301–310 of 675 posts
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Helium for diving is going to be a different mix than what's used for balloons. In diving it's used to reduce the partial pressure of oxygen, and also to quickly diffuse back out of tissues when returning to the surface. Very different application!
Sorry i was referencing "Balloon grade H is the least pure at 97.5 percent." from the diving article
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Lightning can mess you up in every country lol. Had to replace a PSU because of that, thankfully it was just that and minor damage to GPU.
Lightning damage is mostly an issue if the last-mile power lines are above ground. In my experience, power surges in urban areas with a decent grid are so rare that people generally don't bother protecting their devices.
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The big problem is purity. Fabs use grade 5 and 6 helium where contaminants are 1-10 parts per billion. The infrastructure to get it that pure becomes very specialized and any time the helium goes through a process it picks up so much contamination that recycling it would require the entire purifying and quality control infrastructure for pressure or temperature swing adsorption. Some fabs are starting to reuse heliu…
Do we have a process to make new helium from hydrogen?
Step 1: Put the helium in a blimp Step 2: Fly around the straight and over to Taiwan Step 3: Pump it into the chip factory There you go, solved it.
I remember hearing somewhere on this site that medical imaging got pretty good at building systems that recycle helium. Does chip manufacturing not do this or are the losses at their scale are still large enough that you need a substantial constant supply?
The big problem is purity. Fabs use grade 5 and 6 helium where contaminants are 1-10 parts per billion. The infrastructure to get it that pure becomes very specialized and any time the helium goes through a process it picks up so much contamination that recycling it would require the entire purifying and quality control infrastructure for pressure or temperature swing adsorption. Some fabs are starting to reuse heliu…
But what other processes do the fabs use the helium for then?
Step 1: Put the helium in a blimp Step 2: Fly around the straight and over to Taiwan Step 3: Pump it into the chip factory There you go, solved it.
Edit: oh right, know your chemistry...
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I will dare to admit aloud that I think maybe the founders were making a rational choice when they decided that only certain citizens would have the right to vote. As awful as that sounds, there are halfway decent arguments in favor. Maybe not just restricting to white wealthy landowners, but sometimes I do wonder if we would benefit from a filter that adequately screens for people 1) with real skin in the game and 2…
The problem is what to do with those people who can't vote. At worst, they'll rise up in arms and create an ever bigger mess. If you're not into social and demographic engineering, then you're going to face a real problem. My solution would be to get it over with and shoot everyone who disagrees with the system I'm trying to build. It sounds childish but it does actually genuinely work. It has been put in practice in…
Unless you aspire to the way of life in places like North Korea.
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I bought a Mac Mini in February and maxed out the ram and storage. Now, it seems like that was a prescient move, but honestly I really only bought it for photo editing and playing the new World of Warcraft expansion (don't judge me!).
Serious question: how does WoW still appeal to players except for habit social connections to keep them locked into the game? I used to spend nights and love the game, now, even with all these expansions it feels exactly like it was in 2006 but without what happened to the gaming world in the past 20 years.
Earlier quoted context omitted.
I will dare to admit aloud that I think maybe the founders were making a rational choice when they decided that only certain citizens would have the right to vote. As awful as that sounds, there are halfway decent arguments in favor. Maybe not just restricting to white wealthy landowners, but sometimes I do wonder if we would benefit from a filter that adequately screens for people 1) with real skin in the game and 2…
People with those characteristics are often wealthy: can't have "real skin in the game" if you're just a pleb with a mortgage, 2 kids and 2 cars in a middle-class neighborhood, right? At which point, once again, those with $$ are more equal than others. Sure, they might be better informed - which lets them figure out how best to corrupt the system. Edit: in fact, I could see a strong reason to DISALLOW anyone in the…