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With ERT
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Secrets of the Underground

With ERT, a current is injected into the groundbetween a set of electrodes

With ERT, a current is injected into the ground
between a set of electrodes

Full Transcript

00:00:01.000 --> 00:00:02.008
With ERT,
00:00:02.016 --> 00:00:06.002
a current is injected into the ground between a set of electrodes.
Duration
6 seconds
Views
19
Timestamp in Movie
00:10:36
Uploaded
Jul 09, 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 I've just been denied access to the tunnels - Secrets of the Underground 00:07
But I've just been denied access to the tunnels
S01 • E07 Capable of suffocating Anyone who falls in their path. - Secrets of the Underground 00:05
Capable of suffocating Anyone who falls in their path.
S01 • E08 In an old structure like this prison basement, - Secrets of the Underground 00:07
In an old structure like this prison basement,
S01 • E01 I'm in Louisville, Kentucky, - Secrets of the Underground 00:05
I'm in Louisville, Kentucky,
S01 • E02 So I'm heading to another part of town - Secrets of the Underground 00:11
So I'm heading to another part of town
S01 • E03 And now we have this grid of electrodes - Secrets of the Underground 00:07
And now we have this grid of electrodes
S01 • E07 For people to die From something like that, - Secrets of the Underground 00:07
For people to die From something like that,
S01 • E01 I've uncovered two tunnels - Secrets of the Underground 00:08
I've uncovered two tunnels
S01 • E08 But I've got another toy in my toolkit - Secrets of the Underground 00:05
But I've got another toy in my toolkit
S01 • E03 We have 56 electrodes and we want to send electrical current - Secrets of the Underground 00:07
We have 56 electrodes and we want to send electrical current
S01 • E01 But to understand how he could have accessed them, - Secrets of the Underground 00:13
But to understand how he could have accessed them,
S01 • E02 I've got a contact that I'm going to meet - Secrets of the Underground 00:07
I've got a contact that I'm going to meet
S01 • E08 So, if I point over here at Stefan, - Secrets of the Underground 00:06
So, if I point over here at Stefan,
S01 • E03 By analysing how the electrical pulses - Secrets of the Underground 00:11
By analysing how the electrical pulses
S01 • E07 In fact, the only way to get To this thing is by skiing. - Secrets of the Underground 00:04
In fact, the only way to get To this thing is by skiing.
S01 • E08 This is the same sort of camera that inspectors would use - Secrets of the Underground 00:07
This is the same sort of camera that inspectors would use
S01 • E07 Fumaroles aren't uncommon In volcanically active areas. - Secrets of the Underground 00:05
Fumaroles aren't uncommon In volcanically active areas.
S01 • E01 So tell me a little bit more about Al Capone. - Secrets of the Underground 00:04
So tell me a little bit more about Al Capone.
S01 • E02 Capitol Spokesman Doug Platt will be my escort into the abyss. - Secrets of the Underground 00:05
Capitol Spokesman Doug Platt will be my escort into the abys...
S01 • E07 In fact, there are over 4,000 of them spewing steam. - Secrets of the Underground 00:04
In fact, there are over 4,000 of them spewing steam.