#freezing — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #freezing, aggregated by home.social.
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Freezing Via Ice Bridge
For frost to spread on a surface, individual water droplets freeze and then spread the freezing front to a nearby droplet. Frequently that happens through an ice bridge that connects one droplet to the next. On hydrophilic surfaces, the bridge grows along the surface, slowly connected one droplet to the next and the next until the entire surface is covered in frost. On superhydrophobic surfaces, frost still spreads via ice bridge, but those ice bridges are suspended in the air, cantilevered out from the frozen droplet. You can watch the process in the image below.
The researchers found that frost was later to form and slower to spread on these superhydrophobic surfaces, which could be valuable for applications like the heat exchanger found in heat pumps. Once a heat exchanger’s finned surface is frost-covered, its efficiency plummets. The team suggests that coating these surfaces to be superhydrophobic could help keep them operating efficiently longer in cold and humid conditions. (Image credit: frost – K. Shimizu, experiment – S. Yang et al.; research credit: S. Yang et al.; via Physics World)
Animation of a suspended ice bridge growing between water droplets on a superhydrophobic surface. #droplets #fluidDynamics #freezing #frost #heatTransfer #hydrophilic #iceBridges #physics #science #superhydrophobic -
City of #SpringfieldMO looks into starting new program to reduce #FoodWaste
By Billie Brightman
Published: Aug. 14, 2026 at 6:46 AM EDTSPRINGFIELD, Mo. (KY3) - "The City of Springfield’s Environmental Services did a study on landfill waste composition and found that 20% of waste being sent to Springfield’s landfill is food waste.
"The city already has #composting programs that have helped divert a lot of that waste and turn it into something that can help the environment.
"To make an even bigger impact, the city is looking at a grant to fund the new #FoodWise Initiative.
"Staff can apply for up to $300,000 from the #WorldWildlifeFund to pay for an educational outreach program to teach people about best #FoodStorage practices, how to prolong food life by #freezing and dehydrating, #MealPlanning, shopping smart, and using all parts of your food.
" 'How can we help people to better meal plan, especially meal planning on a budget,' said Environmental Services Market Development Coordinator Ashley Krug, 'which is something I think we all consider right now a lot with food being as expensive as it is. How can we think about utilizing materials in a new way that really lets us maximize the usage of them and not forget about the spinach that we have sitting in the back of our fridge every single time?'
"Some of it might seem obvious, but there are parts of it that you might not know about that can help you save food.
" 'Innately, we sometimes think like, ‘Oh, yeah, I understand how to handle this,’ Krug said, 'but oftentimes even our refrigerators aren’t actually designed sometimes in ways that are very intuitive for prolonging produce, for example. So when we can have those conversations with people, that kind of turns that lightbulb on.'
"Through education, the city wants to target families with kids under 18 and adults ages 18 to 35 because young people making change now sets everyone up for a stronger future.
" 'This also just enables you to take that into a long-term lifestyle,' said Krug, 'and those are the people who are going to be inheriting our landfill from all of us, right? So I want kids to think about having ways to preserve that landfill lifespan for as long as possible for themselves.'
"But most of the funds would help support food storage kits and workbooks so no one has a reason to say they can’t do it.
"City staff is finalizing the exact amount they will ask for so they can apply for the grant by September 1. They expect to hear back before the end of the year, as #WWF would like programs to start in January 2027."
Source:
https://www.ky3.com/2026/08/14/city-springfield-looks-into-starting-new-program-reduce-food-waste/#SolarPunkSunday #ReduceFoodWaste #Compost #FoodPreservation #ReduceWaste #ZeroWaste
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#UMaineCooperativeExtension - Bulletin #4085, Let’s Preserve: #Tomatoes
Developed by Penn State Cooperative Extension with special project funds from Extension Service, U.S. Department of Agriculture.
Table of Contents
- Recommended Varieties
- Quality
- Quantity
- #Acidification
- #Freezing
- #Canning Procedure
- Process TimesRecipes
- #TomatoJuice
- Tomato and Vegetable Juice Blend
- Whole, Halved or Crushed Tomatoes
- Tomatoes and Okra or Tomatoes and Zucchini
- Chili Salsa (Hot Pepper-Tomato Dip)
- Standard Tomato Sauce
- Spaghetti Sauce without Meat
- Hot Barbecue Sauce
- Standard Tomato Ketchup
- Country Western Ketchup
- Blender KetchupLearn more:
https://extension.umaine.edu/publications/4085e/#SolarPunkSunday #PreservingTomatoes #FoodSecurity #PreservingTheHarvest #GrowYourOwnFood #FoodPreservation
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Mirabilite Mounds at Great Salt Lake
In cold weather, a new geological feature has shown up at Utah’s Great Salt Lake in the last decade. These salty mirabilite mounds form terraced crystals that resemble Yellowstone’s Mammoth Hot Springs.
Diagram showing how a salt-laden spring pushing upward through the mirabilite layer can then form mounds at the surface when the dissolved mirabilite recrystallizes after the water evaporates.Mirabilite is hydrated sodium sulfate (as opposed to the sodium chloride of table salt). The structures form when upwelling spring water partially dissolves the layer of mirabilite found beneath the lake bed. That sulfate-laden water rises to the surface, where it freezes into the crystals seen here.
