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The privacy nightmare of browser fingerprinting

https://kevinboone.me/fingerprinting.html
247•ingve•3h ago•166 comments

$1900 Bug Bounty to Fix the Lenovo Legion Pro 7 16IAX10H's Speakers on Linux

https://github.com/nadimkobeissi/16iax10h-linux-sound-saga
115•rany_•6d ago•43 comments

Show HN: Forty.News – Daily news, but on a 40-year delay

https://forty.news
12•foxbarrington•1h ago•0 comments

Agent design is still hard

https://lucumr.pocoo.org/2025/11/21/agents-are-hard/
290•the_mitsuhiko•9h ago•156 comments

As 'Dorian Gray' ages, its relevance only grows

https://www.washingtonpost.com/books/2025/11/08/dorian-gray-oscar-wilde-history/
53•apollinaire•1w ago•20 comments

Personal blogs are back, should niche blogs be next?

https://disassociated.com/personal-blogs-back-niche-blogs-next/
553•gnabgib•21h ago•333 comments

Gwern's "Stem Humor" Directory

https://gwern.net/doc/math/humor/index
7•surprisetalk•2h ago•1 comments

China Reaches Energy Milestone by "Breeding" Uranium from Thorium

https://humanprogress.org/china-reaches-energy-milestone-by-breeding-uranium-from-thorium/
88•surprisetalk•2h ago•59 comments

Depot (YC W23) Is Hiring a Staff Infrastructure Engineer

https://www.ycombinator.com/companies/depot/jobs/O2iB56E-staff-infrastructure-engineer
1•jacobwg•2h ago

Helping Valve to power up Steam devices

https://www.igalia.com/2025/11/helpingvalve.html
763•TingPing•1d ago•273 comments

How to see the dead

https://www.asimov.press/p/see-the-dead
55•mailyk•5d ago•7 comments

Samsung's 60% DRAM price hike signals a new phase of global memory tightening

https://www.buysellram.com/blog/samsungs-memory-price-surge-sends-shockwaves-through-the-global-d...
411•redohmy•1w ago•364 comments

TiDAR: Think in Diffusion, Talk in Autoregression

https://arxiv.org/abs/2511.08923
82•internetguy•1w ago•12 comments

Tektronix equipment has been used in many movies and shows

https://vintagetek.org/tektronix-in-movies-shows/
6•stmw•5d ago•1 comments

Show HN: Wealthfolio 2.0- Open source investment tracker. Now Mobile and Docker

https://wealthfolio.app/?v=2.0
610•a-fadil•1d ago•195 comments

Digital echoes: open bus behavior on the compact Macintosh

https://thomasw.dev/post/compact-mac-openbus/
12•zdw•5d ago•0 comments

The Connectivity Standards Alliance Announces Zigbee 4.0 and Suzi

https://csa-iot.org/newsroom/the-connectivity-standards-alliance-announces-zigbee-4-0-and-suzi-em...
100•paulatreides•4d ago•63 comments

'The French people want to save us': help pours in for glassmaker Duralex

https://www.theguardian.com/world/2025/nov/22/french-people-want-to-save-us-help-pours-glassmaker...
125•n1b0m•5h ago•83 comments

Moss Survives 9 Months in Space Vacuum

https://scienceclock.com/moss-survives-9-months-in-space-vacuum/
142•ashishgupta2209•16h ago•61 comments

How I learned Vulkan and wrote a small game engine with it (2024)

https://edw.is/learning-vulkan/
168•jakogut•21h ago•87 comments

We should all be using dependency cooldowns

https://blog.yossarian.net/2025/11/21/We-should-all-be-using-dependency-cooldowns
439•todsacerdoti•1d ago•252 comments

Sharper MRI scans may be on horizon thanks to new physics-based model

https://news.rice.edu/news/2025/sharper-mri-scans-may-be-horizon-thanks-new-physics-based-model
135•hhs•20h ago•32 comments

Original Superman comic becomes the highest-priced comic book ever sold

https://www.bbc.com/news/articles/c8e9rp0knj6o
301•1659447091•15h ago•195 comments

