#Cooling

[madallykak]

#cooling

[mindblowingscience]

With the world continuing to warm up, scientists are busy working on ways of cooling buildings without using vast amounts of energy – such as the record-breaking, ultra-white cooling ceramic composite that's been developed by researchers from the City University of Hong Kong. It's what's known as a passive radiative cooling (PRC) material, and it can reach near-perfect 99.6 percent solar reflectivity, which is a record for this type of material. It's relatively easy and cheap to make, durable, and versatile too. The idea is that it can be put on a building roof and walls in order to keep it cool all by itself. The team behind the cooling ceramic says that the material is able to remove more than 130 watts of heat energy per square meter when the Sun is at its highest, amounting to a significant cooling effect. "Our cooling ceramic achieves advanced optical properties and has robust applicability," says mechanical engineer Edwin Tso Chi-yan from the City University of Hong Kong.

Continue Reading.

#Enviroment #Climate Change #Global Warming #Beetles #Ceramic #Cooling #Hong Kong

[inkcurlsandknives]

Today my partner and I went out with a ladder and harvested mulberries in the neighborhood, I finally worked up the nerve after 4 years of watching fruit fall all over the road to ask if I could bring a ladder and do a proper mulberry harvest. My neighbors told me to have at it! So we got a tarp and shook branches we got almost half a gallon.

Then since we had the ladder out we stopped by the loquat/biwa trees on the way home and picked over 3 gallons of those since they were perfectly ripe and dropping.

Now I've made 2 quarts of mulberry syrup and a loquat curd. My partner made up a shortbread crust so we can have loquat bars and I'm making red fruit tea with syrup to have with the bars 💜

We have so many more loquats tho and I didn't realize how egg heavy fruit curds were so I'm on the fence about how to process our loquats, some jam could be good but canning is a fussy process, we could juice it or maybe make sorbet? I'm open to loquat use suggestions

You gotta make em fast tho cuz we spent 30 min just standing over the rink juice running down our chins inhaling loquats and I think we could possibly eat them.all in the next week if we give into the goblin fruit bounty urges

#urban foraging #mulberry #loquat #fruit #cooling #baking

[corvidsofthedeep]

No Context Crow #312: Cooling Off Crow

Buy the print here!

#crows #corvids #corvidae #birds #animals #drawing #art #illustration #summer #summer vibes #warm weather #warm day #cooling #cooling off #I'm a big... FAN of this one #I'm sorry I had too #daily crows #crow queue #No Context Crow No. 312

[pangeen]

“ Cool Day “ // Rahul Singh

#India #nature #macro #wildlife #birds #Summer #cooling #hot #weather #aesthetics #wanderlust #explore #follow #discover

[copperbadge]

[ID: A photograph taken in the dark of the edge of my bed and nightstand; mostly what is visible is the illumination from my little personal cooler fan, which shows Polk the tabby, in shadow, sitting in front of it at the edge of the bed. ]

I have to say, I bought the little Evapolar Chill unit because I found it on an open-box sale and I was willing to risk $60 to see if it would help me keep my bedroom cool while the AC is out. It's a great little unit -- it takes less than ten watts an hour and runs on a USB, so you can run it from a normal electrical outlet with a USB adaptor, from a laptop, or from a sufficiently powerful backup battery. It's light enough to carry around, and each tank of water gets through roughly 4-10 hours depending on how high you've got the fan going.

It does not cool down the room. I think that's a losing proposition. But it does have four intensity settings and on the highest it'll cool about a ten-foot space very well, and on the lowest setting it's still powerful enough to cool a person lying in front of it (me) on the bed, without feeling like it's blowing air in my face. The cold just kind of trickles out, and you can see even Polkadot was enjoying the cool last night. I am sleeping MUCH better since running it on my bedside table, pointed down the bed. (The blue LED is a nice nightlight but also can be turned off.)

It comes with a biodegradable cartridge that needs replacing every 3-6 months of continuous use to the tune of $30, but feels worth it, especially since once my AC comes back in two weeks I'll probably use it mainly for summer stuff -- it'd be great to have at a beach party or a cookout. Or even just for use to cool down while sleeping if I want to keep the AC bill down occasionally.

Anyway it's a great little tool for what it is so do recommend.

#cooling

[alpaca-clouds]

How to survive the heat

Okay, let me talk about something else.

The climate is changing and it is getting hotter. The summers especially are getting hotter and hotter by the year and a lot of people are struggling with it.

As my American friends keep reminding me: The US - at least those areas, that have always been kinda hot - has usually ACs for most buildings. But someone sitting in Germany I can guarantee you: Most of us do not. At least not outside of commercial buildings like shopping malls and office buildings.

And still, we have temperatures over 30°C - at times going up to 40°C (that is like 86° - 104° in freedom units) - and somehow have to survive in here. So, as someone sitting in an attic flat with no AC in sight, let me talk survival.

Why heat is dangerous

Let me quickly talk about heat and why it is dangerous to us. And let me make it clear: Yes, heat is dangerous. Heat usually kills more people than any other type of extreme weather. Because while you can protect against most other weather, the heat is not that easy.

Our human fleshbags usually function best around 37°C (which is like 98.7°F) and to keep itself at around that temperature. When we are cold, our body burns energy to warm itself up. When we are hot, we produce sweat so that our bodies can cool of via evaporation.

The issue is, that our bodies are only able to do that in certain temperatures effectively.

And if we cannot cool off, our body will slowly fail. Additionally we might sweat so much, that we loose too much water through sweat, our bodies might shut off, too.

Just a quick graphic here. Just to make you aware. Because heat is dangerous.

So, let us talk about something.

How to survive the heat without an AC?

