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The Tangential Impulse Water Wheel in California Gold Mining History—Part I
February 2004 by Guest Writer
The modern tangential impulse water wheel, a device best suited for hydroelectric power production where high water head is available, is an ingenious device born in the historic gold mining industry of California in the 19th Century.Additional articles that might interest you...
Legislative and Regulatory Update
July 2009
• Roadless Rule back in play
• Action needed on SB 670
• Abbey recommended to head BLM
• Capped and jobless
• S 787
• SB 796 & HR 699
• Roadless Rule back in play
• Action needed on SB 670
• Abbey recommended to head BLM
• Capped and jobless
• S 787
• SB 796 & HR 699
Ask The Experts
February 2016
Designing my own dredge...
Designing my own dredge...
A Changing Diamond Industry Looks to Canada for Growth
December 2000
Robert Gannicott speaks in almost spiritual tones about the position his small Canadian diamond company holds and the forces—both natural and economic—that put it there.
Robert Gannicott speaks in almost spiritual tones about the position his small Canadian diamond company holds and the forces—both natural and economic—that put it there.
Prospector's Guide to Rock Breaking and Blasting
December 2016
The holes were overloaded with explosives, but I didn’t know it. I was just a green mining engineer fresh out of school and told to watch as the experienced miners set the charge.
The holes were overloaded with explosives, but I didn’t know it. I was just a green mining engineer fresh out of school and told to watch as the experienced miners set the charge.
Picks & Pans: Diamond Hunting in Wyoming
January 2002
Rod Griffin and I have spent most of our free time looking for the hard-to-find diamonds, and have found ourselves involved with wildlife, obstacles, bad roads, streams, bogs, bulls—you name it.
Rod Griffin and I have spent most of our free time looking for the hard-to-find diamonds, and have found ourselves involved with wildlife, obstacles, bad roads, streams, bogs, bulls—you name it.
Melman on Gold & Silver
October 2015
Recent reports could be pointing toward a genuinely important change in direction for the American economy and it is a change that could be positive for the precious metals over time.
Recent reports could be pointing toward a genuinely important change in direction for the American economy and it is a change that could be positive for the precious metals over time.
Melman on Gold & Silver
May 2001
If this past month has proved anything, it is the reversible nature of the rule that “what goes up must come down” which now also can read “what goes down must come up.”
If this past month has proved anything, it is the reversible nature of the rule that “what goes up must come down” which now also can read “what goes down must come up.”
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