Helium Is Hard to Replace

(construction-physics.com)

187 points | by JumpCrisscross 5 hours ago

17 comments

  • sixhobbits 4 hours ago

    I really enjoyed this oddlots podcast episode that covered similar points and had a lot of "wat" moments for me, including the US selling off its strategic helium reserves at a loss because politicians labeled it "party baloon reserve", and how long it takes to produce naturally and how hard it is to find, process and transport.

    https://m.youtube.com/watch?v=bjc6MgUY0BE

    • parineum 4 hours ago

      Part of the reason there's a shortage is because the US was the main supplier. There was no market incentive for anyone to invest into helium extraction.

      It'd be like if the US used it's strategic oil reserve to supply the US with oil at a low price at all times.

      A strategic reserve isn't supposed to be used as a supply. The existence of a strategic reserve shouldn't have an effect on the supply of helium except in an emergency. The fact that selling the helium reserve could create a shortage should tell you that it wasn't being used as a reserve but as a supply.

      The US was, essentially, artificial subsidizing the price of helium. What's happening now is that people are actually paying the real price of helium.

      • marcosdumay 3 hours ago

        The US government decided (maybe correctly, IDK) some years ago that their strategic helium reserves were too high (and thus expensive).

        There were several announcements, a lot of discussion, and a long process before they started selling it. It was also a temporary action, with a well known end-date (that TBH, I never looked at). It had a known and constant small pressure over investments, it wasn't something that destabilized a market.

        • j-bos 1 hour ago

          Isn't it like underground? Why would it be expensive?

      • actionfromafar 4 hours ago

        Exactly right. We may yet find out what happens when someone sells the strategic oil reserve.

        • rootusrootus 4 hours ago

          Despite all the online rhetoric, and the popularity of mis-naming political movements, sometimes I think the people who hate America the most and want it to fail are Americans themselves.

          • ben_w 2 hours ago

            Nah; last but one job I had an Iranian coworker, and I asked if the way the regime calls Israel and the US the "Great Satan and Little Satan" was serious or a quirk of translation.

            Apparently the regime is quite serious about the US being the actual devil.

            • cestith 1 hour ago

              Specifically, the US federal government. Just like most Americans don’t hate the people of Russia or Iran any more than the folks the next town over, I’ve never met someone from Iran, Afghanistan, Syria, Pakistan, or pretty much anywhere else who hates all Americans. I’m sure they exist, but probably as a small minority. There’s plenty of reason to hate our government though, especially if it has threatened to destroy your entire civilization.

              • GeorgeWBasic 1 hour ago

                Are you aware of what the US regime has done to Iran? There's a reason they say that.

                • drowsspa 1 hour ago

                  I think the issue is about our not believing what religious people themselves tell us about their reasoning

                  • IAmBroom 1 hour ago

                    God's angels typically don't bomb your little girl's school.

                    All I'm saying is, I could see how someone who believes Satan influences the world would come to that idea.

                  • elzbardico 2 hours ago

                    It is not a matter of hate or love. But the fact that people in charge doesn't give a fuck at any other thing beyond their personal interests. But this problem is not exclusive to America.

                    • senderista 3 hours ago

                      I think that's broadly true: both sides want America to fail when the other side is in power in order to prove they're right.

                      • drfloyd51 1 hour ago

                        Strong disagree.

                        One side is clearly interested in helping others simply because they need help. The other is clearly interested in help others that they can relate to (look like themselves) and have earned the right to help (such as believing in the right god.) or only helping people that can help them back.

                        • Quite a few on one side seem to want to "help others" so they can demonstrate publicly how awesome and righteous they are. And we can even falsify this hypothesis a bit... such people would, I speculate, be more interested in the appearance of helping than in the substance of helping. They'll tend to arrange the help in such a way as to garner the most publicity. And, most of all, they'll allocate their efforts such that they're vocal about how they're the good guys doing all the helping more than they're actively helping. Just to make sure everyone notices.

                          • ImPostingOnHN 3 minutes ago

                            > Quite a few on one side seem to want to "help others" so they can demonstrate publicly how awesome and righteous they are

                            Being awesome because you help those in need? How horrible!

