10-27-2010, 02:14 AM
No, in addition to curving on the way down, the hole had to make several turns to follow the pilot hole. Maybe corkscrew is an exaggeration, but still, to make bends in the hole on the way down is still impressive.
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PBS/NOVA show about the mine rescue in Chile tonight
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PBS/NOVA show about the mine rescue in Chile tonight - by ztirffritz - 10-27-2010, 01:52 AM
Re: PBS/NOVA show about the mine rescue in Chile tonight - by Mini 9 - 10-27-2010, 02:04 AM
Re: PBS/NOVA show about the mine rescue in Chile tonight - by GGD - 10-27-2010, 02:08 AM
Re: PBS/NOVA show about the mine rescue in Chile tonight - by ztirffritz - 10-27-2010, 02:14 AM
Re: PBS/NOVA show about the mine rescue in Chile tonight - by pinkoos - 10-27-2010, 03:07 AM
Re: PBS/NOVA show about the mine rescue in Chile tonight - by Don C - 10-27-2010, 04:21 AM
Re: PBS/NOVA show about the mine rescue in Chile tonight - by Mini 9 - 10-27-2010, 09:40 AM
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