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These doors were spring-loaded and they'd automatically close
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Secrets of the Underground

These doors were spring-loadedand they'd automatically close

These doors were spring-loaded
and they'd automatically close

Full Transcript

00:00:01.000 --> 00:00:04.048
These doors were spring-loaded and they'd automatically close.
Duration
4 seconds
Views
14
Timestamp in Movie
00:12:35
Uploaded
Jul 13, 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 • E08 I have my GoPro right at the moment, - Secrets of the Underground 00:06
I have my GoPro right at the moment,
S01 • E03 And that blob looks a lot like a large air cavity in the earth, - Secrets of the Underground 00:08
And that blob looks a lot like a large air cavity in the ear...
S01 • E02 But at some point, the fuel in those generators would run out. - Secrets of the Underground 00:04
But at some point, the fuel in those generators would run ou...
S01 • E02 Geothermal power, however, is effectively unlimited. - Secrets of the Underground 00:05
Geothermal power, however, is effectively unlimited.
S01 • E03 Let me count in from the electrodes, - Secrets of the Underground 00:05
Let me count in from the electrodes,
S01 • E02 It could potentially run an underground site here indefinitely. - Secrets of the Underground 00:05
It could potentially run an underground site here indefinite...
S01 • E07 Where we've located toxic metals Coming out of the ground, - Secrets of the Underground 00:08
Where we've located toxic metals Coming out of the grou...
S01 • E01 And of course, you'd need an escape out of this room. - Secrets of the Underground 00:04
And of course, you'd need an escape out of this room.
S01 • E02 It's been suggested that this heating upgrade - Secrets of the Underground 00:09
It's been suggested that this heating upgrade
S01 • E08 This is exactly how I would picture myself escaping from Alcatraz. - Secrets of the Underground 00:05
This is exactly how I would picture myself escaping from Alc...
S01 • E01 Basically, the whole story starts in this room. - Secrets of the Underground 00:04
Basically, the whole story starts in this room.
S01 • E03 There's a very large resistive mass 20ft down. - Secrets of the Underground 00:05
There's a very large resistive mass 20ft down.
S01 • E01 Sealing the doors could buy Capone some time, - Secrets of the Underground 00:10
Sealing the doors could buy Capone some time,
S01 • E08 But I wouldn't get very far, - Secrets of the Underground 00:09
But I wouldn't get very far,
S01 • E07 So, are these two hot spots 15 miles apart. - Secrets of the Underground 00:04
So, are these two hot spots 15 miles apart.
S01 • E03 Yeah, and it needs to be big for the remains of 49 humans. - Secrets of the Underground 00:04
Yeah, and it needs to be big for the remains of 49 humans.
S01 • E02 But Doug says the new plant is just about saving money. - Secrets of the Underground 00:04
But Doug says the new plant is just about saving money.
S01 • E03 It's a geophysical anomaly that's perfectly consistent - Secrets of the Underground 00:05
It's a geophysical anomaly that's perfectly consis...
S01 • E01 Looking around the room, there don't appear to be any obvious exits. - Secrets of the Underground 00:05
Looking around the room, there don't appear to be any o...
S01 • E07 There is something Going on underneath here. - Secrets of the Underground 00:04
There is something Going on underneath here.