frontpage.
newsnewestaskshowjobs

Made with ♥ by @iamnishanth

Open Source @Github

Complete silence is always hallucinated as "ترجمة نانسي قنقر" in Arabic

https://github.com/openai/whisper/discussions/2608
145•edent•2h ago•56 comments

Global hack on Microsoft Sharepoint hits U.S., state agencies, researchers say

https://www.washingtonpost.com/technology/2025/07/20/microsoft-sharepoint-hack/
588•spenvo•1d ago•263 comments

Uv: Running a script with dependencies

https://docs.astral.sh/uv/guides/scripts/#running-a-script-with-dependencies
280•Bluestein•8h ago•80 comments

AI comes up with bizarre physics experiments, but they work

https://www.quantamagazine.org/ai-comes-up-with-bizarre-physics-experiments-but-they-work-20250721/
155•pseudolus•6h ago•71 comments

An unprecedented window into how diseases take hold years before symptoms appear

https://www.bloomberg.com/news/articles/2025-07-18/what-scientists-learned-scanning-the-bodies-of-100-000-brits
26•helsinkiandrew•3d ago•7 comments

Jujutsu for busy devs

https://maddie.wtf/posts/2025-07-21-jujutsu-for-busy-devs
144•Bogdanp•7h ago•141 comments

What happens when an octopus engages with art?

https://www.cnn.com/2025/07/17/style/what-happens-when-an-octopus-engages-with-art
19•robinhouston•4d ago•7 comments

Kapa.ai (YC S23) is hiring a software engineers (EU remote)

https://www.ycombinator.com/companies/kapa-ai/jobs/JPE2ofG-software-engineer-full-stack
1•emil_sorensen•51m ago

What went wrong inside recalled Anker PowerCore 10000 power banks?

https://www.lumafield.com/article/what-went-wrong-inside-these-recalled-power-banks
391•walterbell•13h ago•184 comments

Nasa’s X-59 quiet supersonic aircraft begins taxi tests

https://www.nasa.gov/image-article/nasas-x-59-quiet-supersonic-aircraft-begins-taxi-tests/
64•rbanffy•2d ago•38 comments

AccountingBench: Evaluating LLMs on real long-horizon business tasks

https://accounting.penrose.com/
454•rickcarlino•15h ago•118 comments

Don't bother parsing: Just use images for RAG

https://www.morphik.ai/blog/stop-parsing-docs
246•Adityav369•14h ago•65 comments

TrackWeight: Turn your MacBook's trackpad into a digital weighing scale

https://github.com/KrishKrosh/TrackWeight
530•wtcactus•17h ago•129 comments

AI could have written this: Birth of a classist slur in knowledge work [pdf]

https://advait.org/files/sarkar_2025_ai_shaming.pdf
25•deverton•5h ago•32 comments

Look up macOS system binaries

https://macosbin.com
30•tolerance•3d ago•5 comments

Losing language features: some stories about disjoint unions

https://graydon2.dreamwidth.org/318788.html
74•Bogdanp•3d ago•19 comments

Erlang 28 on GRiSP Nano using only 16 MB

https://www.grisp.org/blog/posts/2025-06-11-grisp-nano-codebeam-sto
147•plainOldText•12h ago•8 comments

New records on Wendelstein 7-X

https://www.iter.org/node/20687/new-records-wendelstein-7-x
214•greesil•16h ago•91 comments

The Game Genie Generation

https://tedium.co/2025/07/21/the-game-genie-generation/
120•coloneltcb•13h ago•51 comments

The surprising geography of American left-handedness (2015)

https://www.washingtonpost.com/news/wonk/wp/2015/09/22/the-surprising-geography-of-american-left-handedness/
32•roktonos•10h ago•18 comments

He Rewrote Everything in Rust – Then We Got Fired

https://medium.com/@ThreadSafeDiaries/he-rewrote-everything-in-rust-then-we-got-fired-293e3e16c2d3
3•wallflower•3d ago•3 comments

Tokyo's retro shotengai arcades are falling victim to gentrification

https://www.theguardian.com/world/2025/jul/18/cult-of-convenience-how-tokyos-retro-shotengai-arcades-are-falling-victim-to-gentrification
35•pseudolus•3d ago•11 comments

