Marine transport is stupidly efficient and probably won’t influence those numbers much. For the same reasons it’s absolutely okay to eat avocados from overseas. I believe the processing of oil to gas is quite energy intense tho.
No, not at all. Coke or hydrogen always only provide additional heat, they are never the main source of heat. The main heat source can either be coal or an electric arc furnace. The coke or hydrogen are just necessary for the chemical reaction, and providing some heat is a side-effect.
Sorry, in face of OP’s tone I allowed myself some sarcasm. Obviously there needs to be additional energy. You’d have some equilibrium with those reactions and OP didn’t make any argument why that can’t be controlled in favor of reducing Fe2O3.
It’s also borderline unbelievable OP never heard of hydrogen in future steelmaking, if they are at all invested in the topic. You’d need a special kind of ignorance to think people are hugely throwing money at this, when the basic chemistry is infeasible.
Well, actually, thermolysis for water occurs at 2200°C. Thermolysis of CO₂ starts at 1400°C, of CO at 3700°C. The melting point of iron is around 1500°C, similarly its oxides.
So water as a product is actually more stable than CO₂, and doesn't undergo thermolysis at the relevant temperatures for smelting iron. Whereas when going the CO₂ route, there is the risk of producing relevant amounts of CO, which is not as desirable and less efficient because it only absorbs half the oxygen.
Cost is a big question, but it will for sure be more expensive to use hydrogen. Back of the envelop calculation (250$/t coal price, need 1/3t of H_2 for the same effect, so H₂ may cost up to 750$/t, need 40kWh/kg for H₂ electrolysis at 100% efficiency) gives a breakeven electricity price of 1.875ct/kWh. While this happens from time to time due to overproduction, those prices will even out as soon as there is a market for that excess electricity through batteries, storage and electrolysis. Which means that cost-wise, the H₂ route will never be more effective than coal. To make it viable, coal use needs to be made more expensive through taxes and tariffs.
You can get pretty quickly at it with Blender instead of proper CAD. Just do the "donut tutorial", set the correct workspace dimensions and go for it. You can learn basic modelling in a day.
Blender is overwhelming at first glance, but it becomes incredibly intuitive once the UI clicks. Of course modelling for printing in Blender has drawbacks and limitations. It's more fiddly, but unless you are super stupid, you can get pretty far, pretty quickly. And you can do sculpting and organic shapes, which are hard/impossible in CAD. Learning Blender basics is worth it anyway, incredibly useful for thinking and sketching in 3D. Oh, and it's FOSS, runs entirely locally, doesn't spy on you, or appropriates your creations like the "free" Fusion360 and their forced cloud crap.
Once you got annoyed by Blender's limitations for 3D printing, you can learn CAD. But Blender is the best way to get into it IMO. Trust me, you won't regret learning Blender basics, in any case. It's expanding your creative horizon and is fantastic, very pleasant software.
I second Blender. I don't use anything else and don't see why I would want to. I hope to get into geometry nodes in future.
The donut tutorial is .. handwavy relevant to 3D printing.
3D modelling for 3D printing doesn't require materials, colours, lighting, camera placement etc etc. But doing the donut tutorial will get you used to many aspects of blender and realise just how powerful this software is. It's also kind of a Blender right-of-passage.
The Blender documentation is fantastic if you prefer to learn via pages than random video-build-a-thing tutorials.
Blender tends towards using keyboard shortcuts. Learning them can greatly speed things up.
And Blender has a large body of community forums for questions and answers if you want to search(first), post a question, or likely ask your friendly AI what the answer is.
[edit] the bite sized blender basics videos on the blender.org site no longer easy to find. :-(
Ha! I believe every RNode can be used to bootstrap a Reticulum network, as that tiny ESP32 hosts the RNode firmware, the full network software stack and documentation! The RNode has the capability to become a Wifi access point, if you connect you get this at 10.0.0.1.:
This post seems to be weirdly censored by HN. It got immediate traction, when it briefly hit the frontpage, yesterday.
Since then, I reliably cannot find it coming from the frontpage (or 15 pages in). It's not flagged/dead, got quite a lot of upvotes, obviously, the topic is popular and highly relevant across industries as major inflection point for US-EU relations. Never noticed anything like that on HN.
However, the weird thing is, I somehow still observe new human participants finding their way in (through votes and comments).
So, HN is presumably heavily interfering with traffic and visibility on this one.
This post is ranked 7th in /active, now. Quickly cross-checking /active and /news, I've found no other post in /active not visible in /news. It went from 100 to 200 points, since I noticed the delisting. /active is an obscure list, I doubt, that's how many people find this post.
