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By analysing how the electrical pulses
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Secrets of the Underground

By analysing howthe electrical pulses travel between various points, we can build a...

By analysing how
the electrical pulses travel between various points, we can build a picture of
how resistive the ground is, and identify any anomalies that
could be signs of a mass grave

Full Transcript

00:00:01.000 --> 00:00:02.092
By analysing how the electrical pulses
00:00:03.000 --> 00:00:04.096
travel between various points,
00:00:05.004 --> 00:00:07.096
we can build a picture of how resistive the ground is,
00:00:08.999 --> 00:00:11.002
and identify any anomalies that could be signs of a mass grave.
Duration
11 seconds
Views
17
Timestamp in Movie
00:10:56
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 • 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 • E03 We send currents through in all different directions, - Secrets of the Underground 00:05
We send currents through in all different directions,
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.
S01 • E08 I'm gonna use the camera to try to look around - Secrets of the Underground 00:06
I'm gonna use the camera to try to look around
S01 • E01 Al Capone would come to town - Secrets of the Underground 00:06
Al Capone would come to town
S01 • E03 And then we're going to be able to calculate from that - Secrets of the Underground 00:07
And then we're going to be able to calculate from that
S01 • E07 And in 1914 when alaska's Novarupta volcano erupted, - Secrets of the Underground 00:11
And in 1914 when alaska's Novarupta volcano erupted,
S01 • E01 And they would venture into the billiards room, - Secrets of the Underground 00:08
And they would venture into the billiards room,
S01 • E03 This is a great way to peer beneath the soil, - Secrets of the Underground 00:10
This is a great way to peer beneath the soil,
S01 • E08 The thermal camera will show these sources in varying shades of colour, - Secrets of the Underground 00:11
The thermal camera will show these sources in varying shades...
S01 • E01 The billiards room was well known as one of the best in the Midwest. - Secrets of the Underground 00:05
The billiards room was well known as one of the best in the ...
S01 • E07 So, could these fumaroles on Mammoth mountain be a dark omen. - Secrets of the Underground 00:05
So, could these fumaroles on Mammoth mountain be a dark omen...
S01 • E03 Because if the 49 workers were dug up - Secrets of the Underground 00:08
Because if the 49 workers were dug up
S01 • E01 Look at this wood! Oh my goodness. Wow. - Secrets of the Underground 00:05
Look at this wood! Oh my goodness. Wow.
S01 • E08 On a frigid night like tonight, - Secrets of the Underground 00:07
On a frigid night like tonight,
S01 • E01 This is now called the Oak Room, - Secrets of the Underground 00:06
This is now called the Oak Room,