skysight-inc/HackerNews huggingface dataset:
> That weight figure (7190 tonnes, not 4000) for ARC is just for the reactor.

https://arxiv.org/pdf/1409.3540.pdf (page 30)

Thanks. As I hadn't seen that paper, I used the Fletcher class destroyer, which was the most numerous class the US built, and it was slightly on the larger side at about 2000 tons; common destroyers were around 1500 tons IIRC. I also assumed, wrongly it seems, that 500 MW was the electrical power.

Anyways, if we're really interested in material requirements for various power plant types, one can check e.g. the DOE quadrennial energy review 2015, Table 10.4 on page 390. One can see that fission does pretty well, about an order of magnitude better than wind (and solar being somewhat worse than wind). I would guess fusion wouldn't do as well as fission, but it shouldn't be a huge difference either considering that except the reactor itself it should be pretty similar.
Isn't that the same in practice?

You get customers by being nice to them. Being nice to customers means competitive pricing, high quality support, good documentation, easy integration, etc. It's all driving towards the same goal.
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It's possible, but you're not supposed to notice.
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Second monolith spotted in Romania after Utah desert mystery
be sure that it's a data science and not startups that you're burnt out on
The original platform didn't include the Gregorian dome. The auxiliary cables were added in the mid 90s during a major upgrade that included the dome, adding a considerable amount of weight.

The choices were made based on funding and ability. The main platform, towers, and reflector was designed and constructed in 1960, long before our computing capabilities could have even conceived of being able to accurately deform the surface. Heck, the reason the dome is so massive is that it holds a secondary and tertiary reflector to convert the focal line (an artifact of the primary reflector being a spheroid instead of a parabola) into a focal point.

Also, the 30-ton platform in FAST is the main limitation preventing FAST from being able to perform planetary radar science. It is too small and cannot support the weight necessary for a radar system of sufficient capacity.
Not necessarily. For low frequency workloads with reasonably long step times, Lambda can still make sense. (E.g. When videos appear in this S3 bucket, process them.)

You might only drop videos in once a week, but when you do you want to run some code against them. There are plenty of distributed workflow reasons to run long running Lambdas infrequently rather than spinning up and down an EC2 instance.
Separate processes means no TLB shoot-downs.

If you put ring buffers in hugepages, the number of TLB entries involved is small, typically 1. And, pinning the processes to cores, each gets its own set.
If you know of such a utility I'd like to see it, because I've looked and never found it. The closest I've seen are things like AppImage.
You can have recursion right from Beginning Student Language (which lets you define top-level functions and call them recursively). Structural is taught early, together with lists. Structural recursion is explained together with recursive data: To unpack the data (any data, not just recursive), unpack the inner members, and therefore the structure of the program follows the structure of the data.

As someone who is taking the accelerated version of this course right now, but had prior functional programming experience, I did feel limited at first. Some other people responded negatively to the student languages because they weren't "mainstream."

As for the expressive power of languages, as a matter of fact, Felleisen wrote a paper that rigorously defines this idea. Here is a talk by Shriram Krishnamurthi that discusses it: https://pwlconf.org/2019/shriram-krishnamurthi/ It turns out that local transformations (macros) do not add expressive power. A language feature adds expressive power if you can find two programs that are observationally equivalent in the base language, but not the extended language.
Bake a certain amount of seeding into the contract to access the content, then enforce that with a browser plugin I suppose. Doesn't seem like it'd be too hard, aside from convincing users to install a browser plugin to access content. If it were just integrated in to the browser, OTOH...
> I have to wonder if they’ve found it not worth the time to make it fully production ready.

It sounds like it's not compatible with all T-SQL commands and data types. It would be tough to get full feature completeness: Microsoft is constantly adding new stuff in each version, like the ability to run Java stored procedures, R & Python in the database, etc. Open sourcing it would let companies expand it to get specific features coded that they need - that otherwise might not get attention from the general public.
>I agree but simple things it's really nice ¯\_(ツ)_/¯

Not to pick on this person is particular, but this is why I am so against surfacing untrustworthy information as trustworthy.