A timelapse showing the formation of mirabilite mounds.When temperatures rise above freezing, the water in the mirabilite evaporates, leaving behind white, powdery thenardite. (Video credit: Great Salt Lake Institute; image credit: Utah Geological Survey)
#crystalGrowth #dissolution #evaporation #fluidDynamics #freezing #geophysics #physics #science -
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#TIL In the 1950s, #scientists cooled hamsters/rats to near-freezing and used #microwave diathermy to revive them. Not quite “frozen mice in a microwave,” but still a wonderfully weird chapter in cryobiology history. 🐹❄️📡
https://www.nature.com/articles/1731136a0
A research echoed recently by a team from #germany #fau that succeeded in preserving #brain tissue through extreme deep #freezing
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“Frozen Waves”
Photographer Jan Erik Waider is a master of capturing incredible landscape imagery. In these videos, he uses a drone to film waves in the Baltic Sea gently undulating polygonal slabs of ice on the ocean surface. The interplay of light, color, and motion looks almost surreal, but nature is better than we credit at making imagery too good to look away from. (Video and image credit: J. Waider/NorthLandscapes; via Colossal)
https://www.youtube.com/watch?v=-JQaZaUSS0E
#flowVisualization #fluidDynamics #fluidsAsArt #freezing #ice #oceanWaves #physics #science #seaIce -
A Fungus That Freezes Water
Although water can freeze below 0 degrees Celsius, it requires a little help–in the form of a nucleation site–to do so. Often temperatures must dip well below 0 degrees Celsius for droplets to become ice. But a new study shows that at least one fungus forms proteins that help the process along.
The proteins come from the Mortierellaceae fungal family, by way of a bacterial species some hundreds of thousands of years ago or more. In experiments, adding the fungal protein helped water freeze 10 or more degrees Celsius sooner than it otherwise would.
The authors note that there are many possible applications for this freezing additive; it could help preserve food or cells without requiring lower freezing temperatures that could damage delicate tissues. It could also serve as a cloud seeding chemical in place of toxic silver iodide particles. (Image and research credit: R. Eufemio et al.; via Gizmodo; see also V. Tech)
#biology #fluidDynamics #freezing #physics #science #supercooling -
In the swing of spring
Between freezing and melting
Whipsawn flowers cry#Haiku #OneHaikuADay #WritersCollective #writingcommunity #BackToHaiku #April #MotherNature #Nature #Spring #Daffodils #Freezing #Melting #Poetry #Ohio #USA #Photography #2026
April 20, 2026
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'"HEART EXPLOSION"
(written´n´recorded by Oliver Blees)https://on.soundcloud.com/doiX1ajmj64zExqFAV
#therealbuddyolli #oliverblees #oliverblaze #bleeding #freezing #pop #rock #popular #apple #indierock #shoegaze #punk #punkrock #love #music #musica #mysong #alternative #photo #photography
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"BLEEDING & FREEZIN`"
super stereo deluxe
(written´n´recorded by Oliver Blees)https://on.soundcloud.com/pk5hvczp4LAPpn8qfh
#therealbuddyolli #oliverblees #oliverblaze #bleeding #freezing #pop #rock #popular #apple #indierock #shoegaze #punk #punkrock #love #music #musica #mysong #alternative #photo #photography
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4 P.M. #RADAR UPDATE:
Keeping an eye on a cluster of #showers working through the #Northland from northwest to southeast.
It's likely a mix of #rain, #sleet, and #snow with #temperatures staying above #freezing ahead of it.
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Happy #Thursday afternoon from the #Northland!
The first of two #winter #storm systems continues to push through the region, keeping #temperatures #cool and #winds strong off #LakeSuperior.
Most of us are seeing #snow, but some #sleet and #freezing #rain is falling south of Highway 2.
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NORTHLAND FORECAST FOR MARCH 31, 2026:
A quick moving #storm system will bring a mix of #snow, #sleet, #freezing rain, and #rain across the #Northland Monday night and Tuesday morning, creating slick road conditions.
Low #temperatures will be in the upper 20s and low 30s with a #breeze. Highs Tuesday will be in the 30s and 40s with #calming winds and some #clearing skies.
VIDEO/DISCUSSION: fox21online.com/weather
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MIXED PRECIPITATION THREAT:
A quick moving #storm system will bring a mix of #snow, #sleet, #freezing rain, and #rain through the #Northland Monday night and Tuesday morning.
Expect #slick road conditions for the morning commute, along with #breezy winds and #cool #temperatures.
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“Quiet Pulse” and “Another World”
Light shines dimly through the wall of an ice cave in this photograph by Marie-Line Dentler. Shaped by melting, pressure, freezing, and fracture, these structures are dynamic and ethereal. (Image credit: M. Dentler; via Colossal)
#fluidDynamics #fluidsAsArt #freezing #geophysics #iceFormation #melting #physics #science -
NORTHLAND FORECAST FOR MARCH 18, 2026:
A #clipper system will bring light #snow #showers and a bit of #freezing 3drizzle through the #Northland Tuesday night. Total #snowfall will be in the 1 to 2 inch range with low #temperatures in the teens.
Wednesday will see the #spring-like #warmth return with highs in the upper 30s and low 40s with a light #breeze and mostly #cloudy skies.
VIDEO/DISCUSSION: fox21online.com/weather
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Aging Salty Ice
When ice forms in salty water, it starts out mushy and porous. Salt does not freeze neatly into ice’s crystalline structure, so the forming ice has pores and gaps where salty brine gathers. As the ice ages, more brine is pushed out and gradually convects downward, due to its greater density. Over time, this makes the ice layer thinner but more solid, with fewer pores. You can see a timelapse of the process in a laboratory experiment below. (Image credit: sea ice – C. Matias, experiment – F. Wang et al.; research credit: F. Wang et al.)
#convection #fluidDynamics #freezing #ice #iceFormation #physics #porosity #porousFlow #science #seaIce
