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It's an example of the way in which the castle design evolves to take account of particular weaknesses that had been identified in castles before
Full Transcript
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It's an example
00:00:02.174 --> 00:00:06.483
of the way in which the castle design evolves
00:00:06.483 --> 00:00:08.068
to take account of particular weaknesses
00:00:08.068 --> 00:00:11.964
that had been identified in castles before.
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Movie Summary
A fascinating look at how modern day structures and engineering technologies have been inspired by ancient discoveries.