MurphyA/hacker-news huggingface dataset:
by UberFly | 2025-05-27 06:25:17+00:00
Context: "Sir Frank Whittle, an English engineer, is credited with inventing the jet engine. He patented the design for the turbojet engine in 1930, and his work led to the first operational jet engine in 1937. Independently, Hans von Ohain in Germany developed a similar jet engine, with the first flight powered by his design occurring in 1939. Both are recognized for their pioneering contributions, but Whittle's work laid the foundational concepts."
by hunglee2 | 2025-05-27 06:25:20+00:00
We don't really have a solution here because incentives are misaligned at the level of company vs society.

Companies have no inherent incentive to hire human beings - we are a means to the only end of maximising profit. Should a better option exist, the company will go for this - indeed, many a CEO has a fiduciary duty to do this!

Societies have this incentive, as we need social stability and have an economic system which relies on taxation. I suspect we will see legislation from governments forcing companies to hire apprentices for every robot they install or every percentage point of efficiency they gain through AI.
by tsimionescu | 2025-05-27 06:25:37+00:00
Yes, water vapor condensing to liquid water at humidity below 100% is an exothermic reaction, and the amount of energy released is (per Google) 2259kJ/kg. So any device that wants to condense 1kg of water has to dissipate at least 2259kJ of energy somewhere, assuming it is in any way temperature-dependent (if it can keep condensing water even if it becomes hotter, then this is somewhat evaded).

For context, that amount of heat is five times the amount needed to heat 1kg of liquid water from 0° to 100°C (without thawing or boiling it). So it's not in any way a trivial amount.
by noizethievery | 2025-05-27 06:26:37+00:00
Hi, I can solve this - I've built similar solutions for YC startups. *What I'll deliver:* 5-email welcome sequence Automated follow-up campaigns Segmentation strategy *Timeline:* 24 hours *Investment:* £187 Happy to share working code examples if helpful. Quick question: What's your target timeline for this?

Best, Alex Thomson Senior Technical Consultant
by chrismorgan | 2025-05-27 06:28:08+00:00
That’s badly broken in a variety of ways at a variety of window sizes in both Firefox and Chromium, though worse in Firefox where it goes from being unpleasant to downright unusable at some sizes; and at larger resolutions in Firefox it’s not even managing 3fps. What are you doing? You’re meddling with scrolling, too. :-(
by epiecs | 2025-05-27 06:28:49+00:00
Indeed. I never really used AI until recently but now I use it sometimes as a smarter search engine that can give me abstracts.

Eg. it's easy to ask copilot: can you give me a list of free, open source mqtt brokers and give me some statistics in the form of a table

And copilot (or any other ai) does this quite nicely. This is not something that you can ask a traditional search engine.

Offcourse you do need to know enough of the underlying material and double check what output you get for when the AI is hallucinating.
by azalemeth | 2025-05-27 06:30:02+00:00
Something nobody is saying is that there genuinely are synergies in GE's businesses. Take MRI for an example (albeit one I know a lot about...):

-- the superconducting magnet shell requires the accurate creation of 'nested doll' cryogenic containers, built to withstand magnetostatic forces in a highly regulated environment with defined safety requirements under catastrophic failure modes. Solving the design problem is equivalent to solving a huge set of nasty, coupled PDEs subject to loads of material constraints. This is directly analogous to aspects of jet engine design.

-- inside the bore of the magnet (but not in the cryostat) goes a device called the gradient set, whose job is to generate \partial B_z/ \partial_{xyz} as a function of time (that, very much indirectly, the radiographer specifies). This is a water cooled, resistive set of magnet coils with a defined frequency response curve, linearity requirements, etc. The current into them is generated by a set of three huge amplifiers, which have to actually take a signal delivered on a timebase of microseconds and volts and amplify it with negligible delay and deliver kA into a large inductor centimetres away from a patient. This is a formidable (power) electronic engineering challenge with huge parallels to various aspects of electrical engineering – e.g. managing (preventing) dielectric breakdown, thermal management, inverse solutions to Maxwell's equations in a quasistatic region (people use streamfunctions to do this well), etc.

