> Where does the energy come from to warm the cold/liquified air? There are only three possible answers, ultimately:
1) The sun (solar, wind, hydro, fuels); 2) _A_ sun (nuclear fission, geothermal); 3) Orbital mechanics (tidal). -- Jim _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
