Traditional Culture Encyclopedia - Traditional stories - What secret code is commonly used in spy movies to transmit information by tapping the wall or other objects with your fingers?
What secret code is commonly used in spy movies to transmit information by tapping the wall or other objects with your fingers?
Morse code
Morse alphabet (also translated as Morse alphabet) is an on-off signal code, which represents different English letters, numbers and punctuation marks through different arrangement orders. It was invented by American Samuel Finley Breese Morse in 1837, when he was assisting Samuel Morse to invent Morse telegraph machine (1835).
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