-> FWIW: we've discussed your theory as well as the other one in which the 
-> station's belly always points to the earth...  
   
 DW> Another thing... Think of the solar panels on the space station.
 DW> For  good efficiency, they always have to aim at the sun. But if
 DW> the station  were rotating, the panels would have to be on fancy
 DW> pivots so as to  turn to keep facing the sun. They aren't, so they
 DW> don't, so it isn't.    

uh... actually they are on "fancy" pivots... they rotate 360
around the axis of the station and they can also rotate at least 180
degrees on their own axis... yeah... they are like great big paddle wheels
with variable pitch...

 DW> Maybe it rotates once per year, to keep the panels aligned, but
 DW> that's  very different from once every 90 minutes! 

try all the time ;)

)\/(ark