The steam that powered the industrial revolution turned into a speculative bubble for the American economy, when dozens of private companies spread kilometers of metal rails across the USA.
ماشين بخار که از عوامل انقلاب صنعتي بود... براي اقتصاد امريکا تبديل شد به حباب سوداگرانه وقتي که ده ها کمپاني خصوصي...