                            > more interested in the appearance of helping than in the substance of helping

                            This is a common and tired talking point: "virtue signalling". It often comes from people who are less helpful than others, and resent how more helpful people receive accolades. Their own personal judgement about whether something actually helps isn't authoritative, and is usually motivated reasoning anyways.

                        • gcanyon 2 hours ago

                          I don't want "the other side" to fail, and I absolutely don't wan the U.S. to fail when they are in power. I want the U.S. to succeed, and for "the other side" to be competent and fair.

                          • krsw 2 hours ago

                            Classic enlightened centrist take. One side yells when the other dismantles the institutions that let the country work, so both sides are equally bad.

                            • californical 1 hour ago

                              Both bad, and one is more bad than the other. They’re not equally bad but they are both very bad

                            • rootusrootus 1 hour ago

                              The enlightened centrist take is not entirely wrong, though. The left definitely has some blind spots, among them their purist dedication to perfect morals and a willingness to tell anyone who does not perfectly agree to piss off.

                              While the right is comfortable holding their nose when white supremacists hang around because it gets them a bigger coalition, the left will excommunicate someone for saying out loud that they think trans women are not exactly equivalent to biological women. This shrinking of the coalition is how we ended up enduring another Trump presidency.

                              Not to mention the complete fiasco that was the 2024 presidential race. We should have thrown out the entirety of DNC leadership several levels deep for letting that happen.

                              • cestith 52 minutes ago

                                There’s a bit of a duality about perfect agreement within the voters for the party’s candidates and somewhat within the party membership itself. Yeah, there’s a lot of telling each other to piss off. There’s a lot of jockeying for the platform and the primaries. But come the general, it’s a minority of the voters who will sit it out or vote for a minor party. Sometimes it’s a large enough minority to hand things to the Republicans, though.

                          • mschuster91 2 hours ago

                            > sometimes I think the people who hate America the most and want it to fail are Americans themselves.

                            That's because the US (and the UK) are about the only countries in this world that haven't had the entirety of their legal, economical and political system completely revamped at least once in the last 100 years - most countries average more than that.

                            At the same time, such a revamp is desperately needed - the issues with the status quo are reeking - and everyone knows that it is highly, highly unlikely to get that done by ordinary democratic means due to the sheer inertia of hundreds of years of fossilized bureaucracy and individual/party interests.

                            And that is why so many people tend to vote for whoever shouts "destroy the country" the loudest - and not just in the US (MAGA) or UK ("Reform"), but also in Germany (AfD), Spain (Vox) or Italy (Salvini/Meloni), where economic inequality and perspectivelessness has hit absurd levels. Let it all burn to ashes, burn everything, even if one goes down with the fire, eat the rich, and try to build something more sane this time.

                            • spookie 1 hour ago

                              Would like to add Vox is nowhere near the other's popularity, and has received substantial donations from... Hungary. A total of 6.5 million euros during the 2023 elections.

                              • rootusrootus 1 hour ago

                                > That's because the US (and the UK) are about the only countries in this world that haven't had the entirety of their legal, economical and political system completely revamped at least once in the last 100 years - most countries average more than that.

                                I usually get downvoted when I make an observation along these lines, but I will go for it again -- IMO some of the reason Europe has pulled ahead in infrastructure and policy is because a couple world wars last century reduced much of it to rubble, including the systems of governance. The UK mostly escaped that, and the US escaped nearly all of it. Which is one reason we can still have a lot of old electrical infrastructure, for example, that is pushing 100 years old, and a Constitutional system 250 years old.

                                I think a major problem with the system in the US is the difficulty changing it. There is a balance, and a lot of room for differing opinions on how flexible it really ought to be, but I suspect there is broad agreement that it is too inflexible. We rely too much on changing interpretations rather than changing the fundamentals.

                                Perhaps we really do need to risk a second Constitutional Convention. Or we will end up with a worse alternative.

                                • nradov 1 hour ago

                                  If Europe has "pulled ahead in infrastructure and policy" then why do they have nothing to show for it? They can't even protect their own sea lines of communication.

                            • dave78 3 hours ago

                              About half of the strategic petroleum reserve was sold off in 2022.

