I don't know ow they are made but I do know that you should always but
thermometers in the summer time. That you way you get a lot more
mercury for your buck!

Errol


On 14 Jan 2005 03:08:35 GMT, Ignoramus30333
wrote:

I bought a $3 regular thermometer at Walmart today and am marveling at
the precision that it required to make. How do they make thermometers
with such an inner diameter of the tube, and how do they fill it so
accurately? This is, also, quite old technology, so it must be rather
simple.

i