Let me talk about my best friend during the summer heat: The fan. With that I mean the nice electric fan that keeps the air moving. Yes, it burns energy and that sucks, but with the air moving, our sweat can better evaporate, hence cooling us down.

Another thing that might help as well, is a device removing air humidity - because this, too, helps with sweating.

Then, of course, there is the good one: Air out your apartments early in the morning or throughout the night. When it is still cool. Then close up the windows during the day and close and curtains and blinds. If you do not have blinds, you might consider putting something against the windows from the outside. I personally use medical foil blankets, that are made to keep temperatures regulated. But please, please, if you do that: Put them up outside. Because otherwise it might harm the glass of the window. (And yes, sadly I have to remind you, too that you need to check with your landlord if this is okay.)

Another thing that might help you: Fill bottles with water and freeze them. Then put them up in the highest place in your room. This can lower the temperature in your room for a couple degrees. It is a very easy hack that works quite well.

Now, you might have heard about that drinking cold drinks is bad and that instead you actually should drink hot drinks. The science behind it is basically, that cold drinks do kinda cancel themselves out. Yes, cold drinks and ice cream cool down the inside of the body, but with it, it will also tell the body not to sweat. Because of that, you win nothing, but you also loose nothing. The natural temperature regulation gets stopped for a while, but for the same while your body gets cooled by the cold drink. So... It's alright. Do it the way you like. And yes, even though sweating is a good and healthy thing in the heat... It also kinda sucks.

Most importantly though: Drink. And drink something non-alcoholic. (Because alcohol dehydrates the body.) Other than that, it really does not matter what you drink. If it is hot or cold. Just make sure you drink about 2-3 liters a day. To make up for the loss of water through sweating.

The last tip I have is not good for the introverted. But... You might wanna consider spend your days in a place that is climatized. I usually sit in the office even on my off days, because it has a passive cooling system (yes, fancy sustainable stuff even!) and during the weekends I often go to the university library, because it is nice and climate controlled there.

Would I love to lounge around at home instead? Yes. Yes, I would. But... Beggers can't be choosers. And even my autistic ass prefers sitting in the library to having a heat stroke. Because yes, I had a heat stroke once. I cannot recommend it.

So, that said: Stay chilly.

#summer #heat #heat stroke #heat exhaustion #cooling #sustainability #keeping cool #survival #tips #climate change

[probablyasocialecologist]

Cooling systems have long been built into architectural design before there ever were such things as wall units or central air. From the Red Fort in India to the Alhambra in Spain, one can see examples—decorative fountains, water channels—of deceptively complex passive, evaporative air-cooling systems that were (and sometimes still are) prevalent in geographies experiencing high temperatures (both dry and humid) as well as water scarcity. Sometimes coupled with wind towers, small water bowls, courtyard design, plant life, specific building materials, mashrabiya (ornate carved windows), such technologies developed over considerable time are in many estimates more efficient and more effective than more seemingly “high tech” alternatives; moreover, these technologies detach cooling from energy needs. As scores of Asian and African engineers and architects have noted, such technologies and designs are frequently more comfortable than contemporary “global” equivalents. They are also considerably more beautiful.

Ajay Singh Chaudhary, The Long Now

#climate change #air conditioning #Architecture #cooling

[ongawdclub]

S n o o p y x W o o d s t o c k

#snoopy #woodstock #drinking #chilling #cooling #peanuts

[k-i-l-l-e-r-b-e-e-6-9]

𝔄𝔟𝔞𝔫𝔡𝔬𝔫𝔢𝔡 𝔠𝔬𝔬𝔩𝔦𝔫𝔤 𝔱𝔬𝔴𝔢𝔯𝔰 𝔬𝔣 𝔜𝔢𝔯𝔢𝔳𝔞𝔫 ℭℌ𝔓

📷: 𝔩𝔞𝔫𝔞𝔰𝔞𝔱𝔬𝔯

#abandoned #cooling #nuclear power plant #chp #cppp #soviet #soviet union #urbex #photo #photography #abandoned places #Cool places

[thumbsupstede]

I support the amount of garlic Roach keeps in his kitchen. 12/10

#roach ofmd #our flag means death #ofmd #mine #samba schutte #cooling #garlic #roach

[mikael-darkan]

#cooling #venting #men in black

[solarpunkcitizen]

#hat #solarpunk #Solar power #fan #cooling #heat wave #hellzapoppin

[materialsscienceandengineering]

University of Maryland researchers aiming to combat rising global temperatures have developed a new "cooling glass" that can turn down the heat indoors without electricity by drawing on the cold depths of space. The new technology, a microporous glass coating described in a paper published in the journal Science, can lower the temperature of the material beneath it by 3.5 degrees Celsius at noon, and has the potential to reduce a mid-rise apartment building's yearly carbon emissions by 10%, according to the research team led by Distinguished University Professor Liangbing Hu in the Department of Materials Science and Engineering. The coating works in two ways: First, it reflects up to 99% of solar radiation to stop buildings from absorbing heat. More intriguingly, it emits heat in the form of longwave infrared radiation into the icy universe, where the temperature is generally around -270 degrees Celsius, or just a few degrees above absolute zero.

Read more.

#Materials Science #Science #Glass #Cooling #Coatings #University of Maryland #Radiative cooling

[elenitrack]

Léonie Périault 🇫🇷

Tokyo 2020 Olympics

#léonie périault #team france #triathlon #triathlete #running #cooling #tokyo 2020 #olympics

[how-much-for-a-whump]

EGO - Erkeğe Güven Olmaz 5. Bölüm

#turkish #turkish series #whump #male whump #beaten #bruised face #bloody face #cooling #dizzy #cared for #Ego #ego - erkeğe güven olmaz #alperen duymaz