                          • amelius 3 hours ago

                            I'm guessing you can find a supply of helium near the top of the atmosphere :)

                            • dmitrygr 2 hours ago

                              Turns out -- no, it permanently escapes to space with the help of the solar wind

                              • zozbot234 2 hours ago

                                The overall amount of helium in the atmosphere is still more than enough for the foreseeable future, and it could be extracted (albeit at high energy cost) by augmenting existing air separation units (ASU's). Of course natural gas wells currently provide an easier to extract source, seeing as the concentration there is way higher.

                                • nradov 22 minutes ago

                                  Helium is only 5ppm in the atmosphere. Extracting useful quantities of it that way will probably never be economically viable. In other words, if for some reason we can no longer get helium from natural gas wells then it will be cheaper to just let patients die instead of doing cryogenic distillation of helium from the atmosphere to run MRI machines.

                                  • zozbot234 14 minutes ago

                                    We are already separating out the majority elements from air via ASU plants, so we should compare the abundance of helium in what is left from typical extraction. And that looks quite viable.

                                • dguest 1 hour ago

                                  Space is at the top of the atmosphere right? That place is full of stars producing helium by the teragram.

                                  GP ain't wrong, but the phrasing implied we'd have it closer by than it actually is.

                                  • nomel 1 hour ago

                                    No, they're entirely incorrect because they used the word "near". There is no practically usable helium near the top of the atmosphere.

                                    But, I'm also confident they were making a silly joke.

                                  • stvltvs 2 hours ago

                                    Even if it didn't, collecting it seems wildly expensive.

                                    • subscribed 54 minutes ago

                                      Or free if we managed to run solar powered sails (or so) skirting the very top and autonomously sending the harvest down.

                                      • krisoft 29 minutes ago

                                        If by “free” you mean “very very expensive” then i agree with you. It would cost a fortune to even just attempt a pilot project proving feasability. Then we would need to send up regular replacements to the “sending the harvest down” hardware at the minimum. Just imagining the cost of a tank which can be launched into space, autonomously dock with the collector sails, then deorbit and land makes my head spin. And then doing that at scale, paying people to launch it, paying people to operate the system.

                                        It could be free if we imagine some crazy advances in autonomous self-replicating spacecrafts. But by then we live in the post-scarcity diamond age probably.

                              • alex_young 2 hours ago

                                <10% of natural gas plants recover helium. All of them extract it. The remaining >90% vent it into the atmosphere. This is an engineering / money problem, not a physics problem.

                                • jandrese 2 hours ago

                                  It becomes a larger problem as the world moves away from fossil fuels like natural gas.

                                  I'm not a chemist but are there really no alternatives? Running fusion plants to make helium seems very unlikely to become cost effective, but it would be quite the sci-fi future if we filled party balloons by bombarding hydrogen with free protons.

                                  I guess there aren't any easy molecules to break apart to get helium either since its a noble gas. No hydrolyses type solutions because there aren't any molecules that incorporate helium. I guess radioactive decay, but even that is ultimately limited over long enough timescales.

                                  • cubefox 15 minutes ago

                                    > It becomes a larger problem as the world moves away from fossil fuels like natural gas.

                                    I actually remember a similar problem from some compound that was mainly formed as a byproduct of some old Canadian nuclear reactor design. As the tech gets phased out, the material is no longer available in significant quantities, with consequences for a projects that need it (like Iter).

                                    Some things can be cheap if they are produced as a byproduct, but very expensive if they have to be obtained directly.

                                    • triceratops 1 hour ago

                                      > it would be quite the sci-fi future if we filled party balloons by bombarding hydrogen

                                      How dangerous are party balloons filled with hydrogen? Not a whole balloon arch obviously.

                                      • jandrese 1 hour ago

                                        I had a science teacher that did this in class, then taped a match on the end of a yardstick and held it under the balloon. They made quite a bang. I wouldn't want to be right next to it when it went off.

                                        • triceratops 1 hour ago

                                          Yeah I've seen that demonstration in school too. But if the teacher was willing to do it in school, with kids, how dangerous was it really?

                                          • Neywiny 50 minutes ago

                                            Along with the other commenter, I'll add that a classroom is usually a lot bigger than a home dining room or other domestic party locations. That size also helps things dissipate instead of reflect. Not sure by how much but I'm sure it does something.

