----- Original Message ----- From: "Erik Reuter" <[EMAIL PROTECTED]> To: "Killer Bs Discussion" <[EMAIL PROTECTED]> Sent: Saturday, July 19, 2003 12:24 PM Subject: Re: Irregulars query: air pressure in spinning habitats
> On Sat, Jul 19, 2003 at 11:31:54AM -0500, Ronn!Blankenship wrote: > > > Actually, it is because the soil is a _poor_ conductor of heat, so > > it doesn't warm up rapidly in the summer or cool off rapidly in the > > winter, so > > Actually, no, it is not conductivity that primarily determines how > rapidly something warms up with heat flow, it is heat capacity and mass. Ronn's closer to right on this than you are. There is no arguing that heat capacity has something to do with this phenomenon, but I see Ronn's statement relating to the long term lack of thermal equilibrium. For example, we can have the air temperature falling below 0F, while the frost line in the ground is very shallow So, since the essence of the condition he was describing is the long time it takes to reach thermal equilibrium; the best single thing to cite is the poor conductivity. Dan M. _______________________________________________ http://www.mccmedia.com/mailman/listinfo/brin-l
