Whoops: Re: [NatureNS] Determining Elevation the hard way

Date: Wed, 21 Feb 2007 10:37:12 -0400
From: David & Alison Webster <dwebster@glinx.com>
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c.majka@ns.sympatico.ca wrote:

> Hi Virginia,
>
> On 16-Feb-07, at 8:09 PM, Virginia and Terry wrote:
>
>
>> In case anyone is wondering if 'others' are interested in the 
>> 'elevation' posts. I have read every single one from beginning to end 
>> and enjoyed them immensely. I did not understand a single thing 
>> except that I would like to see someone running up a hill with a 10 m 
>> high manometer. Will you please post when and where this is going to 
>> be attempted.
>>
>
> Brilliant suggestion! I just checked and there is no Guinness Book 
> record for this event so there exists a great possibility for Nova 
> Scotian's to make headlines with such a concept. Perhaps it should be 
> considered as an annual competative event ... ?
>
Hi Chris & All,                Feb 21, 2007
    Perhaps some local chapter of the Flat Earth Society would like to 
take this on. But they should first retain the services of some pressure 
group to do something about the vapor pressure of water; 12.8 mm Hg at 
15o C  as compared to vapor pressure of mercury at 16o C of 0.000846 mm.

    Speaking of cannons, the time it takes for a cannon ball, fired from 
a horizontal cannon, to hit the water could be used to measure 
elevation. From memory, elevation (z) in feet would be about  16 t^2, 
where t is time in seconds. But few would have the necessary hardware to 
use this procedure let alone the required precise timing device.

    And there is likely some government ordinance against unauthorized 
discharge of inordinately large ordnance.

Yt, DW

>
>> Steve Shaw wrote:
>>
>>
>
>>>  One of us is missing something, or as the schoolboy riddle goes, " 
>>> Two scotsmen are shouting across at each other from two tall 
>>> buildings, but can't ever agree on anything.  Why not?"**
>>>
>
> Very good: another possibility:
>
>
> Question: "If it would take a cannon-ball 3 1/3 seconds to travel four 
> miles, and 3 3/8 seconds
>
>  to travel the next four, and 3 5/8 to travel the next four, and if 
> its rate of progress
>
>  continued to diminish in the same ratio, how long would it take to go 
> fifteen
>
>  hundred million miles?" – Arithmeticus
>
>
> Answer: "I don't know." – Mark Twain (from "Answers to Correspondents")
>
>
> Cheers!
>
>
> Chris
>
> _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._.
>
> Christopher Majka - Nova Scotia Museum of Natural History
>
> 1747 Summer Street, Halifax, Nova Scotia, Canada   B3H 3A6
>
> (902) 424-6435   Email < c.majka@ns.sympatico.ca 
> <mailto:c.majka@ns.sympatico.ca> >
>
> _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._.
>
>



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