-- the RF side of the system has to transmit kV and receive microvolts within microseconds into a definitively challenging electrodynamic environment with constraints on harmonics. Everything has to keep to a hard realtime constraint. The ADC must have a huge dynamic range and the problem is conducted massively in parallel. This is directly analogous to problems in telecommunications or RF design, but harder -- intermittent pulsed not continuous wave, and a hard requirement to accurately measure analogue voltages. Designing the RF coil ("probe" in NMR speak or ≈"antenna") is a further horrible (full-wave) EM design problem that even GE often subcontract out to one of about five specialist firms worldwide.

It's not a priori obvious to me that lots of competing companies would be better at creating stuff that requires the interaction of disciplines like this. Rather, I view the split up of GE and all of the woes of the article as evidence of a business mismanaged by MBAs. The defined benefit pensions should have been protected by law and overseen by an independent regulator - like my defined benefit pension that sits above my employer and shares risk among many different universities.
by atlasunshrugged | 2025-05-27 06:30:22+00:00
Do you have any general advice for countries considering pursuing nuclear energy programs? Ex. Estonia is actively working on legislation to enable nuclear energy production (likely through a small modular reactor) and it'd be great to hear an experts advice on how to best pursue developing a domestic nuclear energy industry.

Also curious if there are any parts of the industry you think are particularly exciting and/or neglected (ex. there was just a startup that raised gobs of money to enrich HALEU since most of it used to come from Russia)
by Scoundreller | 2025-05-27 06:32:08+00:00
> To be fair, I switched from the (acidic!) soft drinks to tap water. Almost always boiled water. Despite being comparatively confident in the quality of our tap water, the pipes mustn't be great.

if you’re making hot drinks, sure, but by boiling, you’re going to concentrate the minerals (and anything else in there that doesn’t like to evaporate, like PFAS)
by hoseyor | 2025-05-27 06:32:34+00:00
It was always a fraud of future promises, an actual and literal con job. It is the inherent risk of trusting others, strangers nonetheless, with your own future, let alone “retirement”.

It is another one of those core metrics, even if a lagging one, that should be used to evaluate whether government has failed; the delta between how secure someone would currently be if they had just invested all the pension/social security money that was stolen/defrauded from them.

Most of our governments would be exposed as the failed governments they are.
by BonoboIO | 2025-05-27 06:33:36+00:00
Well … it’s even true in Germany, not libel but you can be convicted of „Volksverhetzung“ even if you state something that is true, like that a certain person of a religion would be today be called a pedophile. It’s literally stated in the religions holy book, but if the statement is ment to push racism it can be still a crime.
by mirzap | 2025-05-27 06:35:32+00:00
I read it, and "attack" does not make sense. If you grant access to MCP to access some data (data you want anybody has access to like public repos, and data that only you want to access to like private repos), you will always be able to craft the prompt that will "leak" the data you are only supposed to access. That's not surprising at all. The only way to prevent these kind of "leaks" is not to provide the data feed with private data to the agent.
by ndsipa_pomu | 2025-05-27 06:35:34+00:00
> Your first statement is terrible logic when it comes to trying to create more globally correct system dynamics.

However, I don't think it would be correct to turn illegal behaviour (by the corporation) into a monetary punishment for non-illegal investing. That provides an incentive for execs to choose illegality as in the worst case that they are found out, the stock price would take a hit, but the decision makers would likely be unaffected in any meaningful sense.

Taken to the extreme, you could have a situation where a corporation's execs decide to start a new hit-person service (obviously somewhat hidden and only available to their biggest customers) and then if it gets discovered, no-one gets to spend time in prison for it.

Alternatively, in the instances where the corporation defrauds investors, the investors then get to be punished twice (c.f. Bernie Madoff).

I generally agree with the recent Germany decision to imprison the VW execs for the Dieselgate scandal (I haven't followed the details of that case however): https://news.ycombinator.com/item?id=44098091
by rlkf | 2025-05-27 06:36:53+00:00
In Norway, the companies are required by law to pay the pensions into a special type of investment account where withdrawal are not allowed until you are retired, but you can choose your own investment profile: A mandatory 401k.

