Re: pinhole Thermometer repair

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From: Geoff Ruth (gruth@leadershiphigh.org)
Date: Tue May 14 2002 - 08:06:35 PDT 

Message-Id: <a05010414b906d83636c1@[192.168.1.25]>
Date: Tue, 14 May 2002 08:06:35 -0700
From: Geoff Ruth <gruth@leadershiphigh.org>
Subject: Re: pinhole Thermometer repair

Create a very cold liquid by putting dry ice into a container of
acetone. Lower the thermometer into the liquid as far as it will go.
The mercury/alcohol will contract all the way into the bulb
(hopefully) where the two parts will (hopefully) rejoin.

I've found that this works about 2/3 of the time in repairing thermometers.

- Geoff

>I just ordered and received a great set of weather equipment to create a
>weather station at my school However, upon receipt, the max/min
>thermometer liquid (which appears to be mercury) has made bubbles in the
>tube and therefore reads about 8* off. My school secretary does not
>want to bother with returns/exchanges. Is there anything that can be
>done to reconnect the column of mercury? Any thoughts, however bizzare,
>are welcome.
>
>-- Adam Singer
> Gallinas K-8
>
>
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