What will become of the CIA?

https://www.newyorker.com/magazine/2025/07/28/the-mission-the-cia-in-the-21st-century-tim-weiner-book-review
92•Michelangelo11•13h ago•148 comments

Scarcity, Inventory, and Inequity: A Deep Dive into Airline Fare Buckets

https://blog.getjetback.com/scarcity-inventory-and-inequity-a-deep-dive-into-airline-fare-buckets/
100•bdev12345•12h ago•37 comments

We have made the decision to not continue paying for BBB accreditation

https://mycherrytree.com/blogs/news/why-we-have-made-the-decision-to-not-continue-paying-for-accreditation-from-the-better-business-bureau-bbb
90•LorenDB•5h ago•46 comments

Workers at Snopes.com win voluntary recognition

https://newsguild.org/workers-at-snopes-com-win-voluntary-union-recognition/
96•giuliomagnifico•4h ago•4 comments

I know genomes. Don't delete your DNA

https://stevensalzberg.substack.com/p/i-know-genomes-dont-delete-your-dna
49•bookofjoe•12h ago•62 comments

Occasionally USPS sends me pictures of other people's mail

https://the418.substack.com/p/a-bug-in-the-mail
171•shayneo•16h ago•168 comments

I've launched 37 products in 5 years and not doing that again

https://www.indiehackers.com/post/ive-launched-37-products-in-5-years-and-not-doing-that-again-0b66e6e8b3
142•AlexandrBel•19h ago•129 comments

Show HN: Lotas – Cursor for RStudio

https://www.lotas.ai/
67•jorgeoguerra•13h ago•26 comments
Open in hackernews

Nasa’s X-59 quiet supersonic aircraft begins taxi tests

https://www.nasa.gov/image-article/nasas-x-59-quiet-supersonic-aircraft-begins-taxi-tests/
64•rbanffy•2d ago

Comments

erikerikson•3h ago
Is any super sonic flight truly commercially viable/sustainable or is this just a skunkworks front?
epicureanideal•3h ago
Even if supersonic flight were 2.4x less fuel efficient than regular flights, based on Concorde vs other aircraft, if that translated into 2.4x ticket prices, a lot of people would still pay it.

$1000 vs $2400 to get to Europe in 6 hours instead of 12? A lot of people who just hate those long flights would pay for it, especially given that flights are only a portion of total vacation cost, together with hotels, etc.

Or for a flight inside the US, $1000 rather than $400, but to get from coast to coast in 3 hours rather than 6, may be very worth it for some people.

https://aviation.stackexchange.com/questions/107206/how-clos...

erikerikson•3h ago
The Concorde and what I understand to be it's lack of viability was exactly what I was thinking about - it motivated my question. What's different now?
pests•2h ago
I remember seeing something from Boom (now renamed?) which was an YN company years ago. I recall them developing some technology to solve the noise problem - somehow bouncing the sound off the atmosphere or similar IIRC? I do think its viability has increased over the years, just everyone has this default "it wont work" mindset because of the failure that was Concorde.
adgjlsfhk1•2h ago
the biggest difference is that composites and better computers probably make designing and manufacturing a good design a lot more feasible
bawolff•2h ago
They did fly them for 33 years. Even if it didn't work out in the end its not exactly an abject failure. I could imagine slightly better business plan, etc could make all the difference.

After all, concorde design started almost 75 years ago, surely we've learned a thing or two on how to design aircrafts with lower maintenance & operating costs in that time.

lazide•2h ago
It lost money consistently all the time.

The only reason it kept flying for 33 years is a vanity project for national airlines.

Which it was excellent at. Actually viable business? Not so much.

wat10000•2h ago
Concorde made an operating profit. Not a huge one (how could it, with fourteen planes flying), and it didn’t recoup development costs, but it was in the green once that initial cost was paid.
lazide•2h ago
Concorde never paid those initial costs, and had massive subsidies [https://www.nytimes.com/1981/01/09/business/france-extending...].

It was able to coast, eventually, but that’s some very fancy accounting.

“French Transport Minister Daniel Hoeffel, saying France ''will not and cannot abandon Concorde,'' signed a new agreement with Air France this week. The French Government, which with Britain had spent more than $2 billion developing the world's first supersonic passenger aircraft, will pay 90 percent of the plane's estimated operating losses for the next three years, compared with 70 percent in the past.