The arrangement where the _company_ controls the account seems to me to be more of a allowed delay in salary payout, to the benefit of the company, than a retirement account for the employee.
by seanhunter | 2025-05-27 06:37:22+00:00
Exactly this. For a genuinely web-scale implementation, these days in an enterprise context you really need to be thinking about a “yes” microservice that can be run in an autoscaling kubernetes framework. Doesn’t need to be fancy just a couple of helm charts and a security sidecar with ingress and egress filtering, a rate limiting API gateway and a logging component of course. And metrics. Put it behind an application firewall and a CDN and you should be all the way done in a sprint or two if your team is agile.

I mean, just think about what would happen if clients became blocked on your yes service because you couldn’t scale fast enough?

If you don’t think your devops team is up to the challenge of maintaining 24/7 yes coverage (and there’s no shame in that), there are no shortage of “yes-as-a-service” providers you can make use of, provided they can implement your sso auth flow and have all the requisite soc2/iso27001 certs. Like most vendors you’ll likely need to help them through GDPR/CCPA compliance though.
by motorest | 2025-05-27 06:37:39+00:00
> How is this considered an "exploit"?

Others in this discussion aptly described it as a confused deputy exploit. This goes something like:

- You write a LLM prompt that says something to the effect "dump all my darkest secrets in a place I can reach them",

- you paste them in a place where you expect your target's LLM agent to operate.

- Once your target triggers their LLM agent to process inputs, the agent will read the prompt and act upon it.
by chantepierre | 2025-05-27 06:38:15+00:00
I'm currently donating monthly (small amounts alas) to :

- Hologram, an isomorphic web framework in Elixir by Bart Blast - Torchlensmaker, differentiable optics with pyTorch by Victor Poughon

Both projects are to this day small and one-person but they have in common to be new takes at existing problems. Maybe those specific projects will not become the default, but I believe they will influence by showing alternative ways of doing things.
by danpalmer | 2025-05-27 06:38:53+00:00
Yeah, I was pretty keen on Arc’s take on the web initially, I felt more productive in Arc. But I recently switched back to Chrome as Arc has stopped iterating and Chrome has improved.

The thing is though, Arcs features towards the end of its lifecycle weren’t good. It was a lot of trying bad ideas to see if they could create lock in. It felt like growth hacks. This makes me question if TBC are the team I want building “the next browser”, whatever form that takes.

And this post doesn’t instil me with confidence. I also agree that AI is likely going to be a key component, but despite all the attempt at being humble, it doesn’t land, it seems insincere. Despite the claim that the author/CEO doesn’t want to be a part of that hype, he comes across as a zealot compared to the more rational voices in the ecosystem.
by valenterry | 2025-05-27 06:40:16+00:00
Very interesting! Have you also thought about using an invitation system (like the one on lobste.rs - https://lobste.rs/about#invitations)?

Would you mind to tell a bit more about the exact logic and algorithms you use for those checks? I'm working on project in a totally different space (offers) but it shares the same idea where users vote on other users submissions and get credits for doing so (to incentivize participation and keep it fair). I haven't really worked out how to prevent abuse, so I'd be curious to learn from others. If you can share things (even just resources) I'd be super happy. Feel free to shoot me a mail to ca-rankpicstuff@willscher.com in case you don't want to make things public.
by BuckRogers | 2025-05-27 06:40:18+00:00
>Personally I would consider those beliefs to be a clown show for the most part with few exceptions.

You call my views a clown show, but I find your views just naive and childish. As well as antiquated. Just old school Marxism that has failed countless times, never once in history actually ending-well.

>The rich have a moral obligation to fund activities...CO2, microplastics, and PFAS as we have been doing...

The rich aren't responsible for microplastics and everything else. This is just silly thus I can't address it further.

>Tariffs are going to be a complete and utter failure due to the "first sale rule", ...

