Inside the Supreme Court chamber of the U.S. Capitol on May 24, 1844, Samuel F.B. Morse sat down to make history. The moment was the culmination of more than 12 years of work, and it was only in the ...
Morse code is a method of encoding words that was invented in the 19th Century as a way of transmitting messages over long distances. This was before the era of telephones and way before smartphones!
CC0 Usage Conditions ApplyClick for more information. Would you like to help us out? Take this quick survey: https://s.si.edu/3HyzAiK Learn about telegraphy and how to make your own telegraph key in ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果