[talk-au] answers to difficult questions

[John Smith]

On 20 February 2010 00:05, Nick Hocking <nick.hocking at gmail.com> wrote:
> 1)  compass,gps, high school maths.
> 2) theodalite, professional gps and a real live surveyor.
> 4) laser rangefinder + gps

These are all the same method, just slightly different tools... and #4
still needs a direction/compass...

> 3) photographic techniques
> 5) audio tracking ???

How would either of these methods help?