Noticed a strange phenomena.
While heating up a small pot of water, I noticed that when the input flame was low, there was plenty of steam coming off the surface; but when I turned up the flame, the steam disappeared. That is opposite to what I expected.
A perfect "“can you explain this” challenge for the citizen scientist.
Dry steam is a gas that does not diffuse light.
Wet steam from a slower rate of boiling, has micro-droplets of entrained water which diffuse light and can be 'seen'
Hypothesis ...
Steam is water vapour that can condense back into droplets (vesicles in Gerald Pollack terminology) on contact with the cooler ambient air. Easier to form vesicles if a higher density of vapour falls below boiling point.
High temperature vapour moves further out in the room before cooling and therefore does not have the density to condense into droplets.