[TheForge] Way OT -- remote thermometer for river water

[peter fels]

One step farther;
Using roadkill steel, forge a bucket, in a forge fueled by methane generated in excrement holding tanks.
Lower on wire salvaged from steel-belt tires., etc.
On Apr 22, 2011, at 3:26 PM, Larry Brown wrote:

> 
> Green Version!
> Pick up empty beer or soda can off stream river bank (Should not be hard to 
> find in NJ), add small rocks, tie string to pull tab, drop in water, fill, 
> lift, insert thermometer, read, recycle can or use over ;-)
> Larry Brown
> 
> 
> 
> At 01:33 PM 4/22/2011 -0400, you wrote:
>> Bruce, Try this: put the thermometer in a vessel and drop it in for a
>> few minutes after it fills with water then do a fast retrieve with a rod
>> and reel. The thermal inertia of the water should maintain the
>> temperature long enough for a reading and not lose or gain enough to
>> matter.
>> 
>> -----Original Message-----
>> From: theforge-bounces at mailman.qth.net
>> [mailto:theforge-bounces at mailman.qth.net] On Behalf Of Bruce Freeman
>> Sent: Friday, April 22, 2011 1:24 PM
>> To: Blacksmithing List Sponsored by ABANA
>> Subject: [TheForge] Way OT -- remote thermometer for river water
>> 
>> I'm tapping the diverse knowledge of this group for a product I need.
>> 
>> I want to measure the temperature of the water in small rivers.  Purpose
>> -
>> kayaking.  I could get right up to some of these and just stick a
>> thermometer in them, but in most cases it would be a lot more convenient
>> to
>> drop a probe in from a bridge -- maybe 20' maximum distance.  But I
>> can't
>> just drop a thermometer into the water and pull it out from 20' above
>> and
>> get a reading -- the reading would change by the time I read it.
>> 
>> If they'd work, I could use a remote thermometer like this one --
>> http://www.harborfreight.com/non-contact-pocket-thermometer-93983.html
>> But
>> I don't know WHAT temperature I'd be measuring just pointing a device at
>> a
>> river.
>> 
>> Any thoughts as to what might work well for such an application?  I'd
>> need
>> accuracy within 2* or 3*F, nothing precision.
>> 
>> --
>> Bruce
>> NJ
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