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Currents flow easily
through damp soil, but are resistive when
passing through large voids
through damp soil, but are resistive when
passing through large voids
Full Transcript
00:00:01.000 --> 00:00:03.000
Currents flow easily
through damp soil,
00:00:03.008 --> 00:00:06.044
but are resistive when
passing through large voids.
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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...