The pulse bounced backto a receiver, and the speed and strengthof its return determinesthe...
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The pulse bounced back
to a receiver, and the speed and strength
of its return determines
the wall's density and thickness
to a receiver, and the speed and strength
of its return determines
the wall's density and thickness
Full Transcript
00:00:01.000 --> 00:00:03.056
The pulse bounced back
to a receiver,
00:00:03.064 --> 00:00:05.064
and the speed and strength
of its return
00:00:05.072 --> 00:00:07.088
determines
the wall's density and thickness.
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Movie Summary
Using cutting-edge technologies such as ground penetrating radar (GPR), LIDAR (Light Detection and Ranging), and 3-D imaging, scientists research fascinating underworlds of secret tunnel networks, ancient structures, and bizarre g...