In a U.S. First, New Mexico Opens Doors to Free Child Care for All

https://www.wsj.com/us-news/in-a-u-s-first-new-mexico-opens-doors-to-free-child-care-for-all-2dfd...
273•nairteashop•4h ago•314 comments

The twin probes just launched toward Mars have an Easter egg on board

https://arstechnica.com/space/2025/11/the-twin-probes-just-launched-toward-mars-have-an-easter-eg...
54•pseudolus•1w ago•35 comments

The Uncertain Origins of Aspirin

https://press.asimov.com/articles/aspirin
6•maxall4•4h ago•0 comments

LAPD helicopter tracker with real-time operating costs

https://lapdhelicoptertracker.com/
219•polalavik•22h ago•254 comments

Arduino Terms of Service and Privacy Policy update: setting the record straight

https://blog.arduino.cc/2025/11/21/the-arduino-terms-of-service-and-privacy-policy-update-setting...
90•manchoz•23h ago•80 comments

New Apple Study Shows LLMs Can Tell What You're Doing from Audio and Motion Data

https://9to5mac.com/2025/11/21/apple-research-llm-study-audio-motion-activity/
47•andrewrn•4h ago•19 comments

Childhood Friends, Not Moms, Shape Attachment Styles Most

https://nautil.us/childhood-friends-not-moms-shape-attachment-styles-most-1247316/
265•dnetesn•1w ago•96 comments
Open in hackernews

China Reaches Energy Milestone by "Breeding" Uranium from Thorium

https://humanprogress.org/china-reaches-energy-milestone-by-breeding-uranium-from-thorium/
88•surprisetalk•2h ago

Comments

T-A•1h ago
A better explanation of the significance:

https://www.stdaily.com/web/English/2025-11/17/content_43298...

cubefox•12m ago
> Now, the research team is conducting systematic studies on the key scientific issues related to adding thorium, and aims to completethe construction of a 100-megawatt TMSR demonstration project, and begin operation by 2035.

For comparison: A commercial nuclear power plant is 1 gigawatt, a 10x difference. I assume this would be the next step.

jonplackett•1h ago
I think I read recently that this was a US idea that was abandoned that China took up and made it work. Is that accurate?
T-A•1h ago
Yes: https://en.wikipedia.org/wiki/Thorium-based_nuclear_power#Hi...
jbverschoor•1h ago
Well, fible energy is trying to do lots. Gates invested in MSTR (molten salt thorium reactor).

But regulation, while it has its purposes, stifles many things. At the same time time it’s not even doing what they were meant for.

There are a number of countries being run far better than the US or the EU

dmix•41m ago
> There are a number of countries being run far better than the US or the EU

It will be funny if China is what convinces the US to be more open to free industry. Opposite day vs the 1970s

bilbo0s•21m ago
To be fair, these advances are not being made in China due to "free industry". They have something of a command economy for their critical sectors. So it's unfair not to point out that it's easy to make advances if a nation as a whole points to a hill and says, "take that hill". Of course you can do it under those circumstances.

If it's just your company or some trifling consortium trying to develop nuclear energy advances in a "free industry" environment, the guy who is just slapping up windmills, [T Boone Pickens RIP], is just gonna mop the floor with you. There's just no way to compete on moonshots like that.

impossiblefork•1h ago
Historical experiments with alternative fuel cycles, not serious development attempts. A serious development attempt happened in India though.
lunar-whitey•46m ago
No country has seriously invested in the thorium fuel cycle because it cannot be used to create weapons. Unfortunately, the technology also began to look most promising as an energy source around the same time the Three Mile Island nuclear accident effectively ended all interest in nuclear energy in the United States.
retrac•33m ago
India has shown some of the most interest to date, due to their lack of domestic uranium reserves. But it's been slow going their fast breeder reactor plans were delayed by like two decades. But it is built and it was loaded with fuel last month [0]

The French interest in breeder reactors and nuclear reprocessing also originates from a similar concern about lack of domestic access to raw uranium. Though Super-phoenix [0] was a more traditional uranium -> plutonium approach and not thorium. They gave up because just using uranium is way, way cheaper than synthesizing your own fissile materials.

