed. The simplicity of the invention which could be powered by man, animal or water caused it to be widely copied despite Whitney’s patent; it is credited with fixing cotton cultivation, virtually to the exclusion of other crops, in the U.S.


Impact of the cotton gin in India.

 The worm gear roller gin, which was invented in the Indian subcontinent during the early 13th to 14th centuries, came into use in the Mughal Empire sometime around the 16th century, and is still used in the Indian subcontinent through to the present day. Another innovation, the incorporation of the crank handle in the cotton gin, first appeared sometime during the late Delhi Sultanate or the early Mughal Empire. The incorporation of the worm gear and crank handle into the roller cotton gin led to greatly expanded Indian cotton textile production during the Mughal era.

It was reported that, with an Indian cotton gin, which is half machine and half tool, one man and one woman could clean 28 pounds of cotton per day. With a modified Forbes version, one man and a boy could produce 250 pounds per day. If oxen were used to power 16 of these machines, and a few people's laborers were used to feed them, they could produce as much work as 750 people did formerly.



Credits: Sasi Kumar




Comments

Popular posts from this blog

WHY ATLANTIC AND PACIFIC OCEAN ARE NOT MIXED?

Nearly 72% of the earth is filled with water and it is present with different names- oceans, seas, rivers. Why are they named differently? There are five oceans namely Artic ocean, Atlantic Ocean, Pacific Ocean, Indian ocean and Antarctic ocean . All the oceans are different in their physical and biological character called ocean clines. When we look at the Atlantic and Pacific Ocean junction, they do not mix. Is there any invisible Wall in between them? Many scientists have conducted research to solve this mystery. The Atlantic and Pacific Ocean have different chemical composition. The salinity of the water in the Atlantic Ocean is five times more than the Pacific Ocean. The density of water is also different, so even marine animals in Atlantic Ocean will not go to the Pacific Ocean. They cannot survive in other oceans. Atlantic and Pacific Ocean meet at Cape Horn. The narrow straight line formed by the water bodies is called Drake Strait. The Pacific Ocean is ...

5 Amazing Animal Temple

1) Crocodile Temple:      The Ananthapadmanabhaswamy Temple or Anantha Lake Temple is built for Lord Vishnu. It is also called a crocodile temple. This temple built in the middle of a lake in the little village of Ananthapura, around 6 km from the town of Kumbla in Manjeshwaram Taluk of Kasaragod District of Kerala. There is a harmless crocodile that lived in the Ananthapadmanabhaswamy Temple’s lake. It is a vegetarian. Believable of this place is that you will get lossed posting or objects after visiting this place. 2) Rat Temple:      The Karni Mata Temple is situated at Deshnoke in Rajasthan. This temple is the craziest place because it gives importance to rats. They believe that the god of this temple incarcerated every year as a rat. More than 25,000 black rats are living in this temple. White rats are considered a very holy animal in this temple. The food that gives to people as prasatham is the remaining food eaten by a rat....

The Oldest Phone In The World

  The first cellular telephones are called Dyna Tac. It is manufactured from 1983-1994. It received approval from the U.S. FCC on September 21, 1983. Martin Cooper of Motorola made the first publicized handheld mobile phone call on a prototype DynaTAC model on April 3, 1973. This is a reenactment in 2007.    The dimensions of this phone are 3300 x 898 x 445 mm, vol. 1318710 cm³.This cellular phone is available at the minimum weight of 2 pounds. It is used in the ALOHAnet system, including metal–oxide–semiconductor (MOS) transceiver and modem technology. It has nine additional key.They are Rcl (recall),Clr (clear),Snd (send),Sto (store),Fn (function),EndPwr (power),Lock and Vol (volume).Minimum sim is used in this phone. In 1983, The market price for this phone is $3,995.   In 1930, Travelers could place phone calls from and to ocean liners in the middle of the Atlantic Ocean. The process was driven by Marine VHF Radio and cost $7 a minute. In 1984 Motoro...