At 04:16 AM 6/22/2011, Michele Comitini wrote:
Harry,
right: vapour is a gas. As it is O2. IMHO
the probe of Dr Galantini detects the liquid
phase of h2o or other liquid conductor
capacitor. It is not a chemical reactant that
binds to any h2o molecule that comes
around. Conductivity of gases is very low compared to liquids.
Do you see any specifications of the meter for
detecting the liquid phase? I've looked, it's missing.
The problem with this is that water would
condense on the probe. You would always see 100%
liquid water, if this is how it's being detected,
unless you preheated the probe. Tricky. There are
descriptions on-line of how to measure steam
quality, and this approach is not mentioned at all.
When you ask for tech specs of instruments used
by people that know how to make good experiments
search for the physical principles that is
behind the measure not the range or the main
field of application of an instrument. I bet
Galantini knows how that probe works inside quite well.
He might and he might not. It depends on his
specific experience. He might have never made a
measurement like this before, though he would
certainly understand the physics; he might simply
assume that g/m^3 referred to liquid water, without thinking much about it.
Do you see his actual measured values anywhere?
Seems to me I saw something somewhere.
