Cranes Modern Marvels : Season 8 Episode 42
TV-PG History 1h 00m int(0)
Aired: October 22nd, 2002 @ 10:00 PM EST on History
One of the most useful machines ever created, the crane is a simple but important combination of the pulley and the lever. Though cranes have been helping us build civilization from at least the time of the Egyptian pyramids, the modern steel-framed construction cranes are a relatively recent development. Put on your work boots as we ride through the history of cranes from ancient days to skyscraper construction sites, ocean-freighter docks, and the International Space Station.