fastcompany.com

TheGrandNagus , (edited ) to Technology in Impossibly thin fabric could cool you down by 16-plus degrees

To be clear, the headline refers to yank degrees:

In outdoor tests in Arizona, the textile stayed [...] 16 F (8.9 C) cooler than regular silk, a breathable fabric often used for dresses and shirts.

They didn't really compare it to many materials it seems.

I also don't know why they said 16+ degrees. That was the largest temperature delta they saw, not the least...

Besides, this is only part of the tale:

  • Is it affordable?

  • Is it mass manufacturable?

  • Is it comfortable?

  • Is it durable?

  • Is it washable?

  • Is it crease prone?

  • Can it be easily mixed with other materials, e.g. to make it elasticated?

  • Is it recyclable?

  • Is it dyeable?

  • is it fine for sensitive skin?

  • etc

Sounds cool (heh) though. I'm often too warm.

AbidanYre ,

yank degrees

We prefer the term freedom units, thank you.

Venator ,

I prefer the term Yankee doodlegrees, thank you.

captainlezbian ,

Idk yank units sounds really catchy

Zron ,

I’ll yank your units

Aux ,

More like wank degrees, lol.

Solemn ,

... Silk is used as a cold weather baselayer in active wear? Not sure if it performs differently as an outer layer, but it's got solid insulating properties for keeping in heat

ZagamTheVile , to Technology in Impossibly thin fabric could cool you down by 16-plus degrees

I admit I didn't read the article throughly, but surely if it's impossiblely thin it can't exist. I only bring this up because I'm an obnoxious pedant.

lurch ,

i just read the title and it sounds like it will freeze people to death

A_Very_Big_Fan ,

Same. Guess I won't bother looking into it if it's impossible 🤷‍♀️

Aux ,

We can make materials as thin as one atom. It's just very expensive.

iknowitwheniseeit ,

Can't you make one atom thin sheets of carbon with a pencil and tape?

Aux ,

Yes, you can, but your sheet will be very small. If you want to make a sheet large enough to make a shirt, things get ridiculously expensive.

robotica ,

Yeah but he was being pedantic over the word "impossibly". If we can make 1 atom thin sheets, then it's not impossible, right?

werefreeatlast ,

I would require a wet T shirt contest to really see and compare.

Kolanaki ,
@Kolanaki@yiffit.net avatar

"This is thin."

"Impossibly thin!"

"No... I'm pretty sure it's possible considering we are holding it right this very second."

cmnybo , to Technology in Instagram is training AI on your data. It’s nearly impossible to opt out

You opt out by simply never giving them any of your data.

ryan213 , to Technology in Impossibly thin fabric could cool you down by 16-plus degrees
@ryan213@lemmy.ca avatar

Made of plastic... Just what we need!

invertedspear ,

If we can recycle single use plastic into this, then great. Somehow I doubt that’s how it would be made.

masquenox ,

If we can recycle single use plastic into this, then great.

They won't - they'll just use "Recycling!" as a pretext to continue business as usual... which was the whole point of "Recycling!" in the first place.

asdfasdfasdf ,

Disagree. Even if we could, from what I understand, large, solid pieces of plastic are better than extremely small, thin, fragile pieces since those are going to turn into microplastics and get everywhere. I'd rather have them in one big chunk.

Atelopus-zeteki , to Technology in Instagram is training AI on your data. It’s nearly impossible to opt out
@Atelopus-zeteki@kbin.run avatar

Opting out is easy. Come to Pixelfed, they sure as hell aren't IG.

https://pixelfed.org/servers

HelixDab2 , to Ukraine in Signal’s founder warns Ukrainians about using Telegram. Here’s why

Reached for comment, a spokesperson for Telegram disputed that data is stored in plain text on the company’s servers, saying “everything stored in Telegram’s cloud is securely encrypted.” The spokesperson also said, “This kind of FUD is not surprising, coming from a minor competitor (and typical for this one). That said, we can confirm that we have neither developers, nor [servers] in Russia and we don’t see any of the mentioned risks.”

