->  PQ> Ahh... but is it sand and dust flowing as if in a fluid motion?
 -> That's what I `saw' when their photos reached me - very common
 -> sight in the sand dunes at my favourite beach...
 DW> Sand and dust does that partly because air or other fluid gets between
 DW> the grains as they're moving, acting as a lubricant. It might not work
 DW> in the very rarified atmosphere of Mars.

I just noticed that this morning.  Wednedsay I burned a
pile of agricultural waste.  But November was the wettest
on record here.  Yesterday and today the ash pile was still
smoldering.  This morning I went out to stir it around and
expose some of it to air.  I noticed a similar effect to a
spring fluidizing the sand in the bottom of a pool.  Hot
air in this case.

Paul Rogers, paulgrogers{at}yahoo.com                       -o)
http://www.angelfire.com/or/paulrogers                   /\\
Rogers' Second Law: Everything you do communicates.     _\_V

... May you find the light and walk the mountain tops.
___ MultiMail/MS-DOS v0.35

---