This diamond mine is located eastern Siberia is so deep that the surrounding "air zone... is closed for helicopters" after "a few accidents when they were 'sucked in' by downward air flow..."
Showing posts with label world's. Show all posts
Showing posts with label world's. Show all posts
Sunday, April 13, 2008
World's Largest Diamond Mine
This diamond mine is located eastern Siberia is so deep that the surrounding "air zone... is closed for helicopters" after "a few accidents when they were 'sucked in' by downward air flow..."
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