[time-nuts] Slightly OT - GPS-Based Accurate Direction Finding

[Bob Camp]

Hi

I suspect that the term fire tower was being used in the generic sense. More or less any tower with a deck on a hill top is a fire tower. 

Bob


On Aug 27, 2010, at 8:50 AM, "gonzo ." <cadbloke at hotmail.com> wrote:

> 
> All the fire towers I've been in have a plumb line in the centre of the room and circular graduated ring above window height.
> When the spotter sees something of interest, all (s)he has to do is stand behind the string and make a report.
> 
> ian
> 
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