1. Section 10-4
19th Century Progress

2. Inventions made Life Easier
Gasoline & electricity were replacing coal & steam as sources of energy
Thomas Edison – invented the electric light bulb and the idea of a research laboratory
Alexander Graham Bell – telephone
Guglielmo Marconi – sent the 1st radio waves across the Atlantic
Henry Ford – 1st to use standard interchangeable parts and the assembly line to make automobiles more affordable
Wilbur and Orville Wright – 1st to fly a gas powered flying machine

3. Advances in Medicine
Louis Pasteur – discovered the Germ Theory of Medicine (bacteria caused people to get sick and that heat could kill bacteria
Helped public officials to realize that a clean environment would help to keep bacteria away
Medical researchers developed vaccines for typhus, typhoid fever, diphtheria, and yellow fever

4. Advances in Science
Charles Darwin – created the theory of evolution – that stated that all forms of life evolved from earlier living forms that existed millions of years ago
Gregor Mendel – said that all life forms were made up of a certain genetic sequence
Dmitri Mendeleev – organized the elemental chart by weight from lightest to heaviest.
Marie and Pierre Curie – discovered 2 new elements that were missed by Mendeleev (radium and polonium) these 2 elements released a form of energy that was called radioactivity

5. Social Sciences explore behavior
The new advances in sciences led to creation of modern social sciences such as archaeology, sociology, and anthropology
Sigmund Freud – came up with idea that the unconscious mind makes people act in certain ways
This brought up the new idea that humans were not in control of their behavior

6. The Emergence of Mass Culture
People began to enjoy leisure activities like sports, the theatre, and vacations