                                            • cyberax 1 hour ago

                                              You can get permanent hearing damage from that demonstration if you stand right next to that balloon.

                                      • kakacik 16 minutes ago

                                        As usual - 'there is scarcity of XYZ' -> price it accordingly, and markets will align quickly. Dont expecr private companies to have long term thinking, thats not how bonuses for those steering the wheel are set up.

                                      • Aboutplants 4 hours ago

                                        I’m not really worried about any potential helium shortage. We are actually really good at extracting it, the problem is purely economics and as soon as prices get to the point where investment is warranted then there will continue to be adequate supplies. The main issue right now is the proper demand increase forecasts do not align with potential investments costs and helium extraction investment does just not make much economic sense given current forecast Helium costs.

                                        • vlovich123 3 hours ago

                                          If demand keeps growing (as it has been), we've got ~40-60 years of "cheap" reserves left. As helium prices start to increase, you've got price shocks down the supply chain.

                                          There's about 40-70 billion cubic meters of economically recoverable (assuming future technology development + price increases). The complete total upper end of known geological reserves is ~60-100 billion cubic meters - that's about correct in terms of order of magnitude even if we find new deposits.

                                          Current consumption is 180 million cubic meters/year. At a growth of 3%, you've got 80-140 years before we run out. At 5% growth it's 50-90 years.

                                          Saying "I'm not worried about it" is true in the myopically selfish "I personally won't have to care about it". It's conceivable that your children will be dealing with it and definitely grandchildren in a very real existentially meaningful way.

                                          • dtech 2 hours ago

                                            It's very hard if not impossible to do predictions over century timescales. How relevant are 1926 resource problems to today? If you wrote your comment in 1926 you would be talking about rubber, fertilizer, coal, wood or oil, and 4 out of those 5 are mostly solved today.

                                            At those timescales, mining the moon or Jupiter for helium might be realistic, so the limits of earth are no longer upper bounds.

                                            • pureliquidhw 2 hours ago

                                              I agree century timescales are tough, I'm not convinced 4 of 5 of your listed things have been solved.

                                              Rubber has been replaced with oil.

                                              Fertilizer has been replaced with Natural Gas that comes from the same place as oil.

                                              Coal usage has been replaced/displaced primarily by natural gas, see above.

                                              Wood, or deforestation, was a real problem in the 1920's, but many uses were replaced by plastics (oil) and natural gas. Sustainable forestry helped a ton here too once it hit the paper industry's bottom line.

                                              Oil is certainly not solved, so we solved 4 out of 5 with the 5th.

                                              • achierius 55 minutes ago

                                                Exactly -- that means that any analysis based on the current (as of 1926) 'reserves' or 'production capacity' for rubber/fertilizer/coal/wood would have been invalidated as soon as we switched to using oil instead. Imagine if instead of harvesting helium directly we find an economic way to split nitrogen (somehow, who knows). At that point, what you'd have to have forecasted would be the 'reserves' of nitrogen, which are functionally infinite.

                                              • ben_w 2 hours ago

                                                We're definitely not mining the moon for helium, but might well end up "mining" the gas giants.

                                              • victorbjorklund 2 hours ago

                                                Isn’t those calculations pretty unreliable? It’s like those predictions we only have 5 or 10 years of oil left. And then we find more oil or better extraction process and we got another 10 years and so on.

                                                • nomel 1 hour ago

                                                  > As helium prices start to increase, you've got price shocks down the supply chain.

                                                  No shock at all if the price is relative to what's left. Shouldn't boring market pressures guarantee this, unless the government gets involved?

                                                  • wongarsu 2 hours ago

                                                    Just in time to start extracting helium on Mars

                                                    • elzbardico 2 hours ago

                                                      Maybe we will build chips in space in vacuum?

                                                      • cheschire 3 hours ago

                                                        > myopically selfish

                                                        A standard western personality trait I’ve been confronted with repeatedly over the last… hmm. Well that got depressing real quick.

                                                    • JohnMakin 34 minutes ago

                                                      The long tail economic ramifications that this disruption to the supply chain will have could be potentially decades, in ways that will most certainly be catastrophic, and what's concerning to me is how small of a percentage of the population (at least in the US) is grasping this.

