To watch in HD, get ClipCafe PRO
And he's been able to uncover clues beneath its surface
Please log in to add to collections.
Secrets of the Underground

And he's been able touncover clues beneath its surface that no-one has seen before

And he's been able to
uncover clues beneath its surface that no-one has seen before

Full Transcript

00:00:01.000 --> 00:00:03.088
And he's been able to uncover clues beneath its surface
00:00:03.096 --> 00:00:05.008
that no-one has seen before.
Duration
6 seconds
Views
21
Timestamp in Movie
00:28:58
Uploaded
Jul 10, 2025
Season
1
Episode
2
Genres
documentary

Want This Clip in HD?

Upgrade for HD/4K downloads and unlimited access. Upgrade now →

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 If you look at this rock, - Secrets of the Underground 00:09
If you look at this rock,
S01 • E01 It's called electrical resistivity tomography, or ERT. - Secrets of the Underground 00:05
It's called electrical resistivity tomography, or ERT.
S01 • E02 Yet, even he still has a lot to learn about the true purpose - Secrets of the Underground 00:06
Yet, even he still has a lot to learn about the true purpose
S01 • E07 So essentially what We're looking for is the sun. - Secrets of the Underground 00:04
So essentially what We're looking for is the sun.
S01 • E01 ERT is an advanced subsurface imaging technique - Secrets of the Underground 00:07
ERT is an advanced subsurface imaging technique
S01 • E08 Been much higher, and then much lower, - Secrets of the Underground 00:06
Been much higher, and then much lower,
S01 • E03 Scree is a collection of broken rock fragments at the base of mountains or valleys - Secrets of the Underground 00:11
Scree is a collection of broken rock fragments at the base o...
S01 • E01 It works by injecting electrical current into the ground - Secrets of the Underground 00:12
It works by injecting electrical current into the ground
S01 • E02 That's been the challenge for the last 200 years, - Secrets of the Underground 00:06
That's been the challenge for the last 200 years,
S01 • E08 Brian explains that when the glaciers from the last ice age began to melt, - Secrets of the Underground 00:07
Brian explains that when the glaciers from the last ice age ...
S01 • E02 It's probably the most well-known mound - Secrets of the Underground 00:07
It's probably the most well-known mound
S01 • E03 And it could be another clue about the disappearance of the lake. - Secrets of the Underground 00:05
And it could be another clue about the disappearance of the ...
S01 • E08 But when the melting ice exposed a new channel to the St Lawrence River, - Secrets of the Underground 00:08
But when the melting ice exposed a new channel to the St Law...
S01 • E01 Since the conductivity of various materials is different, - Secrets of the Underground 00:12
Since the conductivity of various materials is different,
S01 • E02 Several different native tribes - Secrets of the Underground 00:11
Several different native tribes
S01 • E07 Of this chamber Hovering in the sky above? - Secrets of the Underground 00:04
Of this chamber Hovering in the sky above?
S01 • E07 As the sun rises... Wow, look at that. - Secrets of the Underground 00:04
As the sun rises... Wow, look at that.
S01 • E03 It looks a little bit like the sides of some of the hills in the Grand Canyon. - Secrets of the Underground 00:05
It looks a little bit like the sides of some of the hills in...
S01 • E08 We know for sure that 10,500 years ago, - Secrets of the Underground 00:14
We know for sure that 10,500 years ago,
S01 • E02 So, there is still a debate about who built the mound and why. - Secrets of the Underground 00:05
So, there is still a debate about who built the mound and wh...