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As welds cool, they give off hydrogen
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Engineering Catastrophes

As welds cool,they give off hydrogen. It's just part of the processof the melting of the...

As welds cool,
they give off hydrogen. It's just part of the process
of the melting of the steel. So if the welds
are not cooled properly, then hydrogen can get
trapped within the weld and can lead to just
a very small fracture. {\an8}This bridge seemingly had
a flaw in it from the get-go

Full Transcript

00:00:01.000 --> 00:00:04.133
As welds cool, they give off hydrogen.
00:00:04.133 --> 00:00:07.006
It's just part of the process of the melting of the steel.
00:00:07.006 --> 00:00:10.009
So if the welds are not cooled properly,
00:00:10.009 --> 00:00:13.233
then hydrogen can get trapped within the weld
00:00:13.233 --> 00:00:16.399
and can lead to just a very small fracture.
00:00:16.399 --> 00:00:20.008
{\an8}This bridge seemingly had a flaw in it from the get-go.
Duration
22 seconds
Views
10
Timestamp in Movie
00:11:33
Uploaded
Oct 28, 2025
Season
6
Episode
4
Genres
documentary
Production
Moviecoop

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Movie Summary

With access to all phases of design and a large cast of experts, some of the great failures of engineering history are uncovered.
S06 • E07 NARRATOR: There is hope that a change in - Engineering Catastrophes 00:07
NARRATOR: There is hope that a change in
S06 • E09 So even though they had designed the bridge for scour, - Engineering Catastrophes 00:07
So even though they had designed the bridge for scour,
S06 • E07 The solution is taking legacy industrial plants, like this, - Engineering Catastrophes 00:12
The solution is taking legacy industrial plants, like this,
S06 • E09 NARRATOR: With the cause known, - Engineering Catastrophes 00:10
NARRATOR: With the cause known,
S06 • E02 [narrator] South Padre islan sits on the Gulf of Mexico. - Engineering Catastrophes 00:40
[narrator] South Padre islan sits on the Gulf of Mexico.
S06 • E10 And all of it was pinned in on an electrical substation - Engineering Catastrophes 00:45
And all of it was pinned in on an electrical substation
S06 • E08 The feature of this one here is it only had 6 millimeter spiral. - Engineering Catastrophes 00:05
The feature of this one here is it only had 6 millimeter spi...
S06 • E01 [narrator] That explained the cause of the blast, - Engineering Catastrophes 00:22
[narrator] That explained the cause of the blast,
S06 • E03 [narrator] For more than a decade, - Engineering Catastrophes 00:24
[narrator] For more than a decade,
S06 • E09 This time, changes would be made - Engineering Catastrophes 00:08
This time, changes would be made
S06 • E08 So it's a very thin wire, - Engineering Catastrophes 00:10
So it's a very thin wire,
S06 • E07 NARRATOR: Big infrastructure can be key - Engineering Catastrophes 00:06
NARRATOR: Big infrastructure can be key
S06 • E04 {\an8}And with over 20 million vehicles a year testing the welds, - Engineering Catastrophes 00:19
{\an8}And with over 20 million vehicles a year testing the w...
S06 • E09 One of the things that is going to prevent this - Engineering Catastrophes 00:09
One of the things that is going to prevent this
S06 • E08 Essentially, the columns weren't up to the job that they were designed for, - Engineering Catastrophes 00:08
Essentially, the columns weren't up to the job that the...
S06 • E07 But when trouble strikes, - Engineering Catastrophes 00:07
But when trouble strikes,
S06 • E06 Just as the crane starts tipping, - Engineering Catastrophes 00:09
Just as the crane starts tipping,
S06 • E05 [narrator] On the southern edge of Spain, along the Costa Tropical, - Engineering Catastrophes 00:18
[narrator] On the southern edge of Spain, along the Costa Tr...
S06 • E09 Now it has a much wider width that it can flow through - Engineering Catastrophes 00:11
Now it has a much wider width that it can flow through
S06 • E08 It's gonna drag all the other ones down with it. - Engineering Catastrophes 00:24
It's gonna drag all the other ones down with it.