On Mon, 12 May 2008, Sean Houtman wrote:
> ctbishop@[EMAIL PROTECTED]
(Charles Bishop) wrote in
> news:ctbishop-1005080303360001@[EMAIL PROTECTED]
> 4.246.39.11.dial1.sanjose1.level3.n
> et:
>
>>>>> Or the Bay Area. I have 15" charts from the ocean to Sacramento &
>>>>> Srockton, Santa Rosa to Santa Cruz. Even at $cheap/ea, I got a
>>>>> lotta bux in 'em!
>>>>
>>>> I once bought a 1' = 1' map, but had to give it away. It was too
>>>> much trouble to unfold.
>>>
>>>
>>> I know you know this, but that's a 15 minute chart.
>>
>> Admitting presence of whoosh, but I didn't know that, nor what it
>> means.
>>
>
> The " can mean a quote mark, or indicate minutes of arc. A 15 minute map
> includes one quarter of a degree of latitude and longitude.
"[...] or indicate seconds of arc." a single quote mark indicates
minutes, a double quote mark indicates seconds.
359d 59' 59"
--
"Thank heavens I'm atheist, otherwise I'd be in fear of going
to hell." Veronique explains comparative religion.
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