History -- Modern Marvels Dredging Format:DVD When Carla takes a trip

When Carla takes a trip to East Berlin with her father

they fight their way to a new life

To be or not to be

Natalie and Nick are frustrated with their luck in romance

History -- Modern Marvels Dredging Format:DVD When Carla takes a tripThey dig, scoop, suck, and spew an ocean of silt and sediment. Dredgers are the mechanical beasts that fuel the world's economic engine by clearing and deepening ports for mega container ships. The roots of dredging go back as far as the Egyptians, who used their hands to open channels on the Nile to keep crops watered. The Romans, who used harbor dredging to keep a tight fist on Europe, pioneered the "spoon and bag" dredge to speed up the process.