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Something New know your world general knowledge friends mails mailstuffs good information Know your world better
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The deepest hole ever drilled by man is the
Kola Superdeep Borehole, in Russia.
It reached a depth of 12,261 meters
(about 40,226 feet or 7.62 miles).
It was drilled for scientific research
and gave up some unexpected discoveries,
one of which was a huge deposit of hydrogen
- so massive that the mud coming from the hole
was boiling with it.
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