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This data, along with our seismic test and underwater exploration
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Secrets of the Underground

This data, along with our seismictest and underwater exploration, also completes the...

This data, along with our seismic
test and underwater exploration, also completes the picture of how
the lake formed in the first place

Full Transcript

00:00:01.000 --> 00:00:04.056
This data, along with our seismic test and underwater exploration,
00:00:04.064 --> 00:00:08.006
also completes the picture of how the lake formed in the first place.
Duration
9 seconds
Views
14
Timestamp in Movie
00:42:24
Uploaded
Jul 13, 2025
Season
1
Episode
3
Genres
documentary

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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...
S01 • E02 But about a month ago, on the night of the summer solstice, - Secrets of the Underground 00:07
But about a month ago, on the night of the summer solstice,
S01 • E08 Anything to break the linearity - Secrets of the Underground 00:06
Anything to break the linearity
S01 • E07 Because if this turns Out to be true, - Secrets of the Underground 00:09
Because if this turns Out to be true,
S01 • E02 So, if you look right down the neck on the longest day of the year, - Secrets of the Underground 00:07
So, if you look right down the neck on the longest day of th...
S01 • E03 Thousands of years ago, a landslide, probably triggered by an earthquake, - Secrets of the Underground 00:13
Thousands of years ago, a landslide, probably triggered by a...
S01 • E08 I mean, you look at those and you wouldn't know necessarily it was anything. - Secrets of the Underground 00:05
I mean, you look at those and you wouldn't know necessa...
S01 • E01 But as the simulation speeds through the years of gopher activity, - Secrets of the Underground 00:10
But as the simulation speeds through the years of gopher act...
S01 • E02 Was this the ultimate purpose of Serpent Mound? - Secrets of the Underground 00:04
Was this the ultimate purpose of Serpent Mound?
S01 • E08 Many prey species that live in herds - Secrets of the Underground 00:08
Many prey species that live in herds
S01 • E02 For many corn-growing cultures like the Aztecs, - Secrets of the Underground 00:07
For many corn-growing cultures like the Aztecs,
S01 • E03 As the feeder stream carried branches and silt through this pile of rocks, - Secrets of the Underground 00:11
As the feeder stream carried branches and silt through this ...
S01 • E08 I grew up in Nebraska, and at cattle crossings - Secrets of the Underground 00:12
I grew up in Nebraska, and at cattle crossings
S01 • E02 The first full moon after the solstice - Secrets of the Underground 00:06
The first full moon after the solstice
S01 • E01 This is a randomised model. It looks... - Secrets of the Underground 00:05
This is a randomised model. It looks...
S01 • E02 And a successful corn harvest - Secrets of the Underground 00:06
And a successful corn harvest
S01 • E03 But that dam and this lake were never built to last. - Secrets of the Underground 00:05
But that dam and this lake were never built to last.
S01 • E08 The ancient hunters knew that they could suggest - Secrets of the Underground 00:08
The ancient hunters knew that they could suggest
S01 • E01 The model is showing me something that seemed so unlikely - Secrets of the Underground 00:15
The model is showing me something that seemed so unlikely
S01 • E02 They depended on being able to understand the cycles - Secrets of the Underground 00:07
They depended on being able to understand the cycles
S01 • E03 It's basically a rubble pile - Secrets of the Underground 00:06
It's basically a rubble pile