text_original: He knew that the atmosphere in such a situation would be extremely rarefied, and that a balloon, which might easily ascend many thousand feet into the air starting from the level of the sea, would not stir from the ground if carried to the top of a mountain ten thousand feet high. This was the circumstance which preyed upon the spirit of the young philosopher, and hindered him from entertaining any very sanguine hopes of success in the experiment they were making.
text_transcription: HE KNEW THAT THE ATMOSPHERE IN SUCH A SITUATION WOULD BE EXTREMELY RAREFIED AND THAT A BALLOON WHICH MIGHT EASILY SEND MANY THOUSAND FEET INTO THE AIR STARTING FROM THE LEVEL OF THE SEA WOULD NOT STIR FROM THE GROUND IF CARRIED TO THE TOP OF A MOUNTAIN TEN THOUSAND FEET HIGH THIS WAS A CIRCUMSTANCE WHICH PREYED UPON THE SPIRIT OF THE YOUNG PHILOSOPHER AND HINDERED HIM FROM ENTERTAINING ANY VERY SANGUINE HOPES OF SUCCESS IN THE EXPERIMENT THEY WERE MAKING
phonemes: hiː nˈuː ðætðɪ ˈætməsfˌɪɹ ɪn sˈʌtʃ ɐ sˌɪtʃuːˈeɪʃən wʊd biː ɛkstɹˈiːmli ɹˈɛɹfaɪd, ænd ðˌæɾə bəlˈuːn, wˌɪtʃ mˌaɪt ˈiːzili ɐsˈɛnd mˈɛni θˈaʊzənd fˈiːt ˌɪntʊ ðɪ ˈɛɹ stˈɑːɹɾɪŋ fɹʌmðə lˈɛvəl ʌvðə sˈiː, wʊd nˌɑːt stˈɜː fɹʌmðə ɡɹˈaʊnd ɪf kˈæɹid tə ðə tˈɑːp əvə mˈaʊntɪn tˈɛn θˈaʊzənd fˈiːt hˈaɪ. ðɪs wʌzðə sˈɜːkəmstˌæns wˌɪtʃ pɹˈeɪd əpˌɑːn ðə spˈɪɹɪt ʌvðə jˈʌŋ fɪlˈɑːsəfɚ, ænd hˈɪndɚd hˌɪm fɹʌm ˌɛntɚtˈeɪnɪŋ ˌɛni vˈɛɹi sˈæŋɡwɪn hˈoʊps ʌv səksˈɛs ɪnðɪ ɛkspˈɛɹɪmənt ðeɪ wɜː mˈeɪkɪŋ.