Morse code, the language of the telegraph, is a system of communication that's composed of combinations of short and long tones that represent the letters of the alphabet. The tones are sometimes ...
Morse code is a communication system developed by Samuel Morse, an American inventor, in the late 1830s. The code uses a combination of short and long pulses – dots and dashes, respectively – that ...
When Samuel Morse sent the Bible passage "What hath God wrought" from the basement of the Capitol in Washington D.C. to Alfred Vail in Baltimore in May of 1844, he might not have suspected that Vail's ...
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
反馈