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#humidity
ai-dream · 9 days
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m-eowdy · 11 months
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if you want, tell me where you live (can also just be the country/area) and the percentage! and if this is normal/average for this time of year, if you happen to know
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reasonsforhope · 10 months
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Paywall free version! LEGALLY paywall free version, even!
“Nearly any material can be used to turn the energy in air humidity into electricity, scientists found in a discovery that could lead to continuously producing clean energy with little pollution.
The research, published in a paper in Advanced Materials, builds on 2020 work that first showed energy could be pulled from the moisture in the air using material harvested from bacteria. The new study shows nearly any material can be used, like wood or silicon, as long as it can be smashed into small particles and remade with microscopic pores. But there are many questions about how to scale the product.
“What we have invented, you can imagine it’s like a small-scale, man-made cloud,” said Jun Yao, a professor of engineering at the University of Massachusetts at Amherst and the senior author of the study. “This is really a very easily accessible, enormous source of continuous clean electricity. Imagine having clean electricity available wherever you go.”
That could include a forest, while hiking on a mountain, in a desert, in a rural village or on the road.
The air-powered generator, known as an “Air-gen,” would offer continuous clean electricity since it uses the energy from humidity, which is always present, rather than depending on the sun or wind. Unlike solar panels or wind turbines, which need specific environments to thrive, Air-gens could conceivably go anywhere, Yao said.
Less humidity, though, would mean less energy could be harvested, he added. Winters, with dryer air, would produce less energy than summers.
The device, the size of a fingernail and thinner than a single hair, is dotted with tiny holes known as nanopores. The holes have a diameter smaller than 100 nanometers, or less than a thousandth of the width of a strand of human hair.
The tiny holes allow the water in the air to pass through in a way that would create a charge imbalance in the upper and lower parts of the device, effectively creating a battery that runs continuously.
“We are opening up a wide door for harvesting clean electricity from thin air,” Xiaomeng Liu, another author and a UMass engineering graduate student, said in a statement.
While one prototype only produces a small amount of energy — almost enough to power a dot of light on a big screen — because of its size, Yao said Air-gens can be stacked on top of each other, potentially with spaces of air in between. Storing the electricity is a separate issue, he added.
Yao estimated that roughly 1 billion Air-gens, stacked to be roughly the size of a refrigerator, could produce a kilowatt and partly power a home in ideal conditions. The team hopes to lower both the number of devices needed and the space they take up by making the tool more efficient. Doing that could be a challenge.
The scientists first must work out which material would be most efficient to use in different climates. Eventually, Yao said he hopes to develop a strategy to make the device bigger without blocking the humidity that can be captured. He also wants to figure out how to stack the devices on top of each other effectively and how to engineer the Air-gen so the same size device captures more energy.
It’s not clear how long that will take.
“Once we optimize this, you can put it anywhere,” Yao said.
It could be embedded in wall paint in a home, made at a larger scale in unused space in a city or littered throughout an office’s hard-to-get-to spaces. And because it can use nearly any material, it could extract less from the environment than other renewable forms of energy.
“The entire earth is covered with a thick layer of humidity,” Yao said. “It’s an enormous source of clean energy. This is just the beginning in making use of that.””
-via The Washington Post, 5/26/23
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oakenroots · 2 months
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Winter Wisdom from My Yankee Mother:
If you wake up with chapped lips, or your pets have static in their fur, put a pot of water on to boil. Make sure you don't let it boil down to a dry pan! Cold air doesn't hold as much humidity, and humidity under 40% causes static, humidity over 55% prevents it. It only takes one spark to start a fire in dry weather!
Coming in from the cold? Resist the urge to sit right next to the radiator. While your fingers and toes are numb from the cold, it is easy to damage them with direct heat without realizing it. Let your extremities come up to temperature gradually so you don't end up feeling nauseated or burning yourself. Sip room temperature water before you gulp down that hot soup!
If your house is cold and you have bad air circulation, use the curtain rod or some thumbtacks to hang a blanket or towel over the windows. The glass or acrylic radiate the cold; a blanket over it keeps the cold out and the warmth in much more efficiently than throwing another blanket over your feet.
If you can't keep the whole house warm, close the doors and vents to unoccupied rooms, and stuff a towel under the door gaps. Keeping all of the people and pets in the largest room, closest to the kitchen, makes it easier to stay warm, especially if there's food on the stove.
Make sure you have a Carbon Monoxide detector if you have a gas stove or gas heating!
Using a space heater? Make sure it is plugged directly into the wall and is not sitting next to or on top of anything flammable. Tile floors are ideal because the tile will help the heat radiate better than a fabric which will absorb and trap the warmth (and be a fire hazard). Setting a small fan behind it will help the heat circulate even more effectively.
Still cold? Get moving! Do some jumping jacks or play with your pets, raising your temperature should help increase the temperature in the room!
Good luck this winter, every one! Stay warm!
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vinceaddams · 9 months
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umm I didn't order this soup, where's my air? my regular air for breathing?? take this soup away and bring me my usual air, please.
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unbfacts · 9 months
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fuckyeahfluiddynamics · 2 months
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geopsych · 2 years
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Down in the woods two years ago today.
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Engineers develop salty gel that could harvest water from desert air
Massachusetts Institute of Technology engineers have synthesized a superabsorbent material that can soak up a record amount of moisture from the air, even in desert-like conditions. As the material absorbs water vapor, it can swell to make room for more moisture. Even in very dry conditions, with 30% relative humidity, the material can pull vapor from the air and hold in the moisture without leaking. The water could then be heated and condensed, then collected as ultra-pure water. The transparent, rubbery material is made from hydrogel, a naturally absorbent material that is also used in disposable diapers. The team enhanced the hydrogel's absorbency by infusing it with lithium chloride—a type of salt that is known to be a powerful dessicant. The researchers found they could infuse the hydrogel with more salt than was possible in previous studies. As a result, they observed that the salt-loaded gel absorbed and retained an unprecedented amount of moisture, across a range of humidity levels, including very dry conditions that have limited other material designs.
Read more.
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escuerzoresucitado · 1 year
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gears2gnomes · 6 months
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They are happy.
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onlytiktoks · 19 days
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rawro · 6 months
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my new dehumidifier has rbg lighting i bought a fucking gamer dehumidifier
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dk-thrive · 9 months
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The rain has finally started... The drops hitting the tile roof sound comforting, and already the air feels cleaner, lighter, as the humidity is washed out of it.
— Lisa See, Lady Tan's Circle of Women, A Novel (Simon & Schuster, June 6, 2023)
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azukilynn · 9 months
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poetry stands still
hobbled by molasses air
gazing at the moon
~
azuki lynn
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Summer Sunshine (verse)
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Poor Japanese parsley
In recent years, summer precipitation has decreased
It's getting less.
Especially in 2021
I can no longer collect Japanese ginger.
This year, 2023, there will be significantly less rain.
It is not possible to collect Japanese parsley harvested in winter.
Because Japanese parsley requires humidity.
The damage is severe.
From now on, I shall water the garden.
Should I grow Japanese ginger and Japanese parsley artificially?
A hot and less rainy summer
Will come again next year.
(2023.12.31)
Rei Morishita
夏の日照り(韻文)
ここ数年、夏の降水量が
少なくなってきた。
2021年には
ミョウガが採れなくなった。
ことし2023年にはひときわ雨が少なく
冬には収穫できるセリが採取できない。
セリは湿度を必要とするので
被害は甚大だ。
これからは庭に水撒きして
ミョウガやセリを人工的に育てるか?
暑くて少雨の夏は
来年も来るだろう。
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