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Maple Leaf This item is only available for Canadian orders.
This title is a part of the series How Did They Build That?

Catalogue Number:  393721
ISBN Number:  978-1-4213-4631-1
Producer:  Films Media Group
Subject:  Engineering
Language:  English
Grade Level:  9 - 12, Post Secondary
Country Of Origin:  U.S.
Copyright Year:  1998
Running Time:  24

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This video examines how the need to protect communities from external threats over the centuries has given the engineer a crucial role on which lives depend. Viewers will travel from a medieval castle in Scotland to a citadel in southern France before looking at the modern defenses used to protect the population from the sea.

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