Okay, so, the spokesman said, a. No Telegram developers are in Russia, and b. There are no Telegram servers in Russia. Pretty straightforward, right?

...Except that's not what Marlinspike said at all. What they actually said was,

Every msg, photo, video, doc sent/received for the past 10 yrs; all contacts, group memberships, etc are all available to anyone w/ access to that DB

Many TG employees have family in Russia. If Russia doesn’t want to bother w/ hacking, they can leverage family safety for access.

The Telegram spokesperson didn't actually address any of the claims made by Marlinspike. They didn't even talk about having a database that stored messages, and then strawmanned the arguments about how Russia could gain access to said database. It's not the FSB knocking on a developer's door demanding access to the database, it's the FSB calling a developer and letting them know that their uncle is in custody, and something bad might happen if they aren't given the access they're asking for.

Seriously, don't use Telegram for anything that needs to be secure.

darklamer , to Technology in Instagram is training AI on your data. It’s nearly impossible to opt out
@darklamer@lemmy.dbzer0.com avatar

“These features and experiences need to be trained on information that reflects the diverse cultures and languages of the European communities who will use them.”

No, they do not, these features and experiences don't need to exist at all.

HelixDab2 , to Technology in Impossibly thin fabric could cool you down by 16-plus degrees

On top of that, as we experience higher temperatures, many people also crank up their air conditioners—which emit more heat-trapping greenhouse gases into the atmosphere.

This is not correct. Air conditioning units do not 'emit more [...] greenhouse gases'. Air conditioners use a refrigerant--usually R134a--which does have a high global warming potential (GWP) compared to methane or CO2, but that refrigerant is in a closed loop; it's not going anywhere unless the system is damaged. Most a/c failures aren't from refrigerant leaking out of the system, and the system no longer being able to effectively transfer heat, but from the compressor motor failing. When the compressor fails, in most cases you can evacuate the refrigerant, replace the broken part, and then recharge the system. (The fact that they can be repaired doesn't mean that they usually are repaired. Which is shitty.)

What is true is that a/c units emit heat themselves. An air conditioner moves heat from inside a space to outside of that space; in the process of doing so, the a/c unit itself is creating an additional small amount of heat from the function of the compressor motor, electronics, etc.

Beyond that, most electricity that's used to run a/c systems--and every other electrical device--is produced from burning fossil fuels. So if there's more demand for electricity--such as from a heat dome that has everyone running their a/c full-time--then yes, more CO2 is going to get pumped out into the atmosphere. But if your electricity is coming from sources that are largely emissions-free, like solar, wind, or hydro, then air conditioning is a negligible source of heat.

tl;dr - don't feel bad about using your a/c when heat rises to dangerous levels; agitate at a local, state, and national level for renewable, carbon-neutral ways of generating electricity, and for more efficient use of electricity.

crawancon ,

Thank you.

I don't think we should feel bad for housing AC. it was created by us to feel comfortable. Just because companies and bitcoin miners and ultron-ass skynet-ass LLM/ML-ass trainers are using stupid amounts of resource doesn't mean the population is the cause. it's the greedy few.

HelixDab2 ,

I agree with all of this. At the same time, I think that, in most cases, people should allow their body to adapt to heat, if they are healthy enough to do so. Most people can learn to be comfortable in higher heat than they believe, although some people have medical conditions that will make them more susceptible to heat exhaustion and heat stroke. If you can get by without it, you should. If you're at risk by not using it, don't feel guilty.

(FWIW, my office only has a/c because I have a very, very large printer in here, and it tends to have head strikes and scrap prints out if there's no climate control. But since I'm not printing at the moment, the current temp in here is 82F.)

piecat , to Technology in Impossibly thin fabric could cool you down by 16-plus degrees

Nighthawkinlight just released a video on a material that accomplishes this that you could make at home.

https://youtu.be/Nqxjfp4Gi0k?si=4rEVK5DjNZCGc1Fi

tyler ,

So different thickness materials can actually cool you off just from a heat transfer perspective, completely ignoring the PCM capabilities (I didn’t click your link I’m just assuming it’s his latest vid). https://www.thermal-engineering.org/what-is-critical-thickness-of-insulation-critical-radius-definition/

So wearing a thin tshirt in cold weather for example can actually be colder than wearing no shirt at all. Same in reverse. I’m wondering if this material is doing that rather than being some sort of PCM.

