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NASA
From Smoke Signals to Cell Phones: Tracing How Technologies Evolve
Explore the science of space exploration. Pupils consider technological advances in propulsion, communication, power, navigation, and imaging. They select one of these areas and create a timeline of historical progress that contributed...
A&E Television
History.com: 6 Key Inventions by Thomas Edison
Edison's genius was improving on others' technologies and making them more practical for the general public. Thomas Edison applied for his first patent in 1868, when he was just 21 years old. The famous inventor's first brainchild was...
Other
The Birth of the Recording Industry
Here is a very interesting article about the birth of the recording industry. It primarily deals with the invention and improvement of the phonograph beginning in 1877.
University of Houston
University of Houston: Engines of Our Ingenuity: No. 869: 1876 Technology
Learn about the information that can be found in an 1876 issue of a magazine, The Manufacturer and Builder, about the tools, machines, and innovations of that era, including a reference to a young Thomas Edison. This is a transcript of a...