[0] https://www.world-nuclear-news.org/articles/indias-prototype...

[1] https://en.wikipedia.org/wiki/Superph%C3%A9nix

lazide•32m ago
Also, it’s only energy positive under some specific carefully managed conditions, and is a real pain to make work.

If you have easy access to uranium, you just use it directly instead.

datadrivenangel•32m ago
Thorium can be used to make weapons via the breeding cycle. It's much less convenient and straightforward than uranium/plutonium, but it is possible.
lunar-whitey•22m ago
Theoretically, perhaps, but I don’t think anyone with a serious interest in weapons would pursue it. From a nonproliferation perspective, I’d guess the infrastructure necessary to remove contaminants from uranium bred through the thorium cycle would be costly and difficult to conceal.
datadrivenangel•15m ago
Multiple countries have detonated nuclear bombs using U-233 derived from thorium reactors! [0] Practically I agree with you that thorium is proliferation resistant and if someone is bomb hungry they won't prioritize it, but if you want to set up the bomb and all you have is thorium... The infrastructure wouldn't necessarily be significantly larger or worse than conventional enrichment.

0 - https://en.wikipedia.org/wiki/Uranium-233

_trampeltier•1h ago
This came up several times the last few weeks, but never stayed on the front for long. Also no comments.

I guess soon the west has to copy chinas tech.

pfdietz•1h ago
Breeding is a technology looking for a business case.

It's more expensive than just using fresh uranium in current market conditions. It's a way from keeping future uranium shortages from making nuclear power more expensive; it's not a way to make nuclear cheaper than it currently is.

NewJazz•56m ago
Emphasis on current market conditions. Relations with uranium mining countries and environmental opposition to uranium mining could shift conditions.
SirHumphrey•8m ago
The truth is that nuclear power is not that financially attractive at the present and would the price of uranium rise enough that breeders would become economically viable most countries would just stop bothering with nuclear power altogether.
cpursley•1m ago
> The truth is that nuclear power is not that financially attractive

Let me fix that for you: "The truth is that nuclear power is not that financially attractive in the high cost West"

lunar-whitey•50m ago
There is no business case for basic research, but if you stop basic research long enough you will have no business. The United States and its allies seem to have completely forgotten this.
HPsquared•43m ago
It makes sense for big monopolies like Bell, or the CCP. The investment can be justified if the ones investing are confident they will be able to capture the value and not some competitor.
lunar-whitey•28m ago
Bell Labs also served to maintain positive perceptions of the monopoly. Unix was famously developed despite the knowledge that AT&T would not be able to offer it as an independent product.
adrian_b•48m ago
They highlight less the advantages from breeding, than other advantages of the molten salt design, like not needing a lot of cooling water, which allows this reactor to operate in the Gobi desert, the possibility of replacing the fuel without halting the reactor and various safety features.
dmix•44m ago
It also apparently provides a way to make reactors that don’t depend as much on water so they don’t all have to be near the coast.

This would allow Western China to also develop reactors to help underpin their renewable and coal energy.

> The interest in MSR technology and Thorium breeding did not disappear however. China's nuclear power production relies heavily on imported uranium,[10] a strategic vulnerability in the event of i.e. economic sanctions. Additionally, the relative lack of water available for cooling PWRs west of the Hu line is a limiting factor for siting them there.

https://en.wikipedia.org/wiki/TMSR-LF1?wprov=sfti1#History

JumpCrisscross•40m ago
> also apparently provides a way to make reactors that don’t depend as much on water so they don’t all have to be near the coast

Non-water microreactors broadly fall into two categories: ones using a different moderator, most commonly sodium, a sodium salt or helium; and those using heat pipes. Most microreactor designs don’t use water.

littlestymaar•5m ago
Nuclear plants don't need more water than a coal plant of the same power, they both use the same steam turbine with water as cold source.
inglor_cz•12m ago
Reducing the energy sector to pure business would probably work in the 1990s, but not now, when countries are afraid of strategic dependence on potentially hostile suppliers.

