From: ptrei@acm.org   
      
   Thanks, that makes sense.   
   Peter Trei   
      
      
   Mike Herron wrote:   
      
   > The wheels have a pattern in one spot that was machined into the wheel   
   > give them a place to attach to the lander during cruise and landing.   
   >   
   > In article ,   
   >  Peter Trei  wrote:   
   >   
   > > Looking at the Mars Rover tracks, I notice that at   
   > > regular intervals a few feet apart, the treadmarks   
   > > left in the dust are disturbed for a few inches before   
   > > continuing again.   
   > >   
   > > Are the treads different at one point in their   
   > > circumference? Is the rover skidding to a halt   
   > > every few feet?   
   > >   
   > > Incquiring minds want to know....   
   > >   
   > > See:   
   > > http://photojournal.jpl.nasa.gov/jpeg/PIA05291.jpg   
   > >   
   > > Peter Trei   
   > >   
      
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