                                                      • yyyk 1 hour ago

                                                        It looks like that by simply reducing use in welding, lifting, and purging gas (all with clear alternatives) and maybe also 'leak detection' and 'other' (not expounded on in the article), they can fill in for the entire Qatari output, and that's without including extra production and recycling which is quiet possible.

                                                        • throw0101d 4 hours ago
                                                          • nradov 4 hours ago

                                                            For diving, there has been some experimental use of hydrogen as a partial replacement for helium in breathing gas mixtures. This obviously increases the risk of fires and the physiological effects aren't fully understood. But it might eventually be used in commercial, military, and exploration diving for those cases where we need to send humans really deep and using an atmospheric suit isn't an option. Regular sport divers will probably never breathe hydrogen.

                                                            https://indepthmag.com/hydrogen-dreamin/

                                                            • snek_case 3 hours ago

                                                              For divers, we really should be focusing on building better underwater drones. Remove the risk to human life entirely. You don't need AI either, just a remote-controlled machine with a cable that goes up to the surface. I know there is some loss in dexterity with current robot arms, but building more dexterous system seems like it's not an impossible task.

                                                              • nradov 3 hours ago

                                                                ROVs have already reduced the demand for commercial divers on some types of work. But it's going to take decades (if ever) until they're able to do the full range of human tasks. Some construction work has to be done essentially by feel in near-zero visibility so using an ROV for that would require advanced force feedback mechanisms, maybe imaging sonar and other sensors. Not necessarily impossible, but extraordinarily difficult and extremely expensive with current technology.

                                                                For sport and exploration divers, going there yourself is kind of the whole point. I'm not interested in watching a video feed from an underwater drone.

                                                            • aeternum 1 hour ago

                                                              Helium luckily is the second most abundant element in the universe. A good reason to go to the stars.

                                                              • smegger001 1 hour ago

                                                                mostly out of our reach unless you have way of removing it from the sun without your retrieval craft melting or being captured by the suns gravity well or from gas giants without the onboard system being fried by the intense radiation or again captured by the gravitation.

                                                                • IAmBroom 28 minutes ago

                                                                  A round-trip lasting centuries is not a practical solution. Star Trek is fiction.

                                                                  • everdrive 1 hour ago

                                                                    We might find it quite difficult to extract from the stars, that said.

                                                                    • ASalazarMX 1 hour ago

                                                                      It might be expensive compared to improved Earth mining, but lunar regolite is rich in Helium 3, there would be no need to mine stars.

                                                                      The funny part is, lunar regolite soaks Helium from its exposure to solar wind, so mining it would be an indirect mining of a star, our sun.

                                                                      • adrian_b 50 minutes ago

                                                                        It is pretty much impossible to extract it from stars, but the 4 big planets have large amounts of helium.

                                                                        It would be quite expensive to extract it from there, due to the necessity of escaping from their gravitational field, but not impossible.

                                                                        • kakacik 20 minutes ago

                                                                          If we have such advanced tech, and trip to big planets would seem economically feasible, I think we will be long beyond the point of desperately needing transporting helium to do such crazy trips.

                                                                    • LorenDB 4 hours ago

                                                                      Is there any way to actually produce helium other than nuclear fusion? I would assume not, but I'm not an expert in this field.

                                                                      • nradov 4 hours ago

                                                                        Helium is produced naturally by radioactive decay underground. There is no way to artificially produce it in useful quantities.

                                                                        But we can capture more of it from natural gas wells. Today much helium is just vented off and wasted at wellheads. As the price rises it makes sense to invest in cryogenic helium capture equipment for more wells.

                                                                        • adrian_b 42 minutes ago

                                                                          Helium exists in great quantities in the 4 big planets, which unlike Earth have strong enough gravity to retain it.

                                                                          Others have mentioned that some helium exists on the Moon, where it comes from the solar wind. The use of the helium 3 from there has been suggested for nuclear fusion, if the fusion of helium 3 became possible (it is much more difficult than the fusion of tritium with deuterium, which is the main approach attempted for now).

                                                                          However, for fusion relatively small amounts could still be useful. For other uses the amount of lunar helium might not be enough, even when ignoring how expensive it would be to transport it from there.