Under the new pact, the French taxpayer will contribute $66 million this year to the cost of Air France's champagne-and-caviar service linking Paris with New York, Washington, Caracas and Rio de Janeiro. In 1982, when losses are expected to decline slightly, the subsidy will be about $64 million, and in 1983, $59 million.”

wat10000•2h ago
Revenue exceeding ongoing costs after writing off development costs is not very fancy accounting.
lazide•1h ago
It wasn’t just dev costs.
epicureanideal•1h ago
In my opinion, there are worse ways for governments to subsidize aerospace and materials research and development, improve the connectivity between nations, generate national prestige, give people optimism for the future, and so on. 2 billion doesn't sound like a lot. It's a drop in the bucket compared to US military expenditures.

If California High Speed Rail loses a little bit of money, I won't be too upset by it. Unfortunately the up front costs are much higher, but at the same time, massive, massive infrastructure development is happening in California all along the length of the state, and the government is acquiring the rights to develop public transportation both now and into the future on that land. Again, there are worse ways to spend the money in my opinion.

lukan•17m ago
I am not sure if there are much worse ways, as this here means normal people subsidizing rich peoples luxory fast flights.

Bad for climate. Bad for the people below enjoying the noise. Bad for all the other things you could do with 2 billion. (A lot)

Only good for people who want jetting quickly around the World.

Amd it is good for material research, but that's the same argument for military development.

bawolff•1h ago
> It lost money consistently all the time.

> The only reason it kept flying for 33 years is a vanity project for national airlines.

Something that loses money, but not so much money that it can't be justified as a vanity project, seems like the sort of thing that could be profitable with tweaks and improvements.

Like it didn't work, but it was close enough to working that reasonable investors could say: second time will be the charm. Especially given how much more mature aeroplane technology is now vs the 1950s.

To put it in perspective, we first broke the sound barrier in 1947. People started designing the concorde in 1954 only 7 years later. It is now three quarters of a century later. Technology has improved a lot since then.

jauntywundrkind•1h ago
Worth mentioning that no one intends to make commercial jets go Concorde fast (mach 2) again, to my knowledge.

Boom is talking about "Boomless Cruise" being up to mach 1.3. they are trying to bounce the downward going sound waves off the atmosphere, bouncing them back up. It seems to be significantly speed dependent? https://boomsupersonic.com/press-release/boom-supersonic-ann...

hnlmorg•59m ago
The concord was heavily subsidised. Those ticket prices didn’t cover the cost of the service.

It was also far less pleasant a ride than even most economy class tickets for long hall flights. The space was more cramped and it was much louder inside the cabin. Personally, Id rather spend more for nicer seats on a longer flight than worse seats on a shorter flight. And a lot of people with money felt the same.

Design changes might help with the passenger comfort problem but when the plane is already running at a loss, it’s a hard sell asking for more R&D costs (which would be massive) to redevelop the concord.

panick21_•2h ago
If the overland regulation changed, there would very likely be Supersonic business jets after a decade or too.

Boom the only company trying to seriously do it, and they are facing a major uphill battle and will need many billions more.

And this NASA project doesn't really solve the problem, because its primary way to avoid the noise, is to reduce what would be cabin space for the already limited space. So that makes commercial viability even worse.

burnt-resistor•1h ago
14 CFR 91.817 was changed in the US, sort of, by executive order (depending on if this is legal) and by a proposed bill Supersonic Aviation Modernization Act (SAMA) H.R.3410

https://boomsupersonic.com/flyby/breaking-the-sound-barrier-...

supportengineer•2h ago
It will be sustainable by influencers alone
burnt-resistor•1h ago
X-59 appears to be the only known active research demonstrator as XB-1 was retired.

