X-Message-Number: 5890 Newsgroups: sci.cryonics,sci.life-extension From: (Brad Templeton) Subject: Re: Backup refrigeration Date: Fri, 1 Mar 1996 01:04:06 GMT Message-ID: <> References: <> In article <>, Dani Eder <> wrote: >I for one would like to see a storage facility located someplace permanently >cold, such as Alaska or Antarctica, as a safety precaution. That way in the >event your liquid nitogen supply fails, you have more time to deal with the >problem. I'm curious how cold you could get with "reverse solar energy". >Design a facility in Antarctica to reject sunlight (with reflective >surfaces on walls, since the sun never gets very high in the sky), while >losing as much heat as possible to space during the long winter nights. >I don't think you could get to 80K, but you should be able to get >Pretty Darn Cold. These cold places do not have regular LN2 delivery, or services, or even power in many cases, and you can't have staff there. In the antarctic you can only get in during the summer except at immense cost. And the temperature where we live -- 300K isn't far different from the say 230K to 250K temperature of the cold places on the planet, not compared to 80K. Being there is *so* expensive, particularly if there are staff, that it is cheaper to design other redundant systems, such as expensive solar, wind or water powered refrigeration. There is only one really good place probably, a lunar cavern, but I don't even know if that's cold enough, and it's out of cost range right now, but that might change in 20 to 30 years. -- Brad Templeton, publisher, ClariNet Communications Corp. The net's #1 E-Newspaper (1,200,000 paid sbscrbrs.) http://www.clari.net/brad/ Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=5890