Water Seer

Have not seen either of those before but its definitely a concept many are working on at the moment.

I've seen a lot of directional wind turbines using the low pressure zone created behind the motor housing to drop water into a collector for use. There is a lot of interesting tech being created at the moment for sure.

Thanks for posting.

The idea is condensing the water that's present in the air, the higher the humidity and the greater the temperature differences the more water you will get.   It's nothing new, your car windscreen fogs up because of the temperature change of the glass compared and the relatively high humidity inside the car due to the people.  When you heat up the windscreen with the heater, the differences in temperature don't favor the condensation.   Consumers have been able to collect water from the air for a long time in the form of a dehumidifier.  The reality, they use a lot of power as you're basically running a small fridge/air conditioner, which consequently is why air conditioners drip water.    

In terms of the specific examples given above, they're scams. 
Here's a break down of it by a scientist if you care to inform yourself.


For the 'water seer', also busted here.


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So, the idea 'can' work however.... 



400W of power... so you could run it during the day and I'd make my own if I were going to do this.  In terms of clear coat on the coil, it probably insulates the coin a little making it less efficient and I'd doubt you'd actually have issues on near freezing copper coils.   He talks of oxygenating the water [more electricity] to stop algae, kind proof he doesn't know what he's talking about because you need 'sunlight' for it to grow and if it were a problem a UV light would work better, though I digress.  It makes 20-40 liters a day, assuming you have a grid [not exactly prepping] so if you're running on solar with that kind of set up you'll make about 5-10 liters during the day assuming a run time of 6hrs and about 800W of panel.  That's a lot of power that might be put to better use.   About $1500 or so on the cheap diy.   At this point, to my mind rain catchment looks more economical.  Even a cheap 3mx3m tarp in the backyard going to a drum/bucket will get an average of 12 liters a day in the driest month [Dec] in my area.  Cost, probably about $60 all up.  Sticking a food grade drum or even a properly washed out bin [napisan/bleach/pool chlorine] if you're desperate under a cut/redirected spout would yield you even more drinking water, most likely enough to handle drinking water issues indefinitely.   If you do all the spouts even on a small house and you might have enough to water some veggies.  You could spend another $200 or so and have a pressured water pump hooking it up to your taps [replace a normal tap with a gate value thanks Gray] and carry on much like normal. 

So, the first 2 are fraudulent, though the idea is possible, it's rather energy hungry and I question if it's worth doing when there's a cheaper and better solution?  

People and insects have been collecting water from "thin air" for a gazillion years, just hang up some shade cloth (if you are a person) or poke your back legs up in the air (if you are an insect in the Namib desert).

But no matter how you do it you need for there to be at least some moisture in air to get, which is the case in many places but not all, at least AFAIK not enough to harvest with current simple technology.

I guess with the right tech and enough power you could, but I'm sure it's not something we need to get involved with.

Further.

Yeah, I mentioned it in the thread about generosity, though what we have here is someone preying on the generosity of people to obtain cash [they haven't made anything so it's likely], or someone wanting to be generous [providing water] and not listening to the counter inquiry that's sound, aka cognitive bias, perhaps thinking of the videos as 'hate videos' rather than delving into the claims themselves and seeing if they're possible. Aka having reasonable assertions. The author himself is a bit of a braggart, though his science looked very solid and from multiple fronts, so it doesn't matter to me.

He also made a very astute observation in another similar video on the water lily [not covered here] that water supply is not particularly at issue, it's the water quality and fresh water that is, so the same cost and energy put into getting 1 liter of water yields you about 1000 Liters with reverse osmosis and it might be boring but it will keep a lot more people alive. To my mind a pretty valid point. This of course opens up ideas that 'do' work, rain collection, filtering, reverse osmosis, water treatment.

Sounds like something out of Dune.

Watched that last week again..  love the film

If cooked properly they're magnificent. Apart from that, they do contain nutritional value which isn't to be shirked if we find ourselves under a huge pile of.... the stuff mushrooms grow in.