                                                                          • adrianN 4 hours ago

                                                                            It can form during radioactive decay of uranium and thorium.

                                                                            • wat10000 4 hours ago

                                                                              And that's where all of our helium actually comes from. Any radioactive decay that emits alpha particles generates helium, since alpha particles are just helium nuclei. When that happens underground, the helium can get trapped. It tends to get trapped in the same places that natural gas gets trapped, so natural gas extraction often encounters helium as well.

                                                                              Similar to oil and gas (although a completely different mechanism), it takes deep time to accumulate, but can be extracted much, much faster. So although new helium is being generated underground all the time, we can still run out in a practical sense.

                                                                              • BobaFloutist 1 hour ago

                                                                                Dumb question, but is there any world where a fission reactor could reasonably genrate waste with a short enough half-life to produce meaningful amounts of helium as a side-gig?

                                                                                • wat10000 1 hour ago

                                                                                  I'd say no, although the amount of helium that's produced is small enough that it's not quite as absurd as I would have thought. Worldwide helium production is something around 25,000 tons/year. A nuclear power plant produces about 25 tons of waste per year. There are about 440 nuclear power plants in the world. If their waste consisted entirely of helium, that would be roughly 44% of total world helium production. More than I guessed! But, of course, only a tiny, tiny, tiny fraction of that waste ever turns into helium, so even if you somehow made it decay all at once, it would be be pretty insignificant on a world scale.

                                                                            • sixhobbits 4 hours ago

                                                                              It's also formed similarly to oil over millions of years underground if I understand correctly so can be a byproduct of natural gas mining.

                                                                              • daemonologist 4 hours ago

                                                                                It's often found alongside natural gas because the rock structures that can trap methane can also trap other gasses, but the original source is different - thermal decomposition of organic matter for natural gas and radioactive decay, mostly of uranium and thorium, for helium.

                                                                                I agree that the "accumulation over millions of years" is similar (and similarly a potential problem if we burn through all that accumulation).

                                                                                • Sharlin 4 hours ago

                                                                                  Which is exactly 100% of Earth's helium. Every single helium atom we use is a result of alpha decay, as a very good approximation there isn't any primordial or stellar helium on or in Earth.

                                                                                • jmyeet 4 hours ago

                                                                                  Terrestial helium isn't produced by nuclear fusion. It's produced by nuclear decay. As you may know, you get alpha, beta and gamma radiation from decay. Gamma rays are just energetic photos. You typically need thick lead and/or concrete to shield you from them. Beta radiation is high energy electrons. A thin sheet of steel will shield you from those.

                                                                                  And lastly we have alpha radiation, which is just a Helium nucleus. A sheet of paper will generally block alpha radiation.

                                                                                  Some materials are really strong alpha emitters. A good example is Polonium-210 where almost all of its energy from decay is in the form of alpha radiation. This is why Po-210 is so lethal when ingested, which has been used for that purpose [1].

                                                                                  But this means if you produce a lump of Polonium-210, it's basically radiating Helium. The source of almost all of the Earth's Helium is from uranium and thorium decay.

                                                                                  [1]: https://en.wikipedia.org/wiki/Poisoning_of_Alexander_Litvine...

                                                                                  • onraglanroad 3 hours ago

                                                                                    > Gamma rays are just energetic photos

                                                                                    They are indeed. The average planet busting Gamma Ray Burst is just a Vogon trying to "get the whole family in".

                                                                                    • I would think that lighting a Vogon family picture would be about as advisable as recording a Vogon speech. That is to say not at all.

                                                                                  • cubefox 4 hours ago

                                                                                    The reason helium can't be produced chemically (like hydrogen can be produced e.g. from water) is that there are no natural chemical compounds which contain helium. That's because it doesn't form those compounds in the first place, since it's a noble gas.

                                                                                  • CamperBob2 4 hours ago

                                                                                    If you have something that emits a lot of alpha particles as it decays, you could surround it with a source of electrons, I suppose. The details would have to be left as an exercise, and I doubt you'd get enough helium to be very useful unless you were dealing with large amounts of ridiculously-radioactive substances.

                                                                                    Same with fusion. Due to the implications of E=mc^2, fusion yields a lot of energy and a uselessly-small amount of matter. There don't seem to be many good ways to get a lot of helium besides either waiting millions of years for it to show up naturally, or carefully recycling what we already have.

