A post that's over dew (#water from air)

​I discovered several interesting bits of knowledge about dew and dew condensers in this article by a team of dew researchers:

Beysens, D., Milimouk, I., Nikolayev, V. S., Berkowicz, S., Muselli, M., Heusinkveld, B. & Jacobs, A. F. G. 2006. Comment on "The moisture from the air as water resource in arid region: Hopes, doubt and facts" by Kogan and Trahtman. Journal of Arid Environments 67(2), 343–352.

Here are the bits I chose to highlight:

• "…there is no standard instrument for measuring dew…";
• "…the greater the heat capacity of a condenser, the poorer the potential water yield…";
• Dew collection works best with windspeeds less than 3 m/s;
• Although dew is essentially distilled water, its chemistry is affected by substances residing on the dew collection surface;
• Stone heaps in Feodosia, Ukraine, that have been referred to in many publications as being passive dew condensers are, "…just the remains of Greek or Scythian tombs"; and
• "…radiation-cooled light condensers are presently being used in Corsica island (France), Bisevo island (Croatia), Jerusalem (Israel) and Kothara (India)…" [at the time of publication in 2006].