I was searching around on Youtube last night and found a cool video that i thought would fit very well on the forums, and i thought it was an entertaining little video.
What is the deepest hole we can possibly dig?
Full Version: How deep have humans dug down?
Colorado Prospector - Gem and mineral prospecting and mining forums > Prospecting, Mineral Collecting and Treasure Hunting Forums > Off Topic
That was interesting! 
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