3. Alexander Graham Bell John Moses Browning Willis Carrier Samuel Colt Henry Ford Robert Fulton Charles Goodyear CyrusMcCormick Samuel F.B. Morse Dr. Jonas salk Eli Whitney Orville & Wilbur Wright Inventors
4.
5. Cyrus McCormick Willis Carrier Mechanicalreapertoharvestgrain (1834) Air conditioning (1906)
6. Samuel F.B. Morse Samuel Colt Morse code (1840) Firearms/revolver(1835)
7. Dr. Jonas Salk Henry Ford Polio vaccine (1955) Ford model-T (1908) The yearthat the automobile becamepopular.
8. Robert Fulton Eli Whitney Steamboat (1788) Submarine (1793) Cotton engine (1796)