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Stardew Valley developer made a $125k donation to the FOSS C# framework MonoGame

https://monogame.net/blog/2025-12-30-385-new-sponsor-announcement/
238•haunter•1h ago•74 comments

Scaffolding to Superhuman: How Curriculum Learning Solved 2048 and Tetris

https://kywch.github.io/blog/2025/12/curriculum-learning-2048-tetris/
31•a1k0n•1h ago•2 comments

2026: The Year of Java in the Terminal

https://xam.dk/blog/lets-make-2026-the-year-of-java-in-the-terminal/
34•based2•1h ago•22 comments

Efficient method to capture CO2 from the atmosphere / Univ of Helsinki

https://www.helsinki.fi/en/news/innovations/efficient-method-capture-carbon-dioxide-atmosphere-de...
176•lrasinen•3h ago•143 comments

Akin's Laws of Spacecraft Design [pdf]

https://www.ece.uvic.ca/~elec399/201409/Akin%27s%20Laws%20of%20Spacecraft%20Design.pdf
173•tosh•6h ago•33 comments

Zero-Code Instrumentation of an Envoy TCP Proxy Using eBPF

https://sergiocipriano.com/beyla-envoy.html
37•sergiocipriano•2h ago•8 comments

Fifteen Most Famous Transcendental Numbers

https://sprott.physics.wisc.edu/pickover/trans.html
82•vismit2000•4h ago•34 comments

The Compiler Is Your Best Friend, Stop Lying to It

https://blog.daniel-beskin.com/2025-12-22-the-compiler-is-your-best-friend-stop-lying-to-it
9•based2•1h ago•0 comments

Winnie-the-Pooh brings 100 years of fame to forest

https://www.bbc.com/news/articles/c4g9dzj1xj3o
34•1659447091•6d ago•2 comments

Show HN: Use Claude Code to Query 600 GB Indexes over Hacker News, ArXiv, etc.

https://exopriors.com/scry
188•Xyra•9h ago•54 comments

Back to the future: the story of Squeak, a practical Smalltalk written in itself [pdf] (1997)

http://www.vpri.org/pdf/tr1997001_backto.pdf
48•fanf2•6d ago•3 comments

When square pixels aren't square

https://alexwlchan.net/2025/square-pixels/
30•PaulHoule•3h ago•18 comments

Tell HN: Happy New Year

185•schappim•3h ago•106 comments

Doom in Django: testing the limits of LiveView at 600.000 divs/segundo

https://en.andros.dev/blog/7b1b607b/doom-in-django-testing-the-limits-of-liveview-at-600000-divss...
109•andros•3d ago•34 comments

A faster heart for F-Droid

https://f-droid.org/2025/12/30/a-faster-heart-for-f-droid.html
486•kasabali•22h ago•197 comments

Activeloop (YC S18) Is Hiring MTS – Back End Engineer

https://careers.activeloop.ai/?ashby_jid=d8c54147-5fc8-48ba-a097-a6ae046c42bd
1•davidbuniat•4h ago

Tixl: Open-source realtime motion graphics

https://github.com/tixl3d/tixl
126•nateb2022•4d ago•18 comments

Animated AI

https://animatedai.github.io/
269•frozenseven•5d ago•23 comments

2025 was a disaster for Windows 11 as bugs and intrusive features erode trust

https://www.windowscentral.com/microsoft/windows-11/2025-has-been-an-awful-year-for-windows-11-wi...
13•speckx•39m ago•2 comments

Drugmakers raise US prices on 350 medicines despite pressure

https://www.reuters.com/business/healthcare-pharmaceuticals/drugmakers-raise-us-prices-350-medici...
70•JumpCrisscross•2h ago•62 comments

Nvidia GB10's Memory Subsystem, from the CPU Side

https://chipsandcheese.com/p/inside-nvidia-gb10s-memory-subsystem
13•ingve•4h ago•2 comments

Show HN: LoongArch Userspace Emulator

https://github.com/libriscv/libloong
28•fwsgonzo•1w ago•9 comments

Show HN: 22 GB of Hacker News in SQLite

https://hackerbook.dosaygo.com
643•keepamovin•23h ago•194 comments

FediMeteo: A €4 FreeBSD VPS Became a Global Weather Service

https://it-notes.dragas.net/2025/02/26/fedimeteo-how-a-tiny-freebsd-vps-became-a-global-weather-s...
355•birdculture•21h ago•85 comments

