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The tunneling machines operate completely independent from humans, so they're guided by GPS systems that position them precisely, even though they're below the ground
Full Transcript
00:00:01.000 --> 00:00:04.032
The tunneling machines operate completely independent
00:00:04.032 --> 00:00:07.718
from humans, so they're guided by GPS systems
00:00:07.718 --> 00:00:09.079
that position them precisely,
00:00:09.079 --> 00:00:12.033
even though they're below the ground.
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Movie Summary
A fascinating look at how modern day structures and engineering technologies have been inspired by ancient discoveries.