Modern Marvels

Earth Movers: The Power to Move Mountains (4x17)

Ημερομηνία προβολής: Οκτ 27, 1997

Feel the earth move under your feet and dig into the fascinating history of earthmoving equipment--from invention of the simple spade to today's powerful steam shovels. Meet the legendary giants like John Deere, Jerome Case, and the founders of Caterpillar, who helped forge America's monolithic construction industry.