It's History
Why Pennsylvania's coal mine fire problems are here to stay forever (8x79)
Data emisji: Maj 26, 2022
Fires in coal mines have been a problem for Pennsylvania for decades. These fires are not only dangerous, but they also keep the mine from being profitable. We'll talk about the dangers of these fires, how they happen, and what can be done to prevent them.
- Premiera: Lis 2014
- Odcinki: 473
- Obserwujący: 2
- Trwający
- YouTube
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