Whatever HN is doing, it seems to be completely intransparent and selective. Some A/B-ing, or geofencing. In any case, questionable and manipulative. Like they are trying to hide interference and engineer popularity/engagement to whatever end.
And you have to wonder, if this has anything to do with the fact this particular political move seems to have greatly backfired on every possible axis, apparently even within the conservative and MAGA base. May turn out as exceptionally stupid, especially before midterms. I've seen impeachment calls in /r/conservative (lol), and they are usually an extension of Trumps digestive system. Diplomacy with Europe is basically dead, France wants to trigger the EU's extortion clause and it's a sunday.
If it’s “gone” then it’s because too many users flagged it. You can turn on “showdead” in your profile to see them again. It isn’t done covertly. You can email hn@ycombinator.com about specific posts to get an explanation.
So it’s not actually gone? Again, instead of speculating, send an email if something is unclear. Yes, moderation is purposefully selective, but not based on political agenda. Dang has repeatedly explained moderation policy in the past.
It is? Dude, just check yourself, instead of sealioning?!
It's in /active, not frontpage or 15 pages in as stated above. It's not marked anything, which would also show next to the title of the post itself. So what's your fucking offense? If all of this is of no concern to you, why bother commenting? Yeah, thanks for pointing out I can write mails somewhere. I should also write my representative and call the embassy. And sorry, I haven't read every thread ever to know what Dang said at some point in the past. Well, what did he say about opaque visibility manipulation? How about leaving a message in respective threads?
I was just pointing out there is intransparent, weird censorship for this post. I don't care as much about the alleged reasons. People should be aware this is a covertly distorted discussion.
For me fish got three things I can't live without anymore:
1. Sane defaults. I just 'dnf/apt install fish' and be done with it. It's not a configuration mess, I don't need to manage dot files. You actually never have to touch config files. Things like aliases and functions can be saved from CLI. For the most part it works like bash.
2. Alt+H to open the manpage for command under the cursor, without messing with the command line. Best. Thing. Ever!!!
3. Extensive tab completions, which provide descriptions. Most of the time I don't have to open manpages and just do 'cmd -[TAB]'.
History access is also much better. Alt+Up/Down lets you inject tokenized history, like last command's arguments.
The only thing I frequently miss from bash is '<<<' and 'sudo !!'. The latter is a matter of habit, since fish provides Alt+S to toggle sudo prefixing.
I do most scripting in bash, but only because it's idiotic fun to mess with the arcane like that every once in a while. Did you know you can manage TCP I/O in pure bash, via /dev/tcp/$host/$port? Bash is soo stupid and dangerous, impossible to remember or understand the next day, but great fun.
I think this is the biggest indicator of permanent damage. The EU politicians aren't as impulsive and loud as the US, they won't do anything drastic when necessary changes take time to implement. They will buffer this hurt as much as they can, to cut their losses. However, the fact the trade deal now suddenly passed, after 20 years(?) of talk, points to a fundamental shift behind the scenes. Things are clearly in progress.
I presume, it's the lack of opposition and outrage. Americans letting it happen. It's evident, there is no waiting this out. Today it's Trump, tomorrow it's Vance or whatever lunatic. 38 trillion debt, but nothing to show for it, foreign assets abandoned, power projection crumbling and spread thin. Things are expected to get unstable. The US will never be trusted or even respected again, not any time soon.
The president who is willing to fix this will have to bend the knee. The US behavior is straight insulting and caused major economic damage. If your drunk uncle pointed a gun to your head, a simple "Sorry!" won't do.
Quite frankly, considering the wide diplomatic damage and collapsing influence, paired with its deep social, cultural and economic internal issues... I can totally see the US failing. They depend so much on power projection and economic influence, I don't see how they could possibly manage on their own. What will happen to the dollar if the US isn't guaranteeing stability anymore? The debt will explode and former allies may call on their stake. Due to the AI bubble, the American economy is worse than it looks. It may all come down together.
Is California going to hold the bag for Florida? What's being American other than an international embarrassment and a bully, at this point? How strong is the shared identity when it comes to it? With ICE and all, can they get over the differences in "opinion" about who's deserving human rights and who doesn't?
> The president who is willing to fix this will have to bend the knee.
A similar instance of this is happening currently in the talks between EU/UK — The EU is demanding a „Farage“ clause. They want a guarantee that the damages are paid for in case Farage becomes prime minister and will roll back all treaties and trade deals and what not.
