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So, stone would make a radar anomaly like that
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Secrets of the Underground

So, stone would makea radar anomaly like that

So, stone would make
a radar anomaly like that

Full Transcript

00:00:01.000 --> 00:00:05.024
So, stone would make a radar anomaly like that.
Duration
5 seconds
Views
20
Timestamp in Movie
00:34:58
Uploaded
Jul 13, 2025
Season
1
Episode
2
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 • E03 I think the next step is to get some sort of flow meter in there - Secrets of the Underground 00:07
I think the next step is to get some sort of flow meter in t...
S01 • E02 These findings won't help us determine - Secrets of the Underground 00:08
These findings won't help us determine
S01 • E01 People put steel filings in to make pretty patterns if you shake it, - Secrets of the Underground 00:07
People put steel filings in to make pretty patterns if you s...
S01 • E08 And archaeological evidence suggests this area was inhabited - Secrets of the Underground 00:08
And archaeological evidence suggests this area was inhabited
S01 • E07 I'm in the small town Of groton, connecticut, - Secrets of the Underground 00:05
I'm in the small town Of groton, connecticut,
S01 • E03 What we're gonna want you to do is get this positioned - Secrets of the Underground 00:06
What we're gonna want you to do is get this positioned
S01 • E01 If you shake it, it doesn't just shift in little piles, easily. - Secrets of the Underground 00:05
If you shake it, it doesn't just shift in little piles,...
S01 • E08 But most striking are the images from our ROV camera that show - Secrets of the Underground 00:09
But most striking are the images from our ROV camera that sh...
S01 • E02 Since the majority of the mounds constructed by the Adena - Secrets of the Underground 00:08
Since the majority of the mounds constructed by the Adena
S01 • E07 It may seem a bit unbelievable, - Secrets of the Underground 00:06
It may seem a bit unbelievable,
S01 • E01 And you've never seen anything like that from seismic activity? - Secrets of the Underground 00:05
And you've never seen anything like that from seismic a...
S01 • E03 By measuring the velocity of the fluid over a known area, - Secrets of the Underground 00:09
By measuring the velocity of the fluid over a known area,
S01 • E08 Could this be some of America's oldest artwork? - Secrets of the Underground 00:04
Could this be some of America's oldest artwork?
S01 • E02 According to Jarrod, using rocks mixed with soil - Secrets of the Underground 00:13
According to Jarrod, using rocks mixed with soil
S01 • E07 I have never seen anything Like this in my whole life. - Secrets of the Underground 00:04
I have never seen anything Like this in my whole life.
S01 • E01 John tells me that earthquakes can reshape the land in various ways. - Secrets of the Underground 00:06
John tells me that earthquakes can reshape the land in vario...
S01 • E07 There are two stone chambers On the gungywamp grounds. - Secrets of the Underground 00:04
There are two stone chambers On the gungywamp grounds.
S01 • E01 They can cause the earth to crack open, - Secrets of the Underground 00:07
They can cause the earth to crack open,
S01 • E07 To early christian chapels On the emerald isle. - Secrets of the Underground 00:04
To early christian chapels On the emerald isle.
S01 • E02 Not for burials, but quite possibly to worship the serpent. - Secrets of the Underground 00:05
Not for burials, but quite possibly to worship the serpent.