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So here we'd say there are far more particles that are small
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Secrets of the Underground

So here we'd say there are far moreparticles that are small than there are large

So here we'd say there are far more
particles that are small than there are large

Full Transcript

00:00:01.000 --> 00:00:03.084
So here we'd say there are far more particles that are small
00:00:03.092 --> 00:00:05.072
than there are large.
Duration
6 seconds
Views
20
Timestamp in Movie
00:38:15
Uploaded
Jul 09, 2025
Season
1
Episode
1
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 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,
S01 • E02 It's only showing up in the magnetometer data here for the first time. - Secrets of the Underground 00:05
It's only showing up in the magnetometer data here for ...
S01 • E08 If I just kind of outline these indentations, - Secrets of the Underground 00:08
If I just kind of outline these indentations,
S01 • E03 We'll measure the speed of these pulses with geophones - Secrets of the Underground 00:07
We'll measure the speed of these pulses with geophones
S01 • E02 This is probably an ancient part of the serpent that was erased - Secrets of the Underground 00:08
This is probably an ancient part of the serpent that was era...
S01 • E01 Well, in an earthquake prone area like here, - Secrets of the Underground 00:06
Well, in an earthquake prone area like here,
S01 • E08 A stripe there, a stripe down this way... - Secrets of the Underground 00:05
A stripe there, a stripe down this way...