nˈaɪntiːnhˈʌndɹɪd θˈɜːɾi θɹˈiː tˈoːɹ bˈɜːdʒɚɹən pˈʌblɪʃt pˈeɪpɚɹ ˈɔn "fˈɪzɪks ʌv klˈaʊdz ænd pɹɪsˌɪpɪtˈeɪʃən" dᵻskɹˈaɪbɪŋ pɹɪsˌɪpɪtˈeɪʃən fɹʌm sˈuːpɚkˌuːld dˈuː tə kɑːndɛnsˈeɪʃənəl ɡɹˈoʊθ ʌv ˈaɪs kɹˈɪstəlz ɪn pɹˈɛzəns ʌv wˈɔːɾɚ dɹˈɑːps
1933 Tor Bergeron published paper on "Physics of Clouds and Precipitation" describing precipitation from supercooled (due to condensational growth of ice crystals in presence of water drops)