                                                                                    • kergonath 3 hours ago

                                                                                      > you could surround it with a source of electrons, I suppose

                                                                                      Water would be the best for this. The cross-section is good and water can ionise easily. But yeah, you would not get a lot of it.

                                                                                    • nsxwolf 4 hours ago

                                                                                      Atmospheric extraction on Earth would require massive amounts of energy and infrastructure.

                                                                                      Gas giant atmosphere extraction sounds very far future

                                                                                    • Invictus0 4 hours ago

                                                                                      Fun fact, helium was discovered on the Sun nearly 30 years before it was found on earth.

                                                                                    • llm_nerd 4 hours ago

                                                                                      Recently had to deal with radon in a basement, leading me to a fun side trek of learning about uranium decay (it has been a lot of years since chemistry classes).

                                                                                      When you hear about alpha decay of radioactive materials, that is the matter spitting off a highly ionized helium nucleus, freshly birthed into this world. That He nucleus rapidly steals electrons from matter, which is how it can be dangerous to human cells if ingested.

                                                                                      All of that helium underground is the result of alpha decay, and a single uranium-238 element will birth 8 helium atoms as it transitions through a series of metals and one gas (radon), then finally finding stability as Pb206. U235 will birth 7, becoming Pb207.

                                                                                      Anyways, found that fascinating. It's just happenstance that helium often gets blocked exiting the crust by the same sort of structures that block natural gas from escaping, and they are an odd-couple sharing little in common.

                                                                                      One other fun fact -- radon only has a half life of 3.8 days. Uranium becomes thorium becomes radium, then radon where it has an average 3.8 days to seep out of the Earth and into our basements, where it then becomes radioactive metals that attach to dust, get breathed in (or eaten) and present dangers. In the scale of things, crazy. Chemistry is fascinating.

                                                                                      • 867-5309 4 hours ago

                                                                                        > That He atom rapidly steals electrons from matter

                                                                                        tfa:

                                                                                        > Thanks to its filled outer electron shell, it is inert, and won’t react with other materials

                                                                                        • llm_nerd 4 hours ago

                                                                                          The particle that is emitted from an alpha decay isn't actually called a He atom (I edited my root comment so this isn't misleading, apologies) -- I was being loose with terminology -- though it has the right number of protons and neutrons. It's called an alpha particle. Once it steals two electrons -- it carries a +2 charge and is extremely successfully at slicing electrons off of other molecules it comes across -- it is then considered the helium that we know and love, and is now stable with the properties we know.

                                                                                          And by stealing those electrons from other molecules it sets off other chemical reactions, which in things like DNA is highly suboptimal. This all generally happens at the birth of the He atom, presuming it isn't in deep space or something with no electrons to cleave from neighbours, and is only an instantaneous state.

                                                                                          • JumpCrisscross 4 hours ago

                                                                                            > *particle that is emitted from an alpha decay isn't actually called a He atom”

                                                                                            “Because they are identical to helium nuclei, they are also sometimes written as He2+…” [1].

                                                                                            [1] https://en.wikipedia.org/wiki/Alpha_particle

                                                                                            • onraglanroad 3 hours ago

                                                                                              You should really have posed that as a "I don't know anything about this so I'm confused" question.

                                                                                              • kergonath 3 hours ago

                                                                                                He2+ is not a helium ion, which is very reactive. It’s not a helium atom, which is inert.

                                                                                              • DonHopkins 2 hours ago

                                                                                                  He has risen,
                                                                                                  He has risen,
                                                                                                  He has risen,
                                                                                                  Helium is alive.
                                                                                              • wat10000 4 hours ago

                                                                                                Because it rapidly steals electrons, it becomes inert quickly. Helium you find lying around will be inert. Helium that has just shot out from the radioactive decay of an unstable atom will not be inert.

                                                                                                • chii 4 hours ago

                                                                                                  I would imagine that an alpha particle would still be inert in the sense that it won't cause chemical reactions with other molecules.

                                                                                                  • kergonath 3 hours ago

                                                                                                    Stealing electrons is a chemical reaction.

