{Cotton Gin} A cotton gin is a machine that quickly and easily separates cotton fibers from their seeds. Which allows for greater productivity than hand separating the cotton. The cotton gin separates cotton 50 times faster than the average slave could. This created more work to get done and it made it easier on the slaves.
*Telegraph* Telegraphy is the long distance transmission of symbolic messages, but without the physical exchange between the sender and the receiver of the message. This had a huge impact on people in the mid 1800's because, they use to have to send someone on horse back or carriage to deliver their mail for them. Thus creating many complications because, people were learning information long after it had happened. Therefore, with the telegraph, you could quickly deliver important/non-important information to friends and loved ones.
[Steamboat] A steamboat is a boat in which the primary method of propulsion is steam power. This was beneficial in the mid 1800's because the Panic of 1819 alerted the need for more effective transportation of goods. Most rivers ran north to south, so they could not connect western farmers with the eastern markets where their goods were sold. That's why the steamboat made trading goods easier, and it helped transport more goods at one time.
¿Railroad¿ The expansion of the railroads in the late 1800s was instrumental in helping the US economy boom. It did this in two ways. First, the railroads created a tremendous amount of demand for goods and labor on their own.Second, the railroads created a huge national market.Before the railroads, it had been very hard to get goods from place to place on land.Therefore, the whole western United States was basically worthless to the national economy because goods could not be transported easily from one place to the rest of the US.
:Life Before and After the Westward Expansion: Life before was harder on people. They couldn't trade around all of the U.S. And it made cotton picking harder on slaves. But with inventions such as railroads, steamboats, the cotton gin, and the telegraph life was easier. You could communicate with relatives, trade further, and pick more cotton. All of these inventions sped up the expansion process because, it made life easier and led to bigger better things.