it’s on you for not using ad blocker in current year

there was chrome (and firefox probably?) extension that went through your all fb liked pages and unsubscribed from them so that when it’s done timeline is gone entirely. fb went after its dev, removed that extension and banned him forever because it kept people off fb https://www.businessinsider.com/facebook-bans-unfollow-everything-developer-delete-news-feed-2021-10 doing this all manually still worked back then, not sure about today

Facebook’s letter took him by surprise, he said, adding that Unfollow Everything had only 2,500 weekly active users and 10,000 downloads.

“It was definitely growing, but it wasn’t huge,” he said.

“Apart from that I just very much saw it as something that improves the Facebook experience for Facebook users,” he added, saying he got “amazing feedback” from people saying they “were using Facebook in a way that was much healthier for them.”

slightly healthier relationship with attention devouring parasite in your pocket? not on zucc’s watch, ALL contents of your skull are to be sourced from and licensed to meta platforms inc exclusively

the waste heat comes from cryogenics system that keeps all of this helium at below 3K. turns out you need to spend a lot of energy to cool down things to temperatures this low

if there was a way of faking presence of lower display, then you have free tv and extra screen

this is some idiocracy level shit tho

you can’t turn a gas into liquid by compression alone if temperature is above critical point, you also need to cool it down. separation is done by fractional distillation, but the reason it’s done is mostly about oxygen (medical and steelmaking among some other uses). for nitrogen it’s somewhere about -150C. first air is stripped of water and carbon dioxide, then it’s turned into a liquid, then it’s separated into oxygen, nitrogen and argon, and some large specialized plants also separate xenon, krypton and neon

if you don’t actually care for it being a liquid, there’s another method called pressure swing adsorption that separates gases based on how tightly do they bind to porous surfaces under pressure. this is how medical oxygen concentrators work

making liquid nitrogen is pretty efficient these days, as in not much more energy is used than is actually needed

shooting down bosses stupid ideas is #1 productivity tip for professionals (like most people on lemmy are)

as i understand, this is what bellingcat uses as a major source of data when reporting on russian activities

“It is one of the paradoxes of modern Russia: on the one hand, these services are illegal and rely on leaked data, yet on the other, they are far more convenient for day-to-day police work than the multitude of official departmental databases,”

gaben on piracy: “We think there is a fundamental misconception about piracy. Piracy is almost always a service problem and not a pricing problem,”

There is a thermal energy storage included as s major part. This works because compressing CO2 to 55atm adiabatically heats it up to some 450-ish C, so that heat is pretty high grade, and only the final stage cools it down with heat exchanger open to air. In discharging direction, some heat is taken from outside air to evaporate part of CO2 and heat stored is used up

compressors, turbines (like steam turbines), piping, some of which heat-resistant (500C), container for liquid carbon dioxide, lots of plastic for the bubble, something for thermal storage, dry and clean carbon dioxide, these aren’t unusual or restricted resources, don’t depend on critical raw materials or anything like that

Compressed air without heat recovery is more like 30%, so this is huge

Carbon dioxide can be liquefied relatively easily which is what i guess makes this efficient

wood, magnesium, aluminum, plastics, they say titanium is bad, but i’d expect iron, nickel, manganese, tungsten, silver, maybe zinc to be worse