Google's AI "knows" that Austin is the capital of Texas with the same system that thinks the Wright Brothers flew through the core of the earth. So why the fuck would anyone trust google that the capital of Texas is Austin? Because you think you can intuit the boundaries of what their AI will and won't fuck up? [0] And that's a reasonable burden to put on dummies who already think search engine results are somehow more authoritative than the simple text matching they're based on at their core?

How is anyone at google with a brain comfortable with this feature being live?

But these low hanging, blatantly obvious, wrong things are actually a good thing. Because once the obvious things are fixed the un-obvious ones will linger as even more unwarranted trust is be placed in the feature. And it will become even harder to get it though people's thick skulls how goddamn stupid it is to outsource reasoning to machines that can't fucking reason.

[0] Sure, xkcd asked fundamentally unanswerable questions, but google notoriously spent years getting "how long does it take to caramelize onions" wrong.
It’s no one’s fault really. As long as people pirate software, it is economically Darwinian / inevitable that all commercial software will migrate to centrally controlled subscription gated servers. This includes open source software, if you correctly count how much of it is repackaged and sold to people this way.
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I disagree. If you install Windows as a system builder or on a system from a manufacturer without their specific build, it definitely doesn't work out of the box. There is a lot of driver discovery and installation that needs to be done. That's not say that this hasn't improved over the years. If you ever built NT/2000, you'd know what an utter nightmare it could be. It also is highly dependant on you own definition of "working out of the box" is...
Lessons from the AWS Kinesis Outage
It sounds like their goals are pretty lofty -

>Those are the mechanics, but developers need to be certain that Babelfish truly speaks SQL Server’s language in a dependable, predictable way. As such, the guiding principle for Babelfish is correctness, with no compromises. What do I mean by correctness? Namely, that applications designed to use SQL Server semantics will behave the same on PostgreSQL as they would on SQL Server.

I am assuming they just mean in regards to types and the like - to get the same performance characteristics out of the code would be bonkers.
You did use the word serious enough to make it compelling. But the author’s biography doesn’t mean that his comment wasn’t flippant.

He’s proved that an well-behaved, codesigned app can list file metadata about files in restricted directories. He hasn’t proven the sandbox compromised.

You claim he has so much serious evidence, link us there. Don’t just string adjectives together.

I have great respect for Jeff, but he is one of the more outspoken complainant Apple devs. At least he has a better basis for his commentary than DHH.
I for one welcome all the terribly sourced and miss-informed term papers this will bring.

This should make plagarism detection easier.
Newspapers Won’t Last Long
To be honest, Caprover does this easier than Dokku.
Ticketmaster makes about 2 billion per year. So this was a 4 hour loss of revenue? Did anyone at Ticketmaster even bat an eye?
That's a missed opportunity. I loved the jog dial input on my old Sony Clie SJ33, for example.
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See ACSM [0] article and the cited papers for more information.

[0]https://journals.lww.com/acsm-healthfitness/Fulltext/2013/05...
AWS Lambda now supports container images
Doh, I can't believe I read that wrong. Mea cupla, and thank you for the correction.
Does this acquisition include https://rancherfederal.com/ or is that still a completely separate entity?
Just the fee of your time sorting through which services you need and then the docs for those services - assuming of course you chose the correct service(s)
What is your experience? Go is an AOT compiled language so the only thing I could imagine you running into on startup is loading the binary into memory? Theres not a cold-start issue with Go, as its not an optimizing JIT.

Edit: Bizarre. Seems like Go on lambda does actually have slower cold start than JS or Python. I wonder if its just that the binary is likely larger than the equivalent JS source code? https://levelup.gitconnected.com/aws-lambda-cold-start-langu...
Based on the comments on this thread:

Amazon has a real problem if even the HN audience can't easily figure out what a new service is.

I actually didn't get it either, and came to the comments for help.
Olympia is actually the largest brand of ice resurfaces, not Zamboni. Or so they claim, I can't find real numbers.
Aaand there goes dockerhub
Just to add some more of my experience. Wacom tablet is awesome and really close to what it feels like drawing on a paper. And yes when drawing, you are looking at the monitor and don't really feel the need to look down. On my 13" 2016 MBP, there was no noticeable delay. The biggest drawback for me was that it is not as portable setup. You need a computer for it to work.