Beaver OP , to Ukraine in Signal’s founder warns Ukrainians about using Telegram. Here’s why
@Beaver@lemmy.ca avatar

More Ukrainians should also look into the Matrix protocol as it is end to end encrypted, the service is decentralized and the company that is behind the protocol is based on the UK.

The app element is good app to get started.

Ukraine could have multiple matrix servers for everyone to use.

5 for civilians. 8 for military branches and 3 for government.

skillissuer , (edited )
@skillissuer@discuss.tchncs.de avatar

polish MoD has siloed matrix instance that they use for their own communications, with their own client. it's e2ee but not for classified information

Beaver OP ,
@Beaver@lemmy.ca avatar

Damn that’s great inspiration!

Is there a reason for it not being e2ee for classified information?

skillissuer , (edited )
@skillissuer@discuss.tchncs.de avatar

maybe they feel it's not safe enough. client is called DSI Merkury 2.0 if you want to look it up more closely

e: lol it's just element clone, they even left original theme in the same shape. it has forced 2FA and as governmental app could be tied to governmental qualified electronic signature infrastructure (every citizen can get one for free) but not sure about it

behold this pixellated screencap:

https://discuss.tchncs.de/pictrs/image/018e405b-bca5-42be-b4e2-01db61442999.png

doodledup ,

It's not a good direct alternative to Telegram as it's decentralized and is not based on phone numbers.

It can work as addition to Signal, but it's not a good alternative.

Beaver OP ,
@Beaver@lemmy.ca avatar

Tied numbers make it easier for Russians to track you down.

harrys_balzac , to Technology in Impossibly thin fabric could cool you down by 16-plus degrees

A good stop-gap while cities de-car-ify and rebuild green space.

Naich ,
@Naich@lemmings.world avatar

Don't need to decarify to rebuild green spaces.

blazera ,
@blazera@lemmy.world avatar

Green space was overwhelmingly removed for car space

WalrusDragonOnABike ,

And you don't need to re:build green spaces to decarify. But you probably should.

RobotToaster ,

They'll just build more luxury condos where the roads were.

iopq ,

Which would be great, because it would give people with high incomes places to live, lowering the competition for housing and the rents at the top end. Those people would spend and contribute to the local economy, since they have the money to spend.

This would be a huge win for everyone, as building more housing often is.

stardust , to Technology in Instagram is training AI on your data. It’s nearly impossible to opt out

Social media that requires an account to view stuff aren't worth even visiting.

frog , to Technology in Instagram is training AI on your data. It’s nearly impossible to opt out

UK citizens can also opt out, as the Data Protection Act 2018 is the UK's implementation of GDPR and confers all of the same rights.

In my opt out, I have also reminded them of their obligation to delete data when I do not consent to its use, so since I have denied consent, any of my data that has been used must be scrubbed from the training sets and resulting AI outputs derived from the unauthorised use of my data.

Sadly, having an Instagram account is unavoidable for me. Networking is an important part of many creatives' careers, and if the bulk of your connections are on Instagram, you have to be there too.

Thalestr ,
@Thalestr@beehaw.org avatar

Forgive me for the pessimism, but I sincerely doubt that they honour any opt-outs. Meta has shown time and time again that they'd rather just pay fines as business expenses instead of abiding by law(s).

vzq , to Technology in Impossibly thin fabric could cool you down by 16-plus degrees

Actual degrees or American fantasy units?

tal , to Technology in Instagram is training AI on your data. It’s nearly impossible to opt out
@tal@lemmy.today avatar

I don't have an Instagram account.

I mean, I guess maybe someone could take a picture of me and upload it to Instagram and label it or something. And it's possible to infer that two people are associated by having a picture containing both them that you run facial recognition or something on. I guess you could kind of think of that as being "my data" in an indirect sense.

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