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Secrets of the Underground

But to confirmthese tunnels really keep going, I need to use some of the techI've brought...

But to confirm
these tunnels really keep going, I need to use some of the tech
I've brought with me

Full Transcript

00:00:01.000 --> 00:00:03.076
But to confirm these tunnels really keep going,
00:00:03.084 --> 00:00:06.068
I need to use some of the tech I've brought with me.
Duration
7 seconds
Views
11
Timestamp in Movie
00:08:01
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 Some of the rumours that were spreading at the time were that - Secrets of the Underground 00:10
Some of the rumours that were spreading at the time were tha...
S01 • E02 So now I'm beginning to wonder about another theory I've come across, - Secrets of the Underground 00:10
So now I'm beginning to wonder about another theory I&#...
S01 • E03 So, those eight were buried in a proper Irish-Catholic fashion, - Secrets of the Underground 00:05
So, those eight were buried in a proper Irish-Catholic fashi...
S01 • E07 In helium gases Prior to the blast. - Secrets of the Underground 00:05
In helium gases Prior to the blast.
S01 • E03 But Tim thinks that out of respect, - Secrets of the Underground 00:05
But Tim thinks that out of respect,
S01 • E01 GPR emits a pulse of electromagnetic energy into the wall. - Secrets of the Underground 00:04
GPR emits a pulse of electromagnetic energy into the wall.
S01 • E07 Often right before A volcano erupts, - Secrets of the Underground 00:06
Often right before A volcano erupts,
S01 • E01 The pulse bounced back to a receiver, - Secrets of the Underground 00:08
The pulse bounced back to a receiver,
S01 • E02 Sometimes called a COG site, - Secrets of the Underground 00:12
Sometimes called a COG site,
S01 • E08 On the other side of it, there was a water tank, a water cistern, - Secrets of the Underground 00:07
On the other side of it, there was a water tank, a water cis...
S01 • E03 Will our hi-tech tools finally reveal - Secrets of the Underground 00:05
Will our hi-tech tools finally reveal
S01 • E08 Just condensation coming through it cos there's a water tank there. - Secrets of the Underground 00:04
Just condensation coming through it cos there's a water...
S01 • E01 Almost immediately, - Secrets of the Underground 00:06
Almost immediately,
S01 • E03 If so, we'll be one big step closer to figuring out - Secrets of the Underground 00:09
If so, we'll be one big step closer to figuring out
S01 • E02 If that's true, - Secrets of the Underground 00:06
If that's true,
S01 • E01 You can see, reinforcement 3-6", - Secrets of the Underground 00:06
You can see, reinforcement 3-6",
S01 • E07 And later, I'll investigate An ancient irish ruin. - Secrets of the Underground 00:04
And later, I'll investigate An ancient irish ruin.
S01 • E02 In 1992, investigative reporters revealed a top-secret bunker system - Secrets of the Underground 00:11
In 1992, investigative reporters revealed a top-secret bunke...
S01 • E08 And the... prison administration liked it that way. - Secrets of the Underground 00:05
And the... prison administration liked it that way.
S01 • E03 Were they just victims of disease who were swept under the rug, - Secrets of the Underground 00:10
Were they just victims of disease who were swept under the r...