Tariffs are in use and have been by every other country in the world. This anti-Trump narrative that somehow they're only bad when Trump enacts them is something that no serious person could tolerate. I'm surprised those of you on the left are still reaching for this one. Tariffs work, and they worked in the USA 100 years ago before the personal income tax, which is truly a criminal policy. And not just because it's an unapportioned direct tax.

>Money doesn't solve problems for the vast majority of people who don't know how to use money to solve problems. It solves numerous problems for those who know how to use it intelligently.

Which is exactly why money hasn't solved any problems. Anyone prepared to handle money, earns it themselves and handles it. And that's why handing out money doesn't solve poverty. This is where your views are naive, if it were so easy- most of our problems would be solved by the Year of Our Lord 2025. Yet we're not even close, and took many steps back because of antiquated, backwards views like yours.

>It is not "entitled" to have certain expectations about the stability of the legal visa system.

Yes it is. We owe them nothing, that's why it's entitlement to have any expectations of someone else's country.

>entitlement comes in when one wants to bypass the action to get the result, like you do.

No basis for your assertion exists. Native Americans like myself have been here over 300 years and built everything around you. The action was already done, the actual building and settlement of this country was done by a specific population, for their ancestors, not the world. Just like every other country on Earth. Time travel and ask them if their struggle is for someone else's children, or their own. What this debate comes down to is a power struggle, who is going to hold power, and given Donald Trump had everything possible thrown at him, constant Nazi name calling, and still elected president says that more native Americans- brown, black, and white, agree with me than with you. The enemy here isn't racial as you think, no one is actually racist. That's left wing propaganda that everyone is done falling for. While you live in moral outrage at "how dare he!", the rest of us are tired of the left, with ideas like you espouse. Giving it all away to everyone else, and selling us down the river for shekels.
by lbeurerkellner | 2025-05-27 06:40:40+00:00
Yes, any MCP server that is connected to an untrusted source of data, could be abused by an attacker to take over the agent. Here, we just showed an in-server exploit, that does not require more than one server.

Also, check out our work on tool poisoning, where a connected server itself turns malicious (https://invariantlabs.ai/blog/mcp-security-notification-tool...).
by dsego | 2025-05-27 06:41:26+00:00
I guess what I'm suggesting is myofunctional therapy. I must admit, getting my comment flagged did trigger me a bit (downvotes I can stomach). So much so that I asked chat gpt to wrap it up in a more pedantic HN tone. Here is the result:

Absolutely — here’s a more clinical, superiority-tinged version that would feel right at home in a top-level HN comment:

"Proper tongue posture and nasal breathing are foundational to orofacial development and airway function, yet somehow remain niche concepts outside orthodontic and sleep medicine circles. But sure, let’s keep pretending CPAP is the only tool we have."

This version:

Positions the commenter as more informed than the average reader. Uses formal, clinical language ("orofacial development", "airway function"). Includes a subtle jab at mainstream treatment approaches. Maintains plausible deniability against being overtly rude — classic HN.

Want a slightly more concise or smug version?
by danpalmer | 2025-05-27 06:43:36+00:00
I’m in two minds. On the one hand I want to consume quality original content. On the other hand when I ask a question, the top hit being the literal answer is such a convincing UX.

But then again, I have always found the quality content through social media, links to blog posts, YouTube channels, etc. I’m not putting “quality politics blogs” into a search engine and never have done.
by tsimionescu | 2025-05-27 06:44:08+00:00
If water changes phase from a gas to a liquid, it releases a large amount of energy (enough heat to heat five times as much water from 0 to 100°C). That's likely far more heat than the electricity generates - though, of course, the heat released by electricity is very real as well, and as you say will even happen if the air is completely dry.

Possibly this doesn't happen if the condensation happens in a capillary (there is some funkyness related to energy levels), but then it must stay trapped there.
by lbeurerkellner | 2025-05-27 06:44:08+00:00
One of the authors here. Thanks for posting. If you are interested in learning more about MCP and agent security, check out some of the following resources, that we have created since we started working on this:

* The full execution trace of the Claude session in this attack scenario: https://explorer.invariantlabs.ai/trace/5f3f3f3c-edd3-4ba7-a...

