7 years ago
1
7 of the Deepest Holes Humanity Ever Dug
No one's managed to come out the other side, at least not yet.
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7.5 miles deep. Just think about it. That means you need a drill that is 7.5 miles long.
Plus I'd like to talk to the people working on this. "What is your job?" "I drill a hole in the ground. Been doing it for 20 years".