IMPACT OF INVENTIONS - SchoolRack：发明-.ppt

1 1 The Cotton Gin The Cotton Gin ?? Invented by Eli Invented by Eli Whitney Whitney ?? Removed seeds Removed seeds from cotton from cotton ?? Increased the need Increased the need for more slaves in for more slaves in America America 2 2 THE COTTON GIN THE COTTON GIN ?? The cotton gin The cotton gin ?? Slaves using a cotton Slaves using a cotton gin. gin. 3 3 The Reaper The Reaper ?? Invented by Jo Anderson, a slave, and Invented by Jo Anderson, a slave, and Cyrus McCormick Cyrus McCormick ?? It increased the It increased the production production of of American American farmers farmers (farmers grew (farmers grew and harvested and harvested more crops) more crops) 4 4 The Reaper The Reaper 5 5 Inventions Inventions ?? The Reaper The Reaper ?? Invented by Jo Invented by Jo Anderson, a slave, Anderson, a slave, and Cyrus and Cyrus McCormick McCormick ?? It increased the It increased the production of production of American farmers American farmers (farmers grew and (farmers grew and harvested more harvested more crops) crops) 6 6 The Reaper The Reaper ?? Invented by Jo Anderson (slave) and Invented by Jo Anderson (slave) and Cyrus McCormick Cyrus McCormick 7 7 The Steamboat The Steamboat ?? Invented by Robert Fulton Invented by Robert Fulton ?? Provided faster river transportation Provided faster river transportation ?? Connected Southern farms with Connected Southern farms with Northern industries Northern industries ?? Connected Connected Southern Southern farms with farms with Northern Northern industries industries 8 8 Inventions Inventions ?? The Steamboat The Steamboat ?? Invented by Invented by Robert Fulton Robert Fulton ?? Provided faster Provided faster river river transportation transportation ?? Connected Connected Southern farms Southern farms with Northern with Northern industries industries 9 9 The Steamboat The Steamboat ?? Robert Fulton Robert Fulton Faster river transport Faster rive