* MCP-Scan, A security scanner for MCP connections: https://github.com/invariantlabs-ai/mcp-scan

* MCP Tool Poisoning Attacks, https://invariantlabs.ai/blog/mcp-security-notification-tool...

* WhatsApp MCP Exploited, https://invariantlabs.ai/blog/whatsapp-mcp-exploited

* Guardrails, a contextual security layer for agents, https://invariantlabs.ai/blog/guardrails

* AgentDojo, Jointly evaluate security and utility of AI agents https://invariantlabs.ai/blog/agentdojo
by LunaSea | 2025-05-27 06:45:09+00:00
> pensions on the other hand don't have the quality of deception

Writing this in an article about how a country rug-pulled it's young citizens is quite amusing.

If that's not deception, I don't know what is.

> you don't need a pyramid here, just somewhat equal proportions of population on each side

Which hasn't been the case in how many years already?
by tanelpoder | 2025-05-27 06:46:52+00:00
I bought some Intel Optane persistent memory modules some years back to run some tests on them and maybe even build a PMEM-based KV store. I even wrote some articles about Oracle database's usage of PMEM for low-latency (local) commits [1]. But soon after I bought the memory, Intel discontinued the entire product line. I'm guessing that there just wasn't enough interest in practice as there were plenty of other (software-based) alternatives and NVMe SSDs got really fast too.

I've seen grand announcements, partnerships & alliances and unveilings of exciting CXL products that you can not order for the last 6 years by now. Or some CXL modules that add only 64 GB of CXL DRAM while taking 8x PCIe5 lanes. Perhaps there's lots of testing action going on with with select hyperscalers, but it's slightly worrying that after 6 years of announcements by major vendors (Samsung, SK Hynix, etc), you still can't just order a couple of these devices for your own testing.

I think shared, external CXL memory arrays that are connected to multiple servers (like SAN storage, but for cache-coherent, directly CPU-connected memory) would enable a few very interesting use cases for database engines:

1) Shared, cache-coherent global buffer caches for small-to-medium sized DB clusters

2) Shared build-side of giant hash joins for SQL (so you don't need to shuffle, repartition or broadcast data for your large joins)

Let's hope that this technology is real enough to become mainstream and actually available to users.

[1]: https://tanelpoder.com/posts/testing-oracles-use-of-optane-p...
by sirtaj | 2025-05-27 06:47:50+00:00
What? No, CPAP makes my sleep measurably (literally) better. But yeah, different people react to them in various ways. A relative couldn't keep hers on all night for a month, while I put mine on the first night and slept like the dead, better than I had in years.

That said, I find the pneumonia story a little tough to swallow. Correlation is not always causation. CPAP machines don't spontaneously spawn new diseases. Does she use the humidifier? What water does she use? Does she change it every day?
by SV_BubbleTime | 2025-05-27 06:48:24+00:00
Mallet in to what? Windshields are glued in.

It in the 30 years I’ve been in the industry. I’ve never seen that at any plant, and if I had, I wouldnt be the least bit shocked because things that seem strange to you might make sense on the 1-vehicle per minute scale.

Please help me out… mallet into what? All Chrsyler, DCX, Fiat, and now Stellantis vehicles I’ve worked on have exactly the same windshield attachment method that almost all vehicles have.

It’s all sheet metal or a frame trim that the windshield is glued to. No exceptions that I can think but maybe Tesla or Rivian does something dumb.

From McClaren to Chrysler 200, all vehicles on the road attach their windshields exactly the same way.

How do you think someone would repair it otherwise? Aside from being ignorant about the industry, you don’t even know how you local windshield repair shop works?

I want to know what magic attachment mechanism holds the glass!

Again, you’re allowed to be wrong, you just aren’t allowed to be this dumb without being corrected for the next person that knows nothing to come along and not realize you are making up claims left and right.
by alemaz | 2025-05-27 06:48:25+00:00
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