Friends,
It must be the rather dismal weather we are having at the moment!
Well, that's my excuse and I am sticking to it!
Tom Semadeni and Chris Lusby-Taylor both very politely pointed out
the fundamental error in my exposition of the 2-4 Law. Of course it
should have been "INVERSELY" proportional to the square of the
horizontal distance and the fourth power of the vertical distance.
No, I can't blame the weather, nor fall back on the old teacher's
trick of "Aha, I was waiting to see who spotted the deliberate
mistake". Not deliberate, just a mistake. But I imagine that the
world as any of us know it is not about to end.
BTW, I localised Bill's wonderful survival navigation method and sent
it off to an email list of ecologists. Brought some good responses,
including "we are too serious on this list, we need more stuff like
this!"
Cheers, John
Dr John Pickard
Senior Lecturer, Environmental Planning
Graduate School of the Environment
Macquarie University, NSW 2109 Australia
Phone + 61 2 9850 7981 (work)
+ 61 2 9482 8647 (home)
Fax + 61 2 9850 7972 (work)
