the design for a new solar desalination system that takes in saltwater and heats it with natural sunlight.
The configuration of the device allows water to circulate in swirling eddies, in a manner similar to the much larger “thermohaline” circulation of the ocean. This circulation, combined with the sun’s heat, drives water to evaporate, leaving salt behind. The resulting water vapor can then be condensed and collected as pure, drinkable water. In the meantime, the leftover salt continues to circulate through and out of the device, rather than accumulating and clogging the system.
Neat.
The team envisions a scaled-up device could passively produce enough drinking water to meet the daily requirements of a small family.
… steam is then collected in a condenser to reclaim the water to continue the cycle.
The researchers on the new study set out to improve the efficiency of the heat transfer of the condenser pipes. They developed a coating made of fluorinated diamond-like carbon (F-DLC), a material that’s hydrophobic, or water-repelling. When the steam condenses on the coated pipes, it no longer forms a thin film but balls up into droplets much more easily. That helps it run off faster, allowing more steam to come into contact with the pipe sooner.
I have been an Android user for 13 years now. After using almost every Google service possible I am going down the privacy rabbit hole lately. Gmail -> Proton Mail, Chrome -> Firefox, Keep -> Notesnook, Google Search -> Kagi, …...
I was having a friendly discussion with someone this morning about PC and Laptops for work/education stuff, he suggested that I could use a chromebook for all this stuff and this would be a good idea and make things easier. I strongly disagreed with this, mainly because I hate laptops, the keyboard and touchpad make me angry and...
ive only really had fish but ther enothing close to a buddy like, something like a dog or a cat. pets are also pricey and im allergic to cats and dogs plus my home is kinda messy. i do wish i could get something besides a fish but you know it is what it is....
What are some tips for dealing with solicitors (door-to-door salespeople)? Our neighborhood gets a lot of them.
We have a “No solicitors” sign hanging on the front door. Nevertheless, they knock, ring the doorbell, or worse, yell through the front window when it is open, trying to get our attention.
We have a Ring video doorbell and have enabled the automatic “Sorry, we’re not interested” announcement after 15 seconds. These pushy SOBs ignore the sign and the announcement.
When I ultimately find out they are soliciting and I ask why they ignored both the sign and the doorbell announcement, they usually say something like, “I’m not selling anything. I am just working with some people in the neighborhood…” or some such BS.
My wife and I work from home and have had to explain the window shouting to coworkers in meetings. We also have two small children who could be trying to nap at any given time. We have good reasons to not want to be disturbed at home and these assholes disregard that wish.
I will write a negative review online if I find out their name and company they are representing. Any other ways to get these people to leave us alone?
Choose your vehicle (lemmy.world)
"national socialists were socialist" (lemmy.ml)
Well I feel better now. (lemmy.world)
It's right behind me, isn't it (lemmy.zip)
US Governor has called in the national guard (slrpnk.net)
fishing for math (feddit.de)
Found via...
Americans (lemmy.ml)
All pollinators are important but... (lemmy.world)
Remember to get rid of stuff you don't need (startrek.website)
MIT’s New Desalination System Produces Freshwater That Is “Cheaper Than Tap Water” (scitechdaily.com)
Nice to meet you? [TheyCanTalk] (startrek.website)
Sources...
literally no clue (media.infosec.exchange)
A high-falutin' Monster Energy. (lemmy.world)
It means no worries! (startrek.website)
Power plant condenser coating could cut 460 million tons of CO2 per year (newatlas.com)
Android vs. iOS
I have been an Android user for 13 years now. After using almost every Google service possible I am going down the privacy rabbit hole lately. Gmail -> Proton Mail, Chrome -> Firefox, Keep -> Notesnook, Google Search -> Kagi, …...
Every time I leave or enter the house (i.imgur.com)
Do you prefer PC or laptop? (freeonlinesurveys.com)
I was having a friendly discussion with someone this morning about PC and Laptops for work/education stuff, he suggested that I could use a chromebook for all this stuff and this would be a good idea and make things easier. I strongly disagreed with this, mainly because I hate laptops, the keyboard and touchpad make me angry and...
What is the best type of pet to have as a buddy?
ive only really had fish but ther enothing close to a buddy like, something like a dog or a cat. pets are also pricey and im allergic to cats and dogs plus my home is kinda messy. i do wish i could get something besides a fish but you know it is what it is....
What's the best Android/iPhone app for Lemmy?
Sticky so that we have one place to discuss.