GPS for birders and accuracy

[brian fleming <>]

 wrote:

> The same caveat about knowing how to use it applies to older 
> technology like compasses and topo maps. I was once in a fairly remote 
> part of Australia about twenty years ago and could not convince a 
> maths graduate that recording positions to the second of a degree was 
> beyound the accurracy of the tools at our disposal, a 1:100 000 map 
> and a ruler!
I have seen a planting instruction for seeds -"spacing 76.2 mm"! The old 
(Imperial)  packet said "3 inch."
Always engage the brain before any thing else.

Brian Fleming
Melbourne

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