text_original: He had pondered long and patiently on the subject of balloons  endeavouring to recall to mind what little he had studied of aerostatics  and had mentally examined all the material objects within reach, in the hope of discovering some substance out of which one might be constructed.
text_transcription: HE HAD PONDERED LONG AND PATIENTLY ON THE SUBJECT OF BALLOONS ENDEAVORING TO RECALL TO MIND WHAT LITTLE HE HAD STUDIED OF ARISTOTICS AND HAD MENTALLY EXAMINED ALL THE MATERIAL OBJECTS WITHIN REACH IN THE HOPE OF DISCOVERING SOME SUBSTANCE OUT OF WHICH ONE MIGHT BE CONSTRUCTED
phonemes: hiː hæd pˈɑːndɚd lˈɔŋ ænd pˈeɪʃəntli ɔnðə sˈʌbdʒɛkt ʌv bəlˈuːnz ɛndˈɛvɚɹɪŋ tə ɹᵻkˈɔːl tə mˈaɪnd wʌt lˈɪɾəl hiː hæd stˈʌdid ʌv ˌɛɹoʊstˈæɾɪks ænd hæd mˈɛntəli ɛɡzˈæmɪnd ˈɔːl ðə mətˈɪɹiəl ˈɑːbdʒɛkts wɪðˌɪn ɹˈiːtʃ, ɪnðə hˈoʊp ʌv dɪskˈʌvɚɹɪŋ sˌʌm sˈʌbstəns ˌaʊɾəv wˌɪtʃ wˈʌn mˌaɪt biː kənstɹˈʌktᵻd.