Boom claims to have completed their Overture facilities and plans to unveil a completed aircraft this year.[0]

0. https://en.wikipedia.org/wiki/Boom_Overture

kaptainscarlet•3h ago
They should use a Starship rather. Much quicker. The only hurdle would be the price.
wat10000•3h ago
And the dying in a fireball. Starship’s design seems fundamentally impossible to make safe.
somenameforme•3h ago
That's akin to saying that it seems fundamentally impossible to make landing rockets safe which, in fact, is exactly what Boeing/Lockheed were saying when SpaceX was first revolutionizing that space as well.
wat10000•3h ago
I’m not aware of any rocket landing safe enough for human use. NASA nixed the idea of propulsive landing for Dragon 2 for this reason. It’s extremely difficult to make safe, since just about any reasonable engine configuration means guaranteed death if a single engine fails at a critical moment. Compare with modern airliners where an engine can fail at any point in flight and the plane can land safely.

So yes, I agree, it is akin to saying that.

panick21_•2h ago
> NASA nixed the idea of propulsive landing for Dragon 2 for this reason.

That is completely false. First of all, NASA didn't nix it, they just didn't make it a priority as it had little value from their perspective.

The reason it was not done is that para-shouts have to be in the design anyway for abort situations, so that was fixed.

So for SpaceX, the question was to likely delay the program, and take on a whole lot of extra engineering work that they were not actually getting paid for, remember fixed price contract.

They were only going to work on it if they really thought they needed it for something like Red Dragon. And then they could still add it later.

And one of the primary reason SpaceX thought that its to hard, is that they landing feet would have to have gone threw the heat shield. That would have made the whole heat-shield design massively more complex.

wat10000•2h ago
Some dude who runs SpaceX seems to think the reason was safety. https://x.com/elonmusk/status/1104509345922838528
somenameforme•1h ago
He said it was the difficulty in proving the safety. There's an informative article here. [1]

NASA likes parachutes because they've always used parachutes. SpaceX likes retropulsive landings because Mars is their goal, and Mars' atmosphere isn't dense enough for parachutes. It's also safer for the crew in nominal operation and enables a much higher degree of rapid reuse, relative to NASA's traditional operation of taking a salt water bath in the ocean.

So they could go through the [very reasonable] extensive costs and testing involved in proving the safety of the retropulsive landings, or just go old school, strap a few parachutes on and work on getting crew to the ISS (which was the goal at the time). They chose the latter and with the plan of getting back to retropulsive landings later, which they also did. Parachutes remain the main landing mechanism for the Crew Dragon, but it now also has retropulsive landing capabilities to be used in case of a chute failure.

[1] - https://www.nasaspaceflight.com/2024/10/dragon-propulsive-la...

cnlevy•2h ago
Soyuz uses propulsive landing
numpad0•1h ago
And that's why astronauts preferred the Shuttle
0_____0•1h ago
what, the puff of impulse at the end of the parachute descent? I thinks it's a bit disingenuous to call that propulsive landing without context
consumer451•3h ago
> The only hurdle would be the price.

This is not the only hurdle. You can have an airport right next to a major city, with hundreds of arrivals and departures each day.

The same cannot be said for a Starship spaceport. Due to very loud launch, sonic booms on landing [0], and the danger of dropping a Starship onto populated areas, it would likely need to be offshore. That requires a boat, so now boarding a Starship involves thinking about sea states, taking a ferry ride on each side, and more.

Starship is super cool, but point to point Starship is a bit of a fantasy when you start to get to the nitty gritty.

[0] https://www.nasaspaceflight.com/2024/11/starships-sound-stud... (TL;DR: Super Heavy's sonic booms are 110 dB when standing 20 km from the booster.)

boguscoder•2h ago
The distance from front wheel to the end of the beak is impressive, its sooo engine-side heavy I guess. Curious if it requires a lot more tender landing procedure
NooneAtAll3•2h ago
Reminder that NASA's X-59 (which tests redirecting shockwave mostly upwards) is different from Boom Airspace's XB-1 (which tests flying slower than speed of sound down on the surface)
widforss•1h ago
It looks like the pilot barely sees out the window? Does it rely on cameras or does it föy by itself?
Tankenstein•1h ago
It relies on cameras.

Wikipedia: The flush cockpit means that the long and pointed nose-cone will obstruct all forward vision. The X-59 will use an enhanced flight vision system (EVS), consisting of a forward 4K camera with a 33° by 19° angle of view, which will compensate for the lack of forward visibility.

ivape•1h ago
What happens if the camera stops working?
burnt-resistor•1h ago
RUD.
phs318u•38m ago
Same thing that happens when flying through storms or clouds - fly by instrument.