Encyclopedia Britannica
Encyclopedia Britannica: Lonnie Johnson
This entry from Encyclopedia Britannica features Lonnie Johnson, a prolific black American musician, singer, and songwriter, one of the first major blues and jazz guitarists.
Smithsonian Institution
National Museum of American History: On Time: Alarm Clock
People awoke not with the rising of the sun, but with the rude, mechanical jangling of an alarm clock at their bedsides. The clock, rather than the sun or any rhythms of nature or body, determined the patterns of life and work. People...
Siteseen
Siteseen: American Historama: Mc Cormick Reaper
Read interesting facts about Cyrus McCormick, inventor of the mechanical horse-drawn reaper 1n 1831.
Agnes Scott College
Agnes Scott College: Grace Murray Hopper
Short biography includes a picture and references.
Other
Patent Museum: Egg Beater: Willis Johnson 1884
A brief description to the patent filing and an excerpt from the patent request that Willis Johnson filed for his improvements in the egg beater. Included are drawings submitted with the patent request.
PBS
American Experience: Technology Timeline: 1752 1990
Short descriptions of important technological innovations produced in America and the date of their introduction.
National Academy of Engineering
Greatest Achievements: Airplane
This page provides an overview of the history behind one of the greatest engineering innovations of all time:the airplane. There is also a timeline showing its development.
Other
Buckminster Fuller Institute: R. Buckminster Fuller, 1895 1983
An extensive biography of R. Buckminster Fuller, an inventor and a philosopher who devoted much of his time to devising practical solutions to the world's problems. There are many additional resources on the site, including information...
Curated OER
Educational Technology Clearinghouse: Clip Art Etc: John A. Dahlgren
Dahlgren was a naval officer and inventor. He invented the Dahlgren gun and wrote many books.
Curated OER
Otis Boykin
Otis Boykin invented electronic control devices for guided missiles, IBM computers, and the control unit for a pacemaker.
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.
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