I switched to iPad and Procreate app because it was just easier to do random drawings while watching TV or in a coffee shop etc. But drawing on iPad doesn't feel like drawing on paper. I even got a screen protector that is supposed to add paper like feel but it is still not as good as Wacom tablet.
same. I went through the trouble of implementing my function in Rust (Rocket), and it's actually quite slow because (a) startup is slow and (b) async/await is still pretty painful to use so I'm blocking on IO
In a sense it already has. I suspect the reason that Linux ARM support is as good as it is currently has a lot to do with devices like the Raspberry Pi. In 2010 (i.e. before the Pi) I was using a BeagleBoard-xM and things were both rough and spartan. Today the ARM packages in the repos are nearly at parity and things work much better.

However, the Pi has never gotten much beyond being a forky port of Linux software (back then they had to: they were an arm6hf device in an arm7hf world) and since they seem determined to stay forked (i.e. they no longer need to be a fork, but rather seem to want to be), I don't expect much more from the project in terms of broader Linux enhancements. I'd love to be proven wrong on this.
> No package manager.

> Instead, you configure a set of specifications of what files from which packages to include on your system

Isn't that a just a declarative package manager?
I think so, looks like a kernel issue more than an ls issue. The kernel should be preventing ls from accessing that metadata
This is the 5th amazon.com link trending on HN. Seems like AWS is releasing bunch of new features today.
Ah, ok. My thought is to distinguish between “logically prior” or “causally prior” or something like that, and “prior in time”,
But, I suppose one might consider those things to be a kind of “time” in some sense.
Is Heroku that expensive? Uffizzi looks to be $20/m for the smallest tier. Which is significant for small apps imo - am i misunderstanding something? I thought Heroku and DigitalOcean Apps had ~$5/m options with no DB, and something like $10/m for App+DB.
What happens when there are a lot of unique submissions? Will people get fatigued of reading all the options?
Other coverage (from HN submissions):

https://arstechnica.com/science/2020/12/arecibo-radio-telesc...

https://www.cbsnews.com/news/arecibo-observatory-radio-teles...

https://www.theverge.com/2020/12/1/21754959/arecibo-observat...

https://www.nbcnews.com/news/latino/huge-loss-huge-puerto-ri...

https://twitter.com/jivevlbi/status/1333764894454374400
All retail outside of large supermarkets is disappearing. It's impossible to compete against online services that are cheaper to run, more scalable, and overall mode comfortable.

The bookstores that will survives are the ones with comfortable couches and a cozy athmosphere where you can sit down and read or study for a couple of hours instead of going to a café or a pub. Entertainment has not been fully digitalised yet.
Ubuntu released an upgrade for containerd that stopped the Docker daemon
It is unnecessarily annoying to get the LTSC or other Enterprise versions of Windows but it's not out of reach for an individual.

Use https://www.microsoft.com/en-us/solution-providers/ and pick one of the companies in your area. It largely doesn't matter.

Shoot them an email explaining what you want and they'll have you meet the 5 license minimum for volume licensing by buying a Windows Pro License a Windows Enterprise Upgrade license, and 3 user cals which are cheap. They'll put your name down as the business and then you're done.
Not if it were a repository a la Linux, distributions, where:

- You can still install applications manually, and there are no special permissions lost for doing so.

- You can access it using your choice of application, instead of only the MS-approved tool

- You can add 3rd party repositories

If that's what the "Windows store" was, I'd absolutely use it (if I still used Windows). If it comes along with a bunch of other crap, then yeah, there will be pitchforks.
It’s the annual conference, called reinvent.
They are from the platforms I was coming from. It was a shit show. All my VMs are in AWS. I don't do any dev directly on this computer. I really hate doing that. All it takes is one slip up with some tooling and your entire control surface is covered with body parts and shit. It's like operating a lathe with dreadlocks and floaty sleeves on. I'm not living that life any longer. Nor am I lugging around 500gb of VMs everywhere. This is a very nice terminal node and I like that.

Which constant Apple news? You'll find if you look back through my post history I was very critical of Big Sur and the M1 but after taking time to understand it, measure it and use it I'm less concerned. When I put all the vendors on the table, including Linux, the tradeoffs were still in my favour with Apple.
I agree, this was sort of a annoying. Though when you reason about it in a systems way, not having a default of "reboot" would be problematic from a security PoV.

