studiot Posted yesterday at 05:22 PM Posted yesterday at 05:22 PM Quote https://www.bbc.co.uk/news/articles/cvgw3l7p79po Capturing water from fog - on a large scale - could provide some of the driest cities in the world with drinking water. This is what researchers in Chile have concluded after studying the potential of fog harvesting in the desert city of Alto Hospicio in the north of the country. Average rainfall in the region is less than 0.19in (5mm) per year. "Like a lot of cities, Alto Hospicio has its social problems," said lead researcher Dr Virginia Carter Gamberini, from Universidad Mayor. "There is a lot of poverty", she explained, and many people there have no direct access to the networks that supply clean water. Many who live in the city's poorest communities rely on drinking water that is delivered by truck. However, clouds of fog that regularly gather over the mountain city are an untapped source, researchers say. 1
Sensei Posted yesterday at 06:01 PM Posted yesterday at 06:01 PM Quote Fog harvesting could provide water for arid cities ..except that it was in Dune.. https://en.wikipedia.org/wiki/Dune_(novel) Windtrap/wind catcher https://dune.fandom.com/wiki/Windtrap Quote The air of Arrakis was usually hot and dry. However, at night, when the air cooled, some moisture would develop. This moisture would then be carried by winds across the surface of the planet. Essentially a large air intake, the windtraps would capture this air so that the moisture could be extracted from it by the Fremen, after it condensed.
exchemist Posted yesterday at 07:27 PM Posted yesterday at 07:27 PM 2 hours ago, studiot said: Quote https://www.bbc.co.uk/news/articles/cvgw3l7p79po Capturing water from fog - on a large scale - could provide some of the driest cities in the world with drinking water. This is what researchers in Chile have concluded after studying the potential of fog harvesting in the desert city of Alto Hospicio in the north of the country. Average rainfall in the region is less than 0.19in (5mm) per year. "Like a lot of cities, Alto Hospicio has its social problems," said lead researcher Dr Virginia Carter Gamberini, from Universidad Mayor. "There is a lot of poverty", she explained, and many people there have no direct access to the networks that supply clean water. Many who live in the city's poorest communities rely on drinking water that is delivered by truck. However, clouds of fog that regularly gather over the mountain city are an untapped source, researchers say. Expand Very interesting indeed. Lovely to see a simple idea like this can be practical. However it has to be recognised that this only works where there are regular fogs. The W coast of S America is special in that it has the cold Humboldt current coming up from the Antarctic, which forms fogs with regularity. I don't think this idea would be very transferable to other regions.
studiot Posted yesterday at 08:00 PM Author Posted yesterday at 08:00 PM Just now, exchemist said: I don't think this idea would be very transferable to other regions. When did you last go up Ben Nevis ? 😀 Just now, Sensei said: ..except that it was in Dune.. https://en.wikipedia.org/wiki/Dune_(novel) Windtrap/wind catcher https://dune.fandom.com/wiki/Windtrap Dune is Science Fiction which also involved telephathic powers and other stuff. But thanks for the replies guys.
Externet Posted yesterday at 08:36 PM Posted yesterday at 08:36 PM (edited) I saw a documentary video ~40 years ago being done in Chile coastal high lands, was black&white. For sure was not then done with polypropilenes or modern plastics but some kind of netting vegetal fibers then. Seen a couple of other documentaries in the last ~30 years revisiting the same; and one more lately reported as a high-tech-wow! discovery of modern science. Probably a chilean site may report since when it has been going on. Edited: added link---> https://search.brave.com/search?q=chile+obtencion+agua+de+la+niebla+costera+antiguedad&source=web When I lived in Berkeley, California; every night rained under the trees from their leaves collecting the fog coming from the sea trough the San Francisco gate. One of the comments shown on one of the pertinent links https://www.bbc.com/mundo/participe/2009/04/090422_1224_participe_atrapanieblas_am https://www.bbc.com/mundo/participe/2009/04/090422_1224_participe_atrapanieblas_am Says... " It is not a novelty, I know those... ...since 1960" Edited 23 hours ago by Externet Polished.
geordief Posted yesterday at 09:13 PM Posted yesterday at 09:13 PM 1 hour ago, studiot said: When did you last go up Ben Nevis Does Ben Macdui** count.? I was stranded up there in the fog overnight with another 17 yr old friend in a small tent which wetted our clothes /sleeping blanket when we unavoidably touched the sides. The morning came and we walked down into the fog which cleared aftrr 5 minutes absolutely fortunately and undeservedly. ** next highest in Scotland after Ben Nevis
exchemist Posted 23 hours ago Posted 23 hours ago (edited) 1 hour ago, studiot said: When did you last go up Ben Nevis ? 😀 Dune is Science Fiction which also involved telephathic powers and other stuff. But thanks for the replies guys. Yeah and there is an arid city on the top of Ben Nevis, right? 😄 In fact I have only been up it once, on a May bank holiday in the 1990s. It was 22C in the glen at the bottom and we heard a cuckoo. At the top it was snow. Edited 23 hours ago by exchemist
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