Invented bifocals, as well as swimming flippers, the rocking chair and proved that lightening was electricity. Benjamin Franklin

Invented the cotton gin, which separated the cotton fiber from the seeds. The machine did the work of 50 people. Eli Whitney John Deere

Invented the first American cast steel plow, which was very effective for cutting and turning the prairie soil. Invented the first incandescent lamp as well as the phonograph, & motion pictures. Thomas Edison

Alexander Graham Bell Invented the telephone, as well as the metal detector, hydrofoil, & even a device for detecting icebergs,

George Washington Carver Scientist who developed over 300 different products from peanuts and over 100 products from sweet potatoes. Wright Brothers

Changed history by inventing the first propeller-driven airplane and making the first successful manned flight. Robert Fulton Invented the first American steam-driven paddle-wheel boat (steamboat) and the first steam warship.

Louis Pasteur This scientist developed the process called pasteurization, which killed the bacteria in milk and kept it from turning sour.

Henry Ford Garrett Morgan Invented the first affordable automobiles, like the Model T, using the assembly-line method of manufacturing. Henry Ford Garrett Morgan

Invented the traffic signal and the first gas mask, both of which saved many lives His invention of the first polio vaccine ended polio epidemics , saving thousands of children and adults from the crippling disease. Jonas Salk

Cyrus McCormick Inventor of the mechanical reaper, a labor-saving machine that harvested grain and led to increased agricultural production.

Joseph Glidden The inventor of the first reliable barbed wire, known as “the wire that tamed the west”.