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lemmy.world

Brokensilence410 , to mildlyinteresting in Mars from Earth, and Earth from Mars
@Brokensilence410@lemmy.world avatar

I never thought what the night sky on Mars would look like but now I really curious.

keeb420 ,

I imagine dark with fewer stars.

Catoblepas ,

Why fewer? Wouldn’t lack of atmospheric interference allow the light from more stars to reach your eyes on Mars?

PeterPoopshit , to programmerhumor in What the actual F**k???

The 1 trick Big Screen doesn’t want you to know. Instead of buying multiple monitors, just print out the window before minimizing it.

Xttweaponttx , to mildlyinfuriating in Youtube added shorts to the subscriptions page, pushing the subscriptions almost entirely off the page...

Ok don’t get me wrong (fuck shorts, they’re a terrible follow of a trend across so many platforms), but at least on mobile it seems like they’re shorts from people I subscribe to 🤷‍♂️ so I’m cool with supporting the folks I subscribe to, I guess

rostby , to aww in The underbite that stole my heart and makes me smile daily.

Rat

EuroNutellaMan , to technology in Top Extensions to Make YouTube Bearable
@EuroNutellaMan@lemmy.world avatar

Youtube non-stop basically prevents the “are you still watching” thing. Useful if you’re like me and listen to playlists on the background while studying.

Rhynoplaz , to aww in The underbite that stole my heart and makes me smile daily.

Awww! Looks just like my girl did 15 years ago. She looks more like a fuzzy rat now, but she’s still cute on her own stupid way.

BaumGeist , to technology in Advertising revenue in Twitter crashes by 50%

Translation: “I’m terrible at business, and I’m making it everyone else’s problem”

Valmond ,

Not losing money, just having “negative cash flow”.

BaumGeist ,

I had to search the euphemism to see if I was just out of the loop on the economics terminology, and if those legit were different concepts.

On the downside, they’re not. On the upside, Musk is setting a great example for how to stop getting accused of hoarding wealth

soulifix , to technology in Top Extensions to Make YouTube Bearable

I’ll gladly take YouTube Shorts Block. It is by far, to me, the most unnecessary thing I’ve found on YouTube. So when you watch one of these things, note that you cannot control the volume of them. It’s always mute or not mute. They also have a tendency to snap in place when you’re between videos and in doing so, will restart the video all over again. It is annoying.

I get it’s purpose, but I don’t need it in my face.

Vengefu1Tuna , to aww in The underbite that stole my heart and makes me smile daily.
@Vengefu1Tuna@lemmy.world avatar

I used to live next to little dogs that looked like this. I called them dubstep dogs, because when they would bark at me, it sounded like “wub wub wub!”

fearout , to news in The temperature in China hit 52.2°C (126°F)
@fearout@kbin.social avatar

Reposting my comment from another similar thread ‘cause I think it’s kind of important to add.

Ok, so it doesn’t mention wet bulb temperature anywhere, so I went to figure it out. The first thing I was surprised with is apparently most of online calculators don’t take in values higher than 50C.

I couldn’t find the exact data about humidity for that day, but it has been 35-40%+ at a minimum for most days in that region, sometimes even reaching 90%.

So, 52C at around 40% humidity is 37.5C in wet bulb temp. The point of survivability is around 35, and most humans should be able to withstand 37.5 for several hours, but it’s much worse for sick or elderly. 39 is often a death sentence even for healthy humans after just two hours — your body can no longer lose heat and you bake from the inside. That’s like having an unstoppable runaway fever. And with that humidity it’s reached at 54C.

We’re dangerously close to that.

beigeoat ,
@beigeoat@lemmy.zip avatar

From what I know the critical wet bulb temperature is ~31.5°C. it was from a study done last year.

theguardian.com/…/why-you-need-to-worry-about-the…

fearout ,
@fearout@kbin.social avatar

It’s a bit different depending on your health and all that. But 35 WBT is a definite point for everyone (since our bodies run at 36–37C). Kinda like the difference between “some will die” and “most will die”.

beigeoat ,
@beigeoat@lemmy.zip avatar

I mean to say that the wet bulb temperature at which most will die is ~31.5°C, the gaurdian report I linked is saying that the 35°C number comes from a 2010 study, whereas the findings of the 2022 study found the number to be much lower ~31.5°C.

fearout , (edited )
@fearout@kbin.social avatar

It’s probably a measure for persistent temperature then. Like, if you lock someone in a room at that temperature (or if it wouldn’t cool down at night, for example), then that person would be dead no matter what after some amount of hours or days.

35 is more of a real-life guideline, since it does cool down at night and you don’t need to withstand this temperature persistently and indefinitely.

And for the last several years there have been lots of places that exceeded 31.5 WBT during the day. Hell, you can probably find several places with that WBT right now. But since people don’t drop dead immediately and need time to heat up, it’s still survivable.

Think about it in terms of a 2D graph. You need to know the duration in addition to temperature to gauge survivability. A million degrees is survivable for a femtosecond, 35 for an average earth day, and ~31 indefinitely.