Of course, you're not the only one with this issue. There used to be an option in "gpedit" to disable this, but I can't find it anymore. I suspect that this is because there is now an option in the "advanced options" of the "Windows update" menu, called "restart this device as soon as possible".
Was already working through porting my startup’s web app from docker to lambda via layers and such, but it was a hassle. Then I read today about the 1ms billing and got motivated. THEN I see this about running containers, my life just got much easier. What a time to be alive!
On the one hand I read that JS Lambdas were often already under 100ms (30-50ms)

On the other hand I heard legends about under 10ms Rust Lambdas.
On demand printing is pretty cool and wasn't really available in the past. The Internet also revitalized the used book market. I buy almost all of my books used.
Ever see the BBC series "The IT Crowd"? There is a great scene that illustrates the class differences when it comes to work and fitness. The boss is giving a speech about stress. He is head-to-toe in spandex having just commuted in on a bike. Everyone else is in office attire. Only certain people in certain jobs enjoy the luxury of mixing work and fitness. Even something as simple as having some free weights at work draws class lines. It means you have an office or a desk. A driver, or care worker, or food service worker doesn't enjoy the stability of having their own workspace.
If the hash rate goes down as you predict, then the network will become insecure. Double-spending attacks will destroy the trust in the network and people will stop relying on it.
If you're running it continuously for a year, then you should probably be using a reserved instance and not lambda. Lambda is for short bursts, not 1 year of continuous use.
Wikimedia’s CDN: The Road to Apache Traffic Server
It's an AWS tool for writing infrastructure as code in a few different languages that compiles to a CloudFormation template.

https://docs.aws.amazon.com/cdk/latest/guide/home.html
Sure, if by miraculous chance you happen to have printf'd exactly the state you required to figure out the assert/crash, "you don't need gdb". You could also find -- by divine inspiration -- what went wrong just by looking at the line number where the assert failed. But it's still WTF-y to argue that therefore, an actual {,post-mortem} debugger is "a last resort tool".
AWS Cloud Development Kit

https://aws.amazon.com/cdk
They would be willing to do this probably if you let them evict your entire workload from memory during the period you were not paying for it, and then were able to charge you for CPU time and some additional charge to reload workload into memory from hibernation.

Most workloads ALSO hold memory (which is a key constraint) over the entire wall clock time, and the delays and impacts/costs of hibernating out the memory and then bringing it back so you can just be charged for CPU time may not make sense.
I'd like to be optimistic wrt future software performance on this model as well. Linux isn't Android where user apps are written to run under a virtual machine and development has to deal with the Java monoculture (Android still doesn't have low latency audio for this exact reason). However, some Python apps that on a powerful desktop run at high speed might be taxed by the Pinephone comparatively slow hardware, so native compiled code would be the solution to give a significant speed bump to most Pinephone userland applications.
I hope this means I can finally connect postgres to excel with the same ease I can connect SQL server.
Mass market paperbacks (and maybe trade paperbacks) could go away soon, and I don't really see anything wrong with that. It's super wasteful to print and ship these effectively disposable copies. I think hardbacks have a better case for hanging on longer.
Show HN: Cloudquery – Ask questions about your cloud and SaaS apps with SQL
I think that that is because Microsoft would probably only create a Walled Garden. What's the chance they will allow a system where anyone can host their own repository, and add/remove them as a user? EEE doesn't seem applicable here, because there's nothing to embrace and extend. It's problem that has to be solved for scratch.
Was it : https://gather.town/
Bin packing. It's a lot easier to distribute workloads around a cluster of compute if you can guarantee the maximum runtime.
I think this difference stems from how easy it is to apply and display your skills to projects outside of competitions. I mean, how are you going to demonstrate your mathematical problem solving skills to an employer in a side project? "I research the Collatz conjecture in my free time?"

Contrast that with programming, where there are practical challenges abound whichever way you look. So those choosing to participate in competitions instead presumably have a much more narrow range of motivations. I can't tell you why this should translate into dismissing these people, but there is certainly a difference.
Amazon open-source their EKS Kubernetes distro