Uranium isn't as ubiquitous as, say, natural gas, and stockpiling it comes with a big heap of physical problems. I can definitely see countries spending on more expensive technology if it comes with more energy security.

littlestymaar•7m ago
> in current market conditions.

That is, as long as we don't build more nuclear power plants.

If you want to increase nuclear power adoption, then you're not going to stay in “current market conditions” for long.

HPsquared•1h ago
The notable thing here is that it's a molten salt reactor design, where the fuel is dissolved in a molten salt (FLiBe). This allows online continuous processing of the fuel, unlike with solid fuel rods sealed inside a pressure vessel.

This unlocks a lot of options for the fuel cycle, including the use of thorium.

This work builds on a previous molten salt reactor experiment at Oak Ridge, decades ago. There's a whole lore about MSRs.

JumpCrisscross•40m ago
> notable thing here is that it's a molten salt reactor design

Notable, but not unique. The unique bit is it burns thorium.

AtlasBarfed•23m ago
It breeds thorium to fissionable uranium from a starting fissionable uranium starter fuel. It doesn't directly use thorium for fuel.

What people need to understand about the cycle efficiency is that when you mine uranium, the fissionable part of uranium (U-235) is only 1% of that uranium, the rest is nonfissionable U-238.

Thorium is about twice as abundant as Uranium (all isotopes). The MSR uses Thorium to create U-233, a fissionable but not naturally occurring Uranium isotope.

So the "unlimited energy aspect" is that about 200-300x more breedable Thorium exists than fissionable U-235.

A MSR nation could also try to breed U-238 into plutonium, which would provide another 100x more breeding stock, although LFTR never talked about U-238 breeding. IIRC the plutonium may be difficult to handle because of gamma rays, but I don't recall exactly.

While I don't have confidence that even LFTR/MSR reactors can get economical enough to challenge gas peakers, it may be possible to make truly price-competitive MSR electricity with the right modular design. I wish the Chinese the best of luck, because if they do it will spur the rest of the world to adopt this about-as-clean-and-safe-as-it-gets nuclear design.

rhoads•13m ago
That's what you learn playing factorio
JumpCrisscross•5m ago
> Thorium is about twice as abundant as Uranium

China has thorium, and while less than others [1], it’s better than they do with uranium [2].

> it may be possible to make truly price-competitive MSR electricity with the right modular design

Yes. But probably not in the near term with thorium. This isn’t designed to be cheaper. It’s designed to be more available to China than being dependent on Russian deposits.

[1] https://www.nature.com/articles/492031a

[2] https://www-pub.iaea.org/MTCD/Publications/PDF/Pub1800.pdf

bilsbie•36m ago
What absorbs the neutrons then?
lazide•33m ago
The thorium cycle is generally neutron negative.
JumpCrisscross•25m ago
> thorium cycle is generally neutron negative

Source for the fuel cycle?

Thorium 232 -> 233 is neutron negative. But after that you get all kinds of nonsense.

api•1h ago
We have basically limitless carbon free energy with the tech we have now: solar, wind, batteries, fission breeders, large power grids that can move power around cheaply, etc. Put all those together and we have incredible energy abundance.

We also have the ability to electrify most transport except maybe long haul trucking and long haul aviation. Aviation (ALL aviation) accounts for less than 5% of global CO2 emissions, which means we could leave that alone and cut elsewhere until we have batteries and other infrastructure good enough for that.

Build all this out and it'll be cheaper and more scalable than what we currently have.

We in the USA choose to stick with ancient technology because we have a sunk cost and an existing political power structure built around it. Meanwhile China is eating our lunch. Make America Great Again! By... pretending it's 1945 and trying to LARP the previous century.

Classic innovators' dilemma at the national level.

HPsquared•48m ago
If grid energy was cheap enough, synthetic fuel for aircraft and trucks would be competitive.
nickserv•40m ago
> We in the USA choose to stick with ancient technology because we have a sunk cost and an existing political power structure built around it.

Yes, and also vast oil and gas reserves China doesn't have.

Also there is strong public fear and dislike of nuclear power.

