Given her situation, that might still not count as Evil, though.

Especially them.

Yes. People seem to think the bends always happens on exposure to weird pressures, but it just doesn’t. I guess they’re understandably imagining it’s the same as hot or cold.

(though no idea about the effects on the human body from such a sudden change)

Well, enough delta p is entirely capable of squishing an entire person through a thumb-sized hole, and while there’s no hole here I image there’d still be some sort of shock wave, and the air already in your lungs returning to normal volume suddenly would be uncomfortable. Don’t go too deep the first time, definitely ease into it.

Interestingly just 1 atm is fairly harmless. The first time someone got caught in a vacuum chamber they weren’t sure what they’d find, but the guy just got up and said his ears hurt.

It’s a bit oversimplified, actually. Sound bounces off of discontinuities in the medium, which is why foam works. You just have to control the scattering somehow.

The big problem with using oobleck or whatever is it responds to shear, and shear can’t travel through air. You could use it for earthquake protection, though, or if you could channel compressive waves from the air into shear form using a fancy bridge like in OP.

Also, shear-thinning fluid is a thing too.

Lemmy doesn’t really have the traffic to support ultra-niche communities in general yet, sadly.

Based just on the name even, snake oil. WTF is a “bioelectric wave”?

Yeah, OP didn’t even phrase it like nobody else could have thought of it, which is a frequent pitfall for these kinds of questions. The experts that can give the best answers hate that. It’s implicitly saying their years of study aren’t worth much.

In terms of engineering, it does. Micro meteorite protection and heat management can both be provided by normal garments. UV protection is obviously easy enough too. Breathing gas is a bit less convenient, but still not as tricky as making a suit that’s both rigid enough to reliably hold several PSI in and flexible enough to comfortably work in. That’s why the elastic suits are being researched like they are.

… That’s actually a good point. I’m guessing since the digestive tract is flexible and isn’t held open to the outside all the time, it wouldn’t cause problems with things deep inside. I also think it’s inevitable that if you did shit yourself in it, suction would kick in at some point and make it all a bit more dramatic. And then it would boil-freeze off into space, and be icy cold. That might still be better than pooping a sealed space suit, though.

I think it’s like a third of an atmosphere or something. Enough to comfortably achieve the same partial pressure of oxygen as normal Earth air, by providing it pure.

Well, that’s a bit of a salty tangent, but yeah, I guess they could take a class warfare sort of line on it. The other classical options are going full luddite, or just blaming a minority. Maybe they’ll come up with something new, because I have trouble picturing laid off creatives spouting any of these.

Right now, I think people are firmly in the denial stage. For whatever reason the thread isn’t federating properly for me, but on beehaw I can see others in here saying human exceptionalism stuff, which is kind of not in accordance with science.

Expect a lot more “white collar workers laid off due to AI” posts coming. I wonder how long it will take for a (very well resourced, those are status-y jobs) movement to form in response.

As with most brain questions, nobody knows exactly.

One theory for the purpose of it, is to prevent us from confusing things we dreamed about with things that actually happened.

Edit: Lol, this always gets downvoted, but it’s the truth. We know nothing about the brain; almost all the studies that get reported on are basically this.

Wow. This question is a good but very specific observation, and I did not expect an actual answer.

Atmospheric nitrogen is useless to most life, as it’s extremely hard to break down into other nitrogen compounds. Certain bacteria are the exception, and they’re very important both to ecology and human agriculture (although less so since the Haber process was invented and artificial fertilisers became available). The other natural source of nitrogen compounds is lightning strikes.

Oxygen is completely the opposite. It’s unstable in an Earth-like environment (which is why fires happen), and if you find it in such an environment there must be something special producing it continuously. It’s not the only biomarker astronomers look for, either. There was a planet with insane amounts of a chemical called DMS found recently, and that’s just as eye-catching, if weirder.

Deep sea divers also use a nitrogen mix (nitrox) to stay alive and help prevent the bends

You’ve actually got that somewhat backwards. To go really deep you switch to heliox or similar. Nitrox is for intermediate depths where you need less oxygen than in the normal nitrogen-oxygen atmosphere, but nitrogen narcosis isn’t an issue yet.

Interesting question! Mandatory note that natural languages by definition aren’t designed, and are always evolving, so if enough native speakers do something it is correct.

There’s a certain level of irony in correcting people’s language while not reading the original question properly yourself.

No, it’s not worth it. Honestly that’s great all on it’s own. I guess they never had a reason to update it, then, since anybody that needs a more accurate value would just measure it themselves.

It looks like they went back to the original litre definition a few decades later. I’m not sure why they thought defining volume by mass rather than geometry was better in 1901, anyway. Some fun facts about the kilogram itself, since I never get to talk about this stuff:

Since 2019 the kilogram has been based on a “Kibble balance”, which is a contraption that precisely measures the force produced by electromagnetism. The necessary electricity is provided by circuit with a material that has quantised resistance near absolute zero, and a superconducting junction which produces oscillation exactly tied to the current flowing through, which is itself timed by atomic clock. This allows you to measure it out using just the new fixed value of Plank’s constant.

Before 2019 there was just a chunk of metal the was the kilogram, which is hilariously low-tech.

It also depends on latitude, and local geology and…

Maybe it is just weighted by surface area, you’re right, and that’s what I meant by “surface average”.

G is also fixed in GR, although it’s not guaranteed to manifest in a neat relation like that in every situation because spacetime curvature has a lot of components at every point, and they interact super nonlinearly.