...but just look at the damn thing. These so called tubes are so obviously dunes, no amount of "sounding like you know what you are talking about" will make them otherwise.

The shadows match up and corroberate that they are sticking up out of a valley. They probably are not convex or concave, rather crescent shaped like most other wind-swept dunes on Mars and Earth (I'm not going to mention where on earth becase everybody has seen them). Study the images ajascent to the one in question and it is very clear.

The image at http://users.snip.net/~marsunearthed/tube_diagram.jpg is embarrassing to read. "OOO, OOO...it's a vent with a spiral ramp...on weeeed!"

I know mockery is not a very good way to argue, but arguing this topic only requires one to open their eyes and see.

• Blindness is No DEFENCE (HE's BAAAACK!) - tripp - July 11, 2001 - 02:28 UTC