In countries where there are no or little fossil fuels it is mainly this public opinion which has crippled the nuclear industry. Germany is a prime example.

Public opinion is obviously much less important in China.

seanmcdirmid•32m ago
> Public opinion is obviously much less important in China.

That really isn’t true. The reason Shanghai didn’t expand their maglev to Hangzhou is because residents were worried about electrical magnetic radiation, which I don’t think is really a thing. Nuclear took a long time to get started in China because people thought the government to be inept and corrupt, an image that has only recently faded away in the last decade. Without free elections, public opinion is actually much more important if you want to avoid economically destructive riots.

But this all happens in back rooms, the legal system isn’t very relevant, so if you have an issue but it isn’t a very popular one, you don’t really have any recourse. For example, niche environmental issues, or ones that aren’t widely recognized yet as dangerous…

fragmede•16m ago
> We in the USA choose to stick with ancient technology because we have a sunk cost and an existing political power structure built around it.

You don't want to discount the cultural attachment people have to what their parents did and their childhood.

SoftTalker•1h ago
China has distracted the USA energy focus by dumping cheap solar panels here while continuing to develop advanced nuclear generation capabilities at home.
ragebol•1h ago
China is simply betting on all horses: solar, wind, thorium, batteries, coal even, anything to not buy foreign oil and be as independent, self-sufficient as possible. Seems like it's working too
DougN7•1h ago
Seems like a wise thing to do too.
ragebol•18m ago
Yup.. Happens to align somewhat with climate goals too, luckily for the rest of us. Once solar+batteries becomes the cheapest form of generation, the coal usage should also drop, if that isn't already the case
JumpCrisscross•2m ago
> Once solar+batteries becomes the cheapest form of generation, the coal usage should also drop

Marginal versus bulk. It can make sense, economically, to keep building coal plants even if solar is cheaper if you’re building solar as fast as you can and still need more power.

lordofgibbons•1h ago
How exactly has it distracted the U.S?

I don't see the U.S rushing to adopt either renewables or nuclear. We're just increasing our fossil fuel burning (natural gas).

dostick•1h ago
If China got alien spacecraft, it must have on board an energy source for its warp engine. Something doesn’t add up.
deadbabe•1h ago
China is far better at long term societal planning. Ultimately, I expect they will be the ones who can solve the climate crisis, after being one of the biggest contributors to the problem.
cubefox•5m ago
Actually by far the biggest, in terms of total greenhouse emissions (30% of the world). Though other countries emit a lot more per capita.
SilverElfin•47m ago
This type of progress shows China is capable of moving from an economy that’s build on labor arbitrage or copying others to genuine innovation. It’s also further evidence of the extreme competence of the CCP in governance, which I feel should be acknowledged despite their authoritarian negatives.
inglor_cz•21m ago
"extreme competence of the CCP in governance"

I don't think it makes sense to extrapolate from one particular technical field to governance in general.

The US managed to defeat both Nazi Germany and Japan plus develop nuclear weapons, all in 1941-5. Was it a proof of extreme competence of the US government in general? The some government tolerated abuse of blacks and forced segregation in the South, I would call it a serious governance failure.

DeathArrow•43m ago
I wonder if people would think China copied this from the West.
jmyeet•38m ago
A detailed explanation of the Thorium Fuel Cycle [1].

I'm glad China is doing this even though I'm skeptical about nuclear power ever being commercially viable. At least they're trying different things.

[1]: https://www.youtube.com/watch?v=2IqcRl849R0&t=384s

hit8run•22m ago
Meanwhile Germany just decommissioned its last nuclear reactors. Given the challenges of baseload renewable generation, it's frustrating to watch working infrastructure being dismantled while we're still heavily dependent on fossil fuels.
BoredPositron•19m ago
By all the doomerism about German and nuclear there is at least Wendelstein 7-x doing frontier work. It's fine to get rid of legacy nuclear if there is a feasible bridge ahead.
littlecranky67•16m ago
Comparing those old conventional reactors to MSR is not suitable at all. And they were not fully functional past their expiry date.