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As the U.S. prepared to enter World War I, the Navy Department began a program to train women as radio operators who could be called into action in the event of war. The Girls' Division of the United States Junior Naval Reserve established training camps at the Martha Washington Post, in Edgewater, New Jersey, and the Betsy Ross Post, at Bay ...
Before the discovery of electromagnetic waves and the development of radio communication, there were many wireless telegraph systems proposed and tested. [4] In April 1872 William Henry Ward received U.S. patent 126,356 for a wireless telegraphy system where he theorized that convection currents in the atmosphere could carry signals like a telegraph wire. [5]
The early history of radio is the history of technology that produces and uses radio instruments that use radio waves. Within the timeline of radio, many people contributed theory and inventions in what became radio. Radio development began as "wireless telegraphy". Later radio history increasingly involves matters of broadcasting.
On International Women’s Day, here’s a look at some of the most important inventions created by women
The Women's Radio Corps was established during World War I by Edna Owen and an advisory council consisting of many influential figures in the field of wireless communications: Gano Dunn, past president of the American Institute of Electrical Engineers; Alfred Goldsmith, co-founder of the Institute of Radio Engineers; Edward J. Nally, vice president and general manager of the Marconi Wireless ...
The dishwasher, chocolate-chip cookies, and the first version of the Monopoly board game were all created by women. 20 things you didn't know were invented by women Skip to main content
In honor of Women’s History Month, we’re giving credit where credit is due, and highlighting 10 products made by women.
The hot comb was an invention developed in France as a way for women with coarse curly hair to achieve a fine straight look traditionally modeled by historical Egyptian women. [44] However, it was Annie Malone who first patented this tool, while her protégé and former worker, Madam C. J. Walker, widened the teeth. [45]