text_original: :His first experiment was made at nine years of age, when he prepared a quantity of gunpowder for fireworks, according to directions contained in. some "Scientific book to which he had access.
text_transcription: HIS FIRST EXPERIMENT WAS MADE AT NINE YEARS OF AGE WHEN HE PREPARED A QUANTITY OF GUNPOWDER FOR FIREWORKS ACCORDING TO DIRECTIONS CONTAINED IN SOME SCIENTIFIC BOOK TO WHICH HE HAD ACCESS
phonemes: :hɪz fˈɜːst ɛkspˈɛɹɪmənt wʌz mˌeɪd æt nˈaɪn jˈɪɹz ʌv ˈeɪdʒ, wˌɛn hiː pɹɪpˈɛɹd ɐ kwˈɔntᵻɾi ʌv ɡˈʌnpaʊdɚ fɔːɹ fˈaɪɚwɜːks, ɐkˈɔːɹdɪŋ tə dᵻɹˈɛkʃənz kəntˈeɪnd ˈɪn. sˌʌm "saɪəntˈɪfɪk bˈʊk tʊ wˌɪtʃ hiː hæd ˈæksɛs.