The Erie Canal was mocked as a big ditch when it was started, but by the time it was completed in 1825 it was called an engineering marvel. Readers learn how engineers overcame a rise in elevation of 568 feet between the Hudson River and Lake Erie with locks and aqueducts to create a waterway that changed America.
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Limba Engleză ● Format PDF ● Pagini 32 ● ISBN 9781502629630 ● Editura Cavendish Square Publishing, LLC ● Publicat 2017 ● Descărcabil 3 ori ● Valută EUR ● ID 8672712 ● Protecție împotriva copiilor Adobe DRM
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