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117 years ago #Today, this sequence of characters was specified as the international distress signal
In International Morse Code, three dots form the letter "S" and three dashes make the letter "O", so "S O S" became a common way to remember the order of the dots and dashes.…
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117 years ago #Today, this sequence of characters was specified as the international distress signal
In International Morse Code, three dots form the letter "S" and three dashes make the letter "O", so "S O S" became a common way to remember the order of the dots and dashes.
"S O S" being readable upside down as well as right side up (as an ambigram) is an advantage for visual recognition especially from above.
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