'Three norths' alignment about to end

https://www.spatialsource.com.au/three-norths-alignment-about-to-end/
59•altilunium•1w ago•24 comments

Claude wrote a functional NES emulator using my engine's API

https://carimbo.games/games/nintendo/
50•delduca•3h ago•49 comments

Readings in Database Systems (5th Edition) (2015)

http://www.redbook.io/
124•teleforce•14h ago•11 comments

Honey's Dieselgate: Detecting and tricking testers

https://vptdigital.com/blog/honey-detecting-testers/
323•AkshatJ27•19h ago•136 comments

Who Invented the Transistor?

https://people.idsia.ch/~juergen/who-invented-the-transistor.html
12•todsacerdoti•4h ago•1 comments

A Vulnerability in Libsodium

https://00f.net/2025/12/30/libsodium-vulnerability/
316•raggi•23h ago•44 comments
Open in hackernews

Iron Beam: Israel's first operational anti drone laser system

https://mod.gov.il/en/press-releases/press-room/israel-mod-and-rafael-deliver-first-operational-high-power-laser-system-iron-beam-to-the-idf
68•fork-bomber•2h ago

Comments

condensedcrab•2h ago
From Rafael’s site: https://www.rafael.co.il/system/iron-beam/

100kW laser is nothing to joke about, but seems a good application for anti drone tasks. Fiber lasers are pretty snazzy.

cogman10•1h ago
It's quiet the power requirement. I wonder how long it has to focus on a drone to eliminate it. Like how long is this thing consuming 100kW?
jstummbillig•1h ago
Hm, you think longer than the laser is firing? Could there be windup?
cogman10•1h ago
I imagine there's some sort of storage system, like a huge bank of ultra-capacitors, that are constantly kept charged.

The wind up would be if that bank is depleted and they need to recharge. Delivering 100kW for a short period of time is definitely a feat.

jstummbillig•1h ago
Ah, good point, that seems likely.
cenamus•1h ago
Good question, probably depends a lot on how much energy actually makes it to the target some distance away. And then how much is actually absorbed. Probably depends more on the power density then, rather than total power?

Can't imagine they get a very small spot at multiple km unless they use gigantic lenses or multiple independent laser focused on the same spot

condensedcrab•1h ago
Even small divergence angles add up if they’re trying to intercept at visual ranges outside of traditional munitions.

That being said, probably ~10kW/m^2 is enough to overheat or disable a UAV

JumpCrisscross•1h ago
Maybe it involves multiple converging beams to reduce transmission losses?
tguvot•16m ago
yes it does
JumpCrisscross•1h ago
Huh, to what degree is this technology gatekept by battery advances?

A few decades ago lasers were dismissed because they involved chemical reagents for high power and explosive capacitors for even low-power applications.

cogman10•54m ago
> Huh, to what degree is this technology gatekept by battery advances?

Not too much. The power delivery was doable even 15 years ago. It would have just been more expensive and heavier.

The bigger issue I believe would have been the lens and tracking capabilities. For the tracking to work you need some pretty good cameras, pretty fast computers, and pretty good object recognition. We are talking about using high speed cameras and doing object detection each frame

xenospn•1h ago
Just in time for Iran 2.0
underdeserver•1h ago
In the war in June, Iran fired 500kg warhead ballistic missiles. These were the only lethal munition they used, killing a couple dozen civilians.

The Iron Beam is not relevant against ballistic missiles.

JumpCrisscross•1h ago
> Iran fired 500kg warhead ballistic missiles

Iran also fired “over 1,000 suicide drones” [1].

[1] https://en.wikipedia.org/wiki/Iran%E2%80%93Israel_war

mcpar-land•1h ago
Don't Get Distracted

https://calebhearth.com/dont-get-distracted

endtime•1h ago
This is designed to save people.
cogman10•1h ago
Could definitely be used in an offensive capacity. I don't think it'll be a red alert 2 style prism cannon, but I do think it can be used to gain air superiority. With a long enough runtime, this thing could definitely take out a plane.

That said, it's pretty tame. We can already take out planes with flak cannons. This is just more efficient.

jmyeet•1h ago
There is no such thing as a defensive weapon.

You might be tempted to say "what about a missile shield?" but such a thing allows the owner to act with impunity with levels of violence we arguably haven't seen since 1945.

