Modern Marvels
Silver Mines (3x3)
Ausstrahlung: Okt 01, 1995
It was called the "mother lode", a deposit of silver so massive that it would produce $300-million in its first 25 years of operation, establish Nevada as a state, and bankroll the Union Army in the Civil War. Named after an early investor, we'll see how the Comstock Lode, discovered near Virginia City, proved to be a scientific laboratory from which vast improvements in mining technology and safety were pioneered, including innovations in drilling, ventilation, drainage, and ore processing.
- Premiere: Nov 1992
- Episoden: 852
- Anhänger: 75
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- History
- Sonntag um 22