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First, it doesn't state Sonoran Desert. Just "In the desert of Arizona". That entire region of America is a desert if you grew up in places like Florida or the
by corodra 7y ago
First, it doesn't state Sonoran Desert. Just "In the desert of Arizona". That entire region of America is a desert if you grew up in places like Florida or the western part of the Pacific Northwest. Because this article already treats the idea of "pulling water out of air" as some brand new concept that's never been done before, I already assume they're not using the scientific definition of desert.
However, check out NOAA. Here's a chart of average relative humidity of cities throughout the US (https://www1.ncdc.noaa.gov/pub/data/ccd-data/relhum18.dat https://www1.ncdc.noaa.gov/pub/data/ccd-data/relhum18.dat). From 1950 to 2018.But you'll notice in the Arizona cities, plenty times of the year, the average humidity is between 40%-60%.
Still, this is better than the Water Abundance X-Prize winner from Oct 2018. The article was on HN: https://www.fastcompany.com/90253718/a-device-that-can-pull-drinking-water-from-the-air-just-won-the-latest-x-prize https://www.fastcompany.com/90253718/a-device-that-can-pull-... These bastards "tested" it in Hawaii of all places.
So yes, I'll say I give them props for doing this in Arizona. But I'm not going to do backflips. There's still plenty of humidity in Arizona. Especially if you time your testing in the right time of year. But I mean, when huge investment money is on the line, no one would ever dare cheat or try to tip things in their favor unethically. Oh no. Never. That's just silly talk. No one has ever lied in experiments to make wheel barrows of money...cough Theranos cough.
Plus water evaporating from the ground isn't just based on lack of air humidity. It's also on heat of the ground. Just straight up steaming away. Same happens here in Florida, but you can't really confuse Florida with dry air.
- magduf 7y ago>Plus water evaporating from the ground isn't just based on lack of air humidity. It's also on heat of the ground. Just straight up steaming away. No, this was inside where it wasn't that hot, though we weren't running A/C. Also, the humidity in the cities is usually higher than in the open desert because of all the (yard) irrigation, water features, canals, etc.
- leereeves 7y ago> Here's a chart of average relative humidity of cities throughout the US (https://www1.ncdc.noaa.gov/pub/data/ccd-data/relhum18.dat https://www1.ncdc.noaa.gov/pub/data/ccd-data/relhum18.dat). From 1950 to 2018.But you'll notice in the Arizona cities, plenty times of the year, the average humidity is between 40%-60%. I think you're reading that wrong. Doesn't M stand for "Max" and A for "Average"? If so, the average in southern Arizona cities is 15%-30% and in northern Arizona cities 30%-50% (which matches my experience).