This guy was in a remote controlled, parachute equipped gondola at 17km altitude wearing a pressurized suite.
His suit broke and even though the emergency descent of the gondola was immediately activated to descend safely, he later died from embolism (bubbles forming in the blood because of rapidly decreasing pressure).
Passenger jets cruise at about 11km so i gather it would be similar.
OpenWRT does not use liblzma or systemd so i think that one is pretty safe. I would also be surprised if Android included OpenSSH server binaries in that way.
In terms of modern shells being more complex in general: yes and no. modern shells pretty much always use some kind of electronic fusing, sometimes multiple kinds of electronic fuses. back then they had bombs, mines and grenades with literal clockwork inside and electronics was still very rare. also fuses and primary charges were not easy to produce reliably.
There has been some fusor research going on for decades. The issue that killed that direction of fusion research was ultimately that the electrons do not behave as the initial simple models suggested and in the real world the power loss from the fast electrons is just too big for any reasonably sized device to allow for self sustaining fusion.
If you want to be super exact about it it would be roughly 4 times the mass of limescale + mass of already dissolved CaCO3 in your tap water (you can look that up if you know the hardness index of your water).
But really just don't be stingy with citric acid and it will be fine is what i am saying.
Note that citric acid works a bit more nuanced than many other descalers: it acts as a chelating agent at high concentrations (2x the Ca2+ concentration) and is more effective at removing scale because of this effect, but at lower concentrations the effect might actually be reversed because it can form solid calcium citrate, which has a very low solubility in water.
If you are using citric acid based descaler you should make sure that you are always using enough of it to avoid the formation of calcium citrate.
also: you can calculate the carnot cycle efficiency of a solar cell as if it was a classical heat-power-machine, even though it has no visible moving parts.
the reason why this works and yields realistic results is because the basic principles of thermodynamics stay the same no matter if you are working with steam, combustion gasses or photons and electron gas inside a semiconductor.
that sounds almost exactly like the Reichsbürger in Germany. They also claim the current German state is actually just a corporation and the laws of the German empire are somehow still applicable. They also create their own passports. And of course they are deeply interconnected with Neo-nazis.
oh i must have missed a few orders of magnitude there. 6Mt of helium is a ridiculous amount though ... what is all that used for? according to WA that is about the water volume of the three gorges dam at STP
Edit: just read the report, wow, more than a quarter of all the helium is used just for "breathing mixes" which i assume means its for scuba diving.
an estimated 3000 metric tons of helium are generated per year throughout the lithosphere.
I think the main issue here is not that we are loosing helium on a planetary scale but that the easy to reach helium from gas wells is wasted. We will never run out of helium at our current rate of consumption before the sun goes nova, if we consider all sources on earth, but it will get a lot more expensive and the supply will get less steady.
its real, though not necessarily the type of window that you described. also exists in Turkish. i have a Turkish colleague who was very proud to explain the origin of that word to us in Germany :D .
this is extra tricky because they did not specify the exact kernel. mainline could be any of the kernels tagged as stable that you can build from linus' git tree. i know that in the past you could run a mainline linux on intel 368 chips but today you probably can not because official support was dropped a while ago.
trilateration actually (0_0)