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John Roebuck
He invented the leaden condensing chambers. -
leaden condensing chambers
The substitution of leaden chambers for glass globes, which had been employed for years, revolutionized the production process and drastically reduced costs. -
Henry Cort
He invented the pudding process for making wrought iron. -
Pudding process
The puddling process converted pig iron into wrought iron by subjecting it to heat and stirring it in a furnace, without using charcoal. It was the first method that allowed quality wrought iron to be produced on a large scale. -
Eli Whitney
He was the man who invented the cotton gin -
Cotton Gin
It was a machine that picked the dirt and depre out of pieces of cotton, which was supposed to make it easier on slaves but ended up making it worse for them. -
Alessandro Volta
He was an Italian chemist and physicist who made the electric battery -
Battery
Invented by Alessandro Volta, a battery is a source of electric power consisting of one or more electrochemical cells with external connections for powering electrical devices. When a battery is supplying power, its positive terminal is the cathode and its negative terminal is the anode. -
Karl Marx
He invented communism -
Communism
A type of government where all the citizens are equal, there is no private ownership of businesses, and no class systems -
Cyrus Field
He invented the first transatlantic cable -
Transatlantic Cable
Transatlantic telegraph cables were undersea cables running under the Atlantic Ocean for telegraph communications