Is that assuming 12 miles of water? Does it change things if you're under 12 miles of ice, whose density is less than 1 g/cc ? I'm not smart enough to figure that out...
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Reeve, Jack W. Sent: Thursday, May 30, 2002 11:46 AM To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: RE: Europa's ice thickness With Europa's 0.135 Earth gravity, and assuming the same 1.022 SG seawater density, excluding all other small variables, real pressure at 12 miles depth on Europa is equivalent to an Earth ocean depth of about 8550 feet, or 3790 Earth PSI, or around 23.8 Earth mPa. Jack -----Original Message----- From: Chris German [mailto:[EMAIL PROTECTED]] Sent: Thursday 30 May 2002 10:09 To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: Re: Europa's ice thickness >I read that in last week's Nature, Paul Schenk of the Lunar & Planetary >Institute estimates Europa's crust to be at least 12 miles deep. He >calculated >this on impact crater shapes. > >If 12 miles is the minimum depth of the ocean, would this pose a serious >engineering challenge for a submersible? > >== >You are subscribed to the Europa Icepick mailing list: [EMAIL PROTECTED] >Project information and list (un)subscribe info: http://klx.com/europa/ I wouldn't think so. We already have vehicles good to 6.5km on earth. My understanding is that the weaker gravity on Europa means the pressure gradients would also be weaker with depth in a Europan ocean - i.e. we would stay well within spec for pressure rated technologies we already have. -- _____________________ Prof. Chris German, MBE Southampton Oceanography Centre Tel: +44 (0)2380 596542 Southampton, SO14 3ZH, UK Fax: +44 (0)2380 596554 == You are subscribed to the Europa Icepick mailing list: [EMAIL PROTECTED] Project information and list (un)subscribe info: http://klx.com/europa/ == You are subscribed to the Europa Icepick mailing list: [EMAIL PROTECTED] Project information and list (un)subscribe info: http://klx.com/europa/ == You are subscribed to the Europa Icepick mailing list: [EMAIL PROTECTED] Project information and list (un)subscribe info: http://klx.com/europa/
