The 'tendency' of electrons is encouraged by the 'pull' of the moon to be slightly more active and energetic... especially in water molecules... which causes atomic expansion as the empty space of the atom increases in volume... It is, perhaps, this exact phenomenon, in cyclical regularity... that created life in the first place... Well... MAYBE!!!!

Actually, the pull, seems to effect the heavier more fluid elements faster. In this case, liquid is more affected that gas... is this right? ttr