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Up until even the mid-20th Century out there
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Secrets of the Underground

Up until even the mid-20thCentury out there

Up until even the mid-20th
Century out there

Full Transcript

00:00:01.000 --> 00:00:04.033
Up until even the mid-20th Century out there.
Duration
4 seconds
Views
12
Timestamp in Movie
00:38:03
Uploaded
Jul 09, 2025
Season
1
Episode
7
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 The magnetometer hasn't turned up any evidence of burnt soil - Secrets of the Underground 00:11
The magnetometer hasn't turned up any evidence of burnt...
S01 • E03 The question is, what's going on beneath this rocky ridge? - Secrets of the Underground 00:05
The question is, what's going on beneath this rocky rid...
S01 • E03 I need a way to peer deep underground, - Secrets of the Underground 00:07
I need a way to peer deep underground,
S01 • E08 So it seems unlikely this hexagon of six rocks - Secrets of the Underground 00:06
So it seems unlikely this hexagon of six rocks
S01 • E01 So here we'd say there are far more particles that are small - Secrets of the Underground 00:06
So here we'd say there are far more particles that are ...
S01 • E07 From the period, it's probably A javelin or dart tip. - Secrets of the Underground 00:04
From the period, it's probably A javelin or dart tip.
S01 • E02 Another part of the serpent not visible above ground. - Secrets of the Underground 00:04
Another part of the serpent not visible above ground.
S01 • E03 He has some sophisticated tech - Secrets of the Underground 00:08
He has some sophisticated tech
S01 • E07 There are some fascinating Ancient finds here, - Secrets of the Underground 00:06
There are some fascinating Ancient finds here,
S01 • E08 The story behind these stones still eludes me, - Secrets of the Underground 00:07
The story behind these stones still eludes me,
S01 • E01 Then the bottom. - Secrets of the Underground 00:04
Then the bottom.
S01 • E07 Could have been lost Or overlooked. - Secrets of the Underground 00:04
Could have been lost Or overlooked.
S01 • E03 Seismic refraction gives us a snapshot of the substrate - Secrets of the Underground 00:08
Seismic refraction gives us a snapshot of the substrate
S01 • E01 All right. Basically, the ratio at the bottom - Secrets of the Underground 00:07
All right. Basically, the ratio at the bottom
S01 • E02 It's almost the exact same size and shape - Secrets of the Underground 00:07
It's almost the exact same size and shape
S01 • E07 Of 5th century artifact, What would you be looking for? - Secrets of the Underground 00:05
Of 5th century artifact, What would you be looking for?
S01 • E03 These pulses travel at different speeds - Secrets of the Underground 00:07
These pulses travel at different speeds
S01 • E08 I need to get a closer look, I'm gonna get my tablet out here. - Secrets of the Underground 00:04
I need to get a closer look, I'm gonna get my tablet ou...
S01 • E01 Jennifer says that this distribution, - Secrets of the Underground 00:10
Jennifer says that this distribution,
S01 • E07 Well, if you think Of that period in ireland, - Secrets of the Underground 00:05
Well, if you think Of that period in ireland,