PeleSpirit ,

From @beigegat’s article it says that from real expieriences it’s 31.5C

The oft-cited 35C value comes from a 2010 theoretical study. However, research co-authored by Kenney this year found that the real threshold our bodies can tolerate could be far lower. “Our data is actual human subject data and shows that the critical wet-bulb temperature is closer to 31.5C,” he says.

Aux ,

If that was true, people would die in Russian sauna - 80-90° at 100% humidity with 10-20 minute sessions.

fearout , (edited )
@fearout@kbin.social avatar

Well, people do die in saunas. More often than you might think. And those who can sit through 20 minutes are usually already accustomed to them, it’s not like people can sit for a long time the first time. Stick an unprepared elderly person there and it’s often not going to end well.

Also, right after intense sauna sessions (and in between as well) people dunk themselves into very cold plunge pools or snowdrifts to quickly cool off.

And you got the temperature/humidity ratios wrong. 100% humidity is used in a hammam, a Turkish-style steam room, and those are kept at around 45-55C. Russian saunas never exceed 90%, most are kept at around 70%.

Have you been to one and looked at the hydrometer? It’s really hard to raise the humidity above 70–80%, and the usual for most people 1-2 ladles per ~10 mins barely raises the humidity above 60%.

Aux ,

Yes, been to a lot of times.

AssPennies ,

I read that as 1-2 ladies per ~10 min… talk about death by snu snu.

eek2121 ,

An absolute death sentence for folks without air conditioning or another means to stay cool.

Pixlbabble ,

Time to make some mud and make like pigs I suppose?

Shardikprime ,

I know the predator movie was preparing us for something

synae ,
@synae@lemmy.sdf.org avatar

Dillon! You son of a bitch

Shardikprime ,

Heterosexual engorged arm penises grabbing ensues

Crucible_Fodder ,

wet mud would be hotter than you can survive to for a long period of time

fermuch ,
@fermuch@lemmy.ml avatar

That works, until… Until the power goes out because everyone has their AC on maximum. After that, it becomes a fight of who has a bigger generator and more gas stored, or who has solar power for the AC.

Crucible_Fodder ,

Yeah, that makes me think that data was just wrong. Every homeless in the area would be dead with those temps and humidities.

cley_faye ,

Homeless have been dying during summer and winter for years. It’s just, as with too many things, the new normal and not newsworthy. If they started dying from critical weather I’m not sure we would even know.

ChickenLadyLovesLife ,

Every homeless in the area would be dead with those temps and humidities.

Shhhh … don’t give the elites running our planet another reason to ignore global warming.

AstroKevin ,

I don’t want to be rude, and I completely am all for combating climate change, but 39C is not baking your insides…

I have been deployed to multiple places that were 52C (~125F) in the day/night with high humidity levels, in full long sleeve/pants for 8 hours at a time. 39C (~102F) is hot, but not bake you from the inside type of hot.

Elderly and sick are people not included in what I said above for obvious reasons.

fearout ,
@fearout@kbin.social avatar

I find it pretty funny that people are arguing both “35 WBT is pretty fine” and “31.5 WBT is a death sentence”.

Yet somewhere in that range seems to be the consensus for an actual “your body is on the clock and you’re not surviving it for a prolonged time” situation.

I don’t know your personal experience and how dangerous it was in regards to temperature, but high temperature environments start feeling pretty humid at like ~50%, so you still pretty much need an actual temperature/humidity reading to gauge it correctly.

So guys, take it to the scientists :) I’m not talking out of my ass here, rather quoting research data. There are a couple dozen papers listed in the link above, and most seem to agree on the dangerous temp region. Read their methodology and reasoning if you’re interested to learn more.

AstroKevin ,

Oh I’m not arguing it’s a hot temp and exerting yourself in those temps is very much a death sentence; especially without water. I’m saying that many people in the world have lived through those temperatures. Research studies have a way of making things a bit more dire than what is normally human survivable, probably for legal/medical moral reasons.

The US military definitely has rules against 40+ WBT and state how many hours of work per hours of rest we could have in high temp+humidity levels. However, I, and anyone who had to deploy or live in East Africa (like Djibouti) or the Middle East can definitely attest, 50WBT is survivable for 8 hours days. Again, not talkin’ elderly or sick persons.

platysalty , to aww in "...meow! :333"

Watch out, this is how they get you

Master , to programmerhumor in Dumb human doesnt know what two handed means

Hand and a half sword must be lit!

Wilziac , to mildlyinfuriating in Youtube added shorts to the subscriptions page, pushing the subscriptions almost entirely off the page...

But now they separate your subscribed channel’s shorts for their regular videos. Since most channels put out 3-6 shorts a day, all they did was clog my feed. Now I can at least ignore the shorts section to see the long form videos I care about.

Dmian , to aww in The underbite that stole my heart and makes me smile daily.
@Dmian@lemmy.world avatar

He looks like he’s saying “Gimmmmmme…” in a very low-pitched voice.

lavadrop , to memes in But I love death

You can eat both vegetables and dead animals at the same time. We call that a stew.

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