PBS
Pbs the West: Joseph Farwell Glidden
Information about the Illinois farmer who improved fencing the plains that led to the demise of open-range cattle ranching. Glidden is credited with the invention of barbed wire.
Calisphere: University of California Libraries
University of California: Calisphere: 1900 1940s: The Rise of Technology
Primary source photographs depicting new technologies and communications at the turn of the 20th century and how lives changed as a result.
PBS
Pbs: Technology and Discoveries
Biographical survey of people who had an impact on 20th century technology and science, including Wallace Carothers, Rachel Carson, Lee de Forest, Henry Ford, Jay Forrester, Grace Murray Hopper, Guglielmo Marconi, William Shockley,...
National Humanities Center
National Humanities Center: America in Class: Becoming Modern: America in the 1920s: Machine
Primary resource material on the way innovatons and machines have modernized and changed America in the 1920s and beyond.
Other
Institute for the Preservation of Elevator History: Frank J. Sprague
Biography of Sprague, who is responsible for the development of electric trailways, electric elevators, and a commercial form of the electric motor.
National Humanities Center
National Humanities Center: America in Class: The Airplane as a Symbol of Modernism
Through art and text, lesson explores Modernism through the airplane as a symbol in the 1920s. Content includes questions for analysis and discussion, follow-up, and guide for discussing art.
Library of Congress
Loc: Alexander Graham Bell Family Papers
All the primary source documents of the Graham Bell Family can be found at this Library of Congress site. An exhaustive site that is interesting to peruse.
Other
Internet Society: A Brief History of the Internet
A brief history of the internet, written by those who were involved in the development evolution of the Internet. This history revolves around four distinct aspects: the technological evolution, operations and management aspect of a...
Great Idea Finder
The Great Idea Finder: Computer Mouse
A short article about the computer mouse and the inventor, Douglas Engelbart.
Great Idea Finder
The Great Idea Finder: George Eastman
A brief biography of George Eastman focusing on his inventions as well as his philanthropy.
National High Magnetic Field Laboratory
Magnet Academy: Lee De Forest
American inventor Lee De Forest was a pioneer of radio and motion pictures. He received more than 300 patents over the course of his lifetime, the most important of which was for a three-electrode vacuum tube, or triode, that he called...
Energy for Sustainable Development
Esd Bulgaria: Kids & Energy: Energy Pioneers: Gertrude Elion (1918 1999)
A profile of Gertrude Belle Elion, an American biochemist and pharmacologist and a Nobel Prize winner. She struggled to find her place in the male-dominated scientific world, and went on to become the first woman to be inducted into the...
University of St. Andrews (UK)
University of St. Andrews: Sir David Brewster
This biography on inventor David Brewster discusses his accomplishments, including his writings, and his invention of the kaleidoscope and the stereoscope.
Other
National Museum of Science and Technology: Leonardo
Leonardo da Vinci, famous Renaissance painter and inventor, is the subject of a special collection of resources maintained by the National Museum of Science and Technology in Milan, Italy. Includes a gallery of his work, his biography,...
Other
Westinghouse Electric Co.: George Westinghouse
A brief biography from the company that bears his name. George Westinghouse was a prolific inventor, and this biography recounts his many inventions, beginning with the air brake which greatly increased safety on the railroads.
National High Magnetic Field Laboratory
Magnet Academy: Wheatstone Bridge 1843
Read about the device used for measuring resistance in a circuit which was discovered in 1843, but had been invented a decade earlier. The inventor's name was not Wheatstone.
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