As a real example of this, the only reason a deeper conflict didn't develop with Iran this year was because Iran demonstrated they could overwhelm the various layers of Israel's missile shield and Iran seriously depleted the various munitions used by those air defense systems (eg interceptors, THAAD) and those take a long time to replenish.

JumpCrisscross•1h ago
> There is no such thing as a defensive weapon

I agree if we reframe it as “purely defensive,” though there is a bit of tautology invoked with the “weapon” qualifier.

That said, there is legitimacy to developing defensive arms, even if one doesn’t like the ones doing it.

> the only reason a deeper conflict didn't develop with Iran this year was because Iran demonstrated they could overwhelm the various layers of Israel's missile shield

This hypothesis is not sustained by Iran’s reduced firing rate throughout the conflict. All evidence suggests Iran lost its war with Israel and would lose it again if they go for round 2.

oytis•1h ago
"Act with impunity" in case of Israel is basically just existing
jstummbillig•30m ago
> You might be tempted to say "what about a missile shield?" but such a thing allows the owner to act with impunity with levels of violence we arguably haven't seen since 1945.

I would still say "what about a missile shield?".

If a missile shield is a weapon, because of its affordances, then any object is a weapon. And while that's marginally true I don't think we get anywhere by entertaining category errors.

If something enables aggression, because it makes counter attacks unreasonable, that seems like a fairly nice thing to have more of, in a world where destruction is far too easy and construction is fairly hard.

halJordan•14m ago
This is a good article. I disagree with its implications. I would agree that the average us citizen is much too far removed from the defense industrial complex and that creates these situations where a Google engineer (not necessarily this guy) is perfectly willing to help destroy American society with his advertising tech but balks at automating image tagging for the dod's big data lake because would rather have another 9/11 than be responsible for a false positive in the ME.
yonisto•1h ago
It is so sad the Humanity needs to develop weapons...
geertj•1h ago
On the last day of the year, I am taking a few minutes to linger on this. At face value, most would agree with this, myself included. But I think we can dive one layer deeper. There are different schools of thoughts whether mankind is inherently good or evil. Over the years, I have become pretty firm believer that every person has the innate capacity for both good and evil, and the outcome is determined by both character and circumstances. Solzhenitsyn famously wrote (quote by Gemini):

"The line separating good and evil passes not through states, nor between classes, nor between political parties either—but right through every human heart—and through all human hearts. This line shifts. Inside us, it oscillates with the years. And even within hearts overwhelmed by evil, one small bridgehead of good is retained. And even in the best of all hearts, there remains … an unuprooted small corner of evil."

If you subscribe to this, then a weapons system can also be a force for good, if used by an entity for the purpose of "peace through strength". The strength keeps our innate capability for evil in check, as the consequences for evil would be guaranteed. A case in point is the MAD doctrine for nuclear weapons which has prevented a world war for the last 80 years.

I'd appreciate philosophical replies. Am I wrong, either in a detail or at the core of the argument? Are there additional layers? I would like to kindly ask to keep replies away from views on the specific players in this specific press release. We'd just be reiterating our positions without convincing anyone.

(edit: grammar, slight rewording)

yonisto•1h ago
I totally understand the need for weapons. It is just makes me sad.

And I think Solzhenitsyn is wrong. There are psychopathic people that have no good in their hearts. Sure, with the right upbringing that could be kind and good but at a given moment they are what they are... psychopaths.

judah•1h ago
Israel saw over 16,000 rocket attacks last year from fundamentalist groups like Hamas, Hezbollah, Iran, and Yemen. The Iron Dome intercepted ~90% of them, resulting in thousands of lives saved.

Iron Beam is the newer incarnation of this technology that uses lasers to intercept incoming rockets and drones with precision and much lower cost. Wonderful technology.

RegnisGnaw•1h ago
Lets send some over to Ukraine.
elcritch•1h ago
Each Iron Dome interception cost many times more than the cost of the rockets. This will make it cheaper for other poorer nations to afford and operate.
jokoon•1h ago
I wish they would make a demonstration
dontlaugh•1h ago
It’s disappointing to keep being shown that if HN was around in the 40s, it would overall be condemning the Warsaw ghetto uprising and arguing all those living there should be further punished.
causal•1h ago
A lot of comments decrying new weapons tech, but I think drone defense tech is particularly critical right now and going to save a lot of lives. Put another way, I don't think we would be against new clothing that made bullets less effective, even if it remains terrible that such clothing is needed.

