korean graphic experiments:
the korean alphabet, known as "hangeul", is a writing system created by king sejong the great in 1443. the letters for the consonants reflect the shape of the speech organs used to pronounce them, and they are systematically modified to indicate phonetic features; the vowel letters are systematically modified for related sounds, so hangeul is a featural writing system, where the shapes of the symbols (such as letters) are not arbitrary but encode phonological features of the phonemes that they represent.