Germany's political disunity—with 3 dozen states—and a pervasive conservatism produced it hard to Establish railways in the 1830s. On the other hand, from the 1840s, trunk lines connected the main cities; Each and every German point out was to blame for the lines in just its borders. Lacking a technological foundation at first, the Germans impo

The demand from customers for cotton presented an opportunity to planters within the Southern US, who thought upland cotton could well be profitable if a much better way might be identified to remove the seed.[63] Incredibly hot blast elevated the operating temperature of furnaces, increasing their ability. Utilizing less coal or coke intended intr