Especially as AI becomes better and cheaper and suicide drones become more nimble and autonomous. If you have seen any of the horrifying footage out of Ukraine you will understand how badly we need more effective and cheaper drone defense as soon as possible.

cogman10•1h ago
Yeah, I see this as ultimately a wash.

In Russia/Ukraine, drones have proven to be a very real threat to deal with (arguably also in Iraq).

What this means is wealthy nations will snatch up or recreate this and deploy it. That will stop smaller resistance forces from either defending or attacking. Depending on the nation in question this could both good or bad. Just like drones, guns, or tanks.

Effectively, this puts the status quo back to where it was before mass drone deployments.

causal•1h ago
Which, IMO, is better than having swarms of cheap bombs flying around.

Taken to the extreme, I also prefer the current status quo vs. everyone having a nuclear-tipped ICBM, and would welcome a countermeasure if cheap ICBMs became a thing.

loloquwowndueo•1h ago
Iron Dome, Iron Beam… what next, Iron Curtain?
tguvot•13m ago
https://en.wikipedia.org/wiki/Iron_Curtain_(countermeasure)
elcritch•1h ago
Personally I think that defensive technology like this is fantastic. It means that innocent citizens will be protected from constant bombardment or thread of bombardment by cheap mass produced rockets or drones. Israeli civilians have faced bombardment by tens of thousands of rockets from Gaza for the last 20 years [1].

Outside the Middle East there's many areas threatened by combatants with similar cheap missiles. Perhaps Ukraine is an obvious one. We're seeing rises in conflicts across parts of Africa, Cambodia/Thailand, Pakistan/India. Many governments are looking into buying these to protect their countries.

This technology hopefully can protect populations from destabilizing forces funded on the cheap by foreign powers. Machine guns changed warfare [2] and drones have been a similar massive change in warfare making it cheaper and easier to attack and destabalize regions. Though of course there's downsides as well [3].

1: https://www.mideastjournal.org/post/how-many-rockets-fired-a... 2: https://online.norwich.edu/online/about/resource-library/how... 3: https://claritywithmichaeloren.substack.com/p/iron-dome-part...

JumpCrisscross•1h ago
> It means that innocent citizens will be protected from constant bombardment or thread of bombardment by cheap mass produced rockets or drones

One could also hope that e.g. Iran starts focusing its economy on the wellbeing of its people versus playing regional cop to America’s world police.

xenospn•48m ago
They haven't done so in decades. You think they'll start now?
JumpCrisscross•39m ago
> You think they'll start now?

No. But I can hope.

jmyeet•1h ago
Three thoughts:

1. Just to repeat myself from another comment on this thread, there is no such thing as a defensive weapon. Were it not for the various missile shields, the Israeli state wouldn't act with wanton abandon against its own citizens and its neighbours. All of the various war crimes and terror attacks are a direct consequence of the effectiveness of a "defensive" missile shield.

Let me pose this question to you: if these were purely defensive technologies, why don't we give them to everyone, including the Palestinians? and

2. Israel has already ruled out giving Ukraine the anti-missile (and assumedly anti-drone) defenses [1]; and

3. Many people, yourself included it seems, need to examine these conflicts around the world through the lens of historical materialism.

Take the genocide and conflict in Sudan. The SAF are arguably the ones with the "cheap rockets" here. Should we be giving the RSF anti-drone technology? The RSF are backed by the UAE using US weapons. Why? To loot Sudanese gold.

Why did Russia invade Ukraine? Territory, access to the Black Sea, resources and to create a land bridge to Crimea that had otherwise become extremely expensive to maintain as a colonial outpost. Like, just look at a map of controlled territory.

But why is it in a stalemate? In part because Russia is a nuclear power but also because the West is unwilling to let Ukraine do the one thing it could do to defend itself properly and that is to attack Russian energy infrastructure. Despite the sanctions, Russia is still allowed to sell oil and gas to places like Hungary, Slovakia, France, Belgium, India and China.

Back to the Middle East, we have Yemen, who was devastated by war and genocide at the hands of another US ally, Saudi Arabia.

The solution to these conflicts isn't more weapons, not even "defensive weapons". It's solving the underlying economic conditions that created that conflict in the first place.

[1]: https://www.timesofisrael.com/netanyahu-rules-out-giving-ukr...

xg15•1h ago
Someone should give people in Gaza or the West Bank or Lebanon the same tech.