                                                                                            • scythe 1 hour ago

                                                                                              >The vast majority of MRI machines used today use superconducting magnets made from niobium-titanium (NbTi), which becomes superconducting at 9.2 degrees above absolute zero. This is well below the boiling point of any other coolant, making liquid helium the only practical option for cooling the magnets.

                                                                                              Well, this is part of it. The other issue is that the superconducting phase diagram has two limits: the transition temperature Tc and the upper critical magnetic field Hc. The magnetic field limit is generally highest at absolute zero and drops steeply with temperature. Even for the superconductors with Tc as high as 120 K the Hc at 20 K will be much less than the Hc at 4 K. So in order to make powerful superconducting magnets you need helium regardless of what superconductor you use, since nothing has broken this pattern.

                                                                                              • KalandaDev 4 hours ago

                                                                                                For a second I thought this was about Helium browser :(

                                                                                                • jmyeet 4 hours ago

                                                                                                  The US used to have a massive Strategic Helium Reserve [1]. Starting in the 1990s, Congress passed a law to sell down the reserve. This flooded the market with cheap Helium (yay, party balloons?) because the mandated pricing just didn't make any sense.

                                                                                                  10-20 years ago there was a lot of talk about how this was foolish because it was depleting and squandering an unrenewable resource. But the thinking has shifted on that because it's an inevitable byproduct of natural gas production.

                                                                                                  Now natural gas itself is limited but you can still get Helium from alpha decay of radioactive elements. Some elements are particularly strong alpha emitters (eg Polonium-210, Radium-223). They're basiclaly producing Helium constantly.

                                                                                                  Helium is a known issue in various industries. The article notes (correctly) that MRI Helium use is decreasing because of the rise of so-called "Helium free" or "Helium light" MRI technology.

                                                                                                  But there are short term supply issues. As noted, Qatar produces ~30% of the world's Helium currently. And that can (and has) been disrupted by recent events.

                                                                                                  Lithography is a particularly important consumer of Helium for superconducting magnets. That demand is rising with probably no end in sight. Lithography itself is on the cutting edge of technology and engineering so seems harder to replace. I mean, EUV lithography is basically magic.

                                                                                                  [1]: https://en.wikipedia.org/wiki/National_Helium_Reserve

                                                                                                  • nradov 4 hours ago

                                                                                                    Shutting down the National Helium Reserve seemed like a good idea at the time. It was originally established when airships were considered essential for national security, largely for maritime patrol. But blimps and dirigibles fell out of favor for most military missions and there wasn't much demand for other uses, so it was politically hard to justify wasting tax dollars to maintain a reserve.

                                                                                                    • cubefox 3 hours ago

                                                                                                      The article briefly touches on insufficient recycling. Though it's not clear for which applications helium recycling is technically/economically feasible and for which it isn't.

                                                                                                    • nisegami 4 hours ago

                                                                                                      I recently began wondering if a planet's helium supply could be the 'great filter'. As in, if a civilization could stall out due to not having access to enough helium to product the technology to access off-world helium.

                                                                                                      • jandrese 1 hour ago

                                                                                                        This presupposes that there are no alternatives to helium for off world exploration. Would be interesting if warp drives were real but required vast amounts of helium to operate with no substitutions possible.

                                                                                                        • actionfromafar 4 hours ago

                                                                                                          That sounds more like a tiny filter. :)

                                                                                                        • expedition32 1 hour ago

                                                                                                          The US has made itself reliant on a global market economy that they also constantly disrupt with idiotic mistakes.

                                                                                                          But for some reason for Americans peace is never the preferred option.

                                                                                                          • cineticdaffodil 3 hours ago

                                                                                                            So how hard would it be for elon to build a gas raffinery sattelite that captures helium while skimming the top layer of the atmosphere, dropping filled canisters by parachute?

                                                                                                            • ASalazarMX 51 minutes ago

                                                                                                              The biggest obstacle is that planetary extraction has to become too expensive, so space extraction becomes viable. If that were the case, it would probably be safer to mine the Moon, to avoid further messing of the atmosphere with refineries or even more frequent space flights.

                                                                                                              • bigyabai 3 hours ago

                                                                                                                You'd need investors willing to pay $50,000\kg of helium, for one.