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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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Born 280 years ago #Today, Antoine Lavoisier changed chemistry from a qualitative to a quantitative science. He recognized and named oxygen and hydrogen, helped construct the metric system, wrote the first extensive list of elements and devised the law of conservation of mass
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Born 280 years ago #Today, Antoine Lavoisier changed chemistry from a qualitative to a quantitative science. He recognized and named oxygen and hydrogen, helped construct the metric system, wrote the first extensive list of elements and devised the law of conservation of mass
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Massimo
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37 years ago today, the Chinese government brutally crushed peaceful protesters in and around Tiananmen Square who were demanding an end to corruption, freedom of speech, and democratic reform. The massacre revealed a truth the world should never forget: the Chinese Communist
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37 years ago today, the Chinese government brutally crushed peaceful protesters in and around Tiananmen Square who were demanding an end to corruption, freedom of speech, and democratic reform. The massacre revealed a truth the world should never forget: the Chinese Communist
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