Cameras, Telephones, and Phonographs
Lecture no. 19 from the course: Understanding the Inventions That Changed the World
Taught by Professor W. Bernard Carlson | 30 min | Categories: The Great Courses Plus Online Science Course
The mid-19th century saw the rise of analog communications, where film and electric currents were used as substitutes for an object or message. Meet the inventors of the first information age—among them, Louis Daguerre, Alexander Graham Bell, and Thomas Edison—and learn how they made information and knowledge widely available to millions.