I have a similar take and I have written in one of the comments here about it but America's biggest export has been finance and this just seals the deal.
"Quite frankly, considering the wide diplomatic damage and collapsing influence, paired with its deep social, cultural and economic internal issues... I can totally see the US failing"
The only thing that a new democrat president or any new president even the most extremely fixable can do is risk mitigation. Its like the breaking point of a rubber band, they have streched it far enough and now it wont go back no matter how much amounts of sorry
I don't know, I was highly pessimistic about Trump from the start but even I didn't expect this much, at this point, its game over. I used to chalk up some things to stupidity due to Occam's razor but when you combine all of these things together (especially with Epstein files), to me it doesn't feel like stupidity but malicious behaviour.
I was feeling when trump flipped off an american citizen to be weird and now this.
At this point, just give me a break from world politics as a non American, the news cycle is so fast and depressing, like moving the world a century back depressing
> What's being American other than an international embarrassment and a bully, at this point?
This is a good point and I don't know what the answer is. To be American is to be a citizen of Eternal Trumpistan. Trump is America and America is Trump at this point. They have no soft power on the world stage at all any more, they're largely detested, even by their own friends.
The USA had an important role to play in the rest of the 21st century and China could have been contained. But it's over now. Good job Americans. Good job you fucking morons.
EU is also this close to making a deal with India and both India and EU are enthusiastic about this deal or EU is very optimistic to create a deal with India
A deal which was being on hold for atleast a decade.
It's just not the EU which is more willing to make deals but the rest of world (India got hit with 50% tarrifs) as well.
Takes century to bake biggest cake ever. Clown enters stage, applause. Clown throws cake to the ground. Audience waits for joke. Curtain falls. 38 trillion dollar bill for cake. Audience is the joke.
The bill was almost the same before the vote. A single vote or a single person decide nothing. The candidates were selected and the vote was driven where it had to be by those with real power over the the two parties, there was no real choice. What you see now would happen regardless of who the public voted for.
> What you see now would happen regardless of who the public voted for.
No. If Biden had attempted even a tenth (or Obama a hundredth) of what Trump has done, he’d be facing Nixon-level approbation and possibly real jail time.
Biden caused much harm as well, but he was not as overt as Trump. Trump reveals it out loud while Biden (and most politicians) said it in secret chambers.
I don’t know what could possess someone to say Biden was just as bad as trump. It’s self evidently false
They mention that its self evidence but there is genuine evidence for this as well (which report do you want?) and its a fact and not deeply personal swipes.
Your comment on the other hand feels like not addressing the main points of what the GP said and much more like a smokescreen to this.
Have you read the guidelines for this site (see link).
If users, particularly green accounts, have opinions then they are encouraged to express them without snark directed toward the person they are replying to.
Well I guess its understable that you might think its snark partially perhaps because of the fact that they said self evidence.
I do understand what you are trying to say but their point still stands in my opinion and if you want me to provide facts from real studies indicating what they mention as self evidence. I am more than happy to do so to have a more nuanced but still civil discussion.
but also the fact is that most of such rules kind of (soft break) during times of chaos as such and I do know that you understand it as well.
You could've also done a better job trying to explain why you feel its snarky as I had assumed that you are trying to show the rules in case any uncomfortable facts comes up (which I hope you aren't doing as my civil response might go to waste in that case)
I am not saying that they are aligned with HN guidelines but I am saying that their core message was still valid (although I agree that perhaps it was written in bad way) & they don't really fit the ideal HN guidelines
I agree with you and want to say that we shouldn't call people morons for voting for trump (unless they are voting because of their biases towards a particular race in which we can agree that that's bad) but rather the fact to align them towards and pointing them to real facts and showing the facts that politics can change and its not as core identity and they should look at the facts (as evidenced by many surveys one of which you showed in another tangential post as a comment and I agree with that) and try to do something about it (this is the core part I believe so where the people should try to do something when they are impacted against)
I agree we shouldn't use uncivil comments to people we don't align with partially because that still raises the us vs them dynamic which should be stopped in the first place and comments blanket calling morons does feel like increasing that tension
They should've done a better job giving more facts and being more civil so yeah I can agree with that but that being said, I still believe that what they are saying has true merit and can and should be rephrased in better words for the masses to capture to liberate themselves from echo-chamber related noises
Trump’s unique awfulness in American and world history is indeed self evident and in forty year’s time nobody will ever admit to having voted for him, including you.
Trump is an awful character, but equating him to the worst villains of history (at this point in time) is dishonest and hyperbolistic. Also, assuming you know who I voted for is equally silly.
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