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    Re: GPS no substitute for common sense
    From: Fred Hebard
    Date: 2010 May 8, 07:51 -0400

    Assuming the route is perfectly circular, the difference would be 2pi
    multiplied by the distance between the two passageways.  If that
    distance is 15 feet, then about 94 feet.  I've not contemplated the
    effect of relaxing the circular assumption; don't believe the
    relaxation would affect the difference.
    On May 8, 2010, at 5:06 AM, Peter Fogg wrote:
    > You've got it,Fred!  But what is the difference in distance?  I've
    > seen the results of a few people having had a go at working it out,
    > but these results vary considerably.
    > On Sat, May 8, 2010 at 7:23 AM, Fred Hebard  wrote:
    > Do they drive on the left in Australia?  (bing!)
    > On May 7, 2010, at 4:32 PM, Peter Fogg wrote:
    > Highway 1 is a well trodden route.  These days hordes of grey
    > nomads make the big circuit.  Since these retirees may have a
    > limited budget, its worth remembering that making this
    > circumnavigation in an anti-clockwise direction is a shorter
    > alternative to going clockwise.
    > Why? How is this so?
    > (this is really easy but if a clue is needed, it can be found
    > within the photo showing the big screen)
    > For bonus points calculate the difference.

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