user134450

joined 1 year ago
[–] user134450@feddit.de 23 points 7 months ago (2 children)

https://en.wikipedia.org/wiki/Nick_Piantanida

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.

[–] user134450@feddit.de 3 points 7 months ago

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.

[–] user134450@feddit.de 7 points 7 months ago (1 children)

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.

[–] user134450@feddit.de 1 points 7 months ago

Maybe those were illegal smoke and honey melons 🤔

[–] user134450@feddit.de 12 points 8 months ago

Other commenters have pointed out the problems with overloading of connectors and reduced efficiency because of the added resistance but there is another really important reason not to chain power strips: circuit breakers work best against short circuits when the resistance between the breaker and the short is fairly low (for instance less than 0.5Ω) so that the current will quickly go over the rated current of the breaker. If the resistance is a lot higher because you have too many extensions between the breaker and the fault, the time the breaker needs to react will go up. Counterintuitively this usually means more energy will be turned to heat by the fault.

In extreme cases this can mean the difference between a broken power strip that you can just throw out and a burned down house.

[–] user134450@feddit.de 11 points 8 months ago

that is not a power plant. a power plant supplies power…

[–] user134450@feddit.de 2 points 8 months ago

Yep this is the official way. There is also the quick and dirty way of adding a new ID to your existing key to enable its use with a different email sender, but be wary of the info leaks this could lead to…

[–] user134450@feddit.de 5 points 8 months ago* (last edited 8 months ago)

first you would need to know what COP you could reasonably get, which among other things depends on the average outside temperature during heating season if you want to use an air sourced heat pump.

The COP can be in a largish spectrum depending on these factors but typical values are 3.5 for average homes in temperate climate. Higher if you live in a warmer climate and lower if you live closer to the arctic. If you want to really do the math it might be good to get help from a professional specialising in heat pumps.

Edit: this is for heating use only. A heat pump can also be used for cooling but then the climate effect is inverted.

[–] user134450@feddit.de 3 points 9 months ago

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.

[–] user134450@feddit.de 9 points 9 months ago (1 children)
[–] user134450@feddit.de 6 points 9 months ago* (last edited 9 months ago) (1 children)

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.

[–] user134450@feddit.de 7 points 9 months ago* (last edited 9 months ago) (3 children)

from the wiki article on Helium:

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.

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