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Insar, or interferometric Synthetic aperture radar
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Secrets of the Underground

Insar, or interferometricSynthetic aperture radar, Is a a type of remoteSensing technology

Insar, or interferometric
Synthetic aperture radar, Is a a type of remote
Sensing technology

Full Transcript

00:00:01.000 --> 00:00:04.096
Insar, or interferometric Synthetic aperture radar,
00:00:04.097 --> 00:00:07.073
Is a a type of remote Sensing technology.
Duration
8 seconds
Views
17
Timestamp in Movie
00:17:48
Uploaded
Jul 08, 2025
Season
1
Episode
7
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 Peter has been using cutting-edge technology - Secrets of the Underground 00:07
Peter has been using cutting-edge technology
S01 • E03 As Janet explains, - Secrets of the Underground 00:08
As Janet explains,
S01 • E02 It looks like it was designed as a barrier to block the tunnel. - Secrets of the Underground 00:04
It looks like it was designed as a barrier to block the tunn...
S01 • E08 These brand-new maps can dissect the complex layers of history - Secrets of the Underground 00:09
These brand-new maps can dissect the complex layers of histo...
S01 • E07 Of radiation on the target, - Secrets of the Underground 00:06
Of radiation on the target,
S01 • E02 To find out, we're going to use what's called sonic echo testing. - Secrets of the Underground 00:05
To find out, we're going to use what's called soni...
S01 • E03 Basically, what's happening is these Irish folks come into town, - Secrets of the Underground 00:07
Basically, what's happening is these Irish folks come i...
S01 • E01 Each modest-looking home had a bathtub - Secrets of the Underground 00:05
Each modest-looking home had a bathtub
S01 • E02 By sending a sound wave into the wall and reading the echo, - Secrets of the Underground 00:09
By sending a sound wave into the wall and reading the echo,
S01 • E08 This is exactly what I've been looking for, - Secrets of the Underground 00:07
This is exactly what I've been looking for,
S01 • E01 The tunnels linked up with the public sewage system, - Secrets of the Underground 00:15
The tunnels linked up with the public sewage system,
S01 • E03 They're Catholic and this is, you know, - Secrets of the Underground 00:07
They're Catholic and this is, you know,
S01 • E07 And one of the most troubling Areas insar has pinpointed. - Secrets of the Underground 00:04
And one of the most troubling Areas insar has pinpointed.
S01 • E08 Let's see. So, what we've been doing is digitising the maps. - Secrets of the Underground 00:04
Let's see. So, what we've been doing is digitising...
S01 • E07 Happens to be very close To mammoth lakes. - Secrets of the Underground 00:04
Happens to be very close To mammoth lakes.
S01 • E02 So, we have the mallet. We're gonna bang the wall, - Secrets of the Underground 00:10
So, we have the mallet. We're gonna bang the wall,
S01 • E03 But was mere intolerance enough of a motivation for mass murder? - Secrets of the Underground 00:05
But was mere intolerance enough of a motivation for mass mur...
S01 • E08 That way we were able to overlay all of them on top of each other - Secrets of the Underground 00:07
That way we were able to overlay all of them on top of each ...
S01 • E07 Wow, look at that. Resurgent dome, - Secrets of the Underground 00:05
Wow, look at that. Resurgent dome,
S01 • E01 In 2013, the Chicago Crime Commission named Guzman Public Enemy No.1. - Secrets of the Underground 00:07
In 2013, the Chicago Crime Commission named Guzman Public En...