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Unread 09-14-2002, 09:22 AM   #17
MadDogMe
Thermophile
 
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Join Date: Aug 2002
Location: Just shut up ;) ...
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Quote:
a few drops of dishwashing stuff (swiftech states that to be good to decrease water surface tension)
Washing up liquid is a 'Surfactant', but it Increases surface tension to the point that (strong!)bubbles can form!!...

AFAIK Mercury(when it expands) in a thermometre pushes red dye up the tube, so yes, they are 'little red temp gauges' ...
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