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This is the same sort of camera that inspectors would use
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Secrets of the Underground

This is the same sort of camerathat inspectors would use to come in and look at buildings

This is the same sort of camera
that inspectors would use to come in and look at buildings

Full Transcript

00:00:01.000 --> 00:00:04.068
This is the same sort of camera that inspectors would use
00:00:04.076 --> 00:00:06.076
to come in and look at buildings.
Duration
7 seconds
Views
14
Timestamp in Movie
00:11:02
Uploaded
Jul 08, 2025
Season
1
Episode
8
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 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,
S01 • E03 During that period, they were exposed to the atmosphere, - Secrets of the Underground 00:08
During that period, they were exposed to the atmosphere,
S01 • E08 As I work my way along the dungeon's outer wall, - Secrets of the Underground 00:07
As I work my way along the dungeon's outer wall,