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7.1 Earthquake in Japan

https://www.data.jma.go.jp/multi/quake/quake_detail.html?eventID=20260728163528&lang=en
532•krembo•7h ago•100 comments

New HIV vaccine shows unprecedented success in preclinical study

https://www.lji.org/news-events/news/post/new-hiv-vaccine-shows-unprecedented-success-in-preclini...
166•codebyaditya•1h ago•57 comments

Show HN: tale.fyi, we deserve a home for fiction

https://tale.fyi/@sam/announcing-tale-fyi-read-or-listen-to-an-entire-book-from-a-single-link
40•samuelcole•1h ago•24 comments

Kimi Linear: An Expressive, Efficient Attention Architecture

https://arxiv.org/abs/2510.26692
77•ronfriedhaber•3h ago•15 comments

Show HN: Formally verified 3D CSG: Trust 93 lines spec, not 1000 lines AI code

https://github.com/schildep/verified-3d-mesh-intersection
51•permute•1h ago•17 comments

Solving Fermat: Andrew Wiles

https://www.pbs.org/wgbh/nova/proof/wiles.html
22•1970-01-01•18h ago•3 comments

Show HN: Ctrlb-decompose: Strip the noise from logs before sending to LLMs

https://github.com/ctrlb-hq/ctrlb-decompose
33•ruhani_grover•1h ago•7 comments

Google's Beyond Zero: Enterprise Security for the AI Era

https://spawn-queue.acm.org/doi/10.1145/3819083
74•jordigg•4h ago•40 comments

DMARC Has Been Public Since 2012. 68.4% of Domains Still Don't Enforce It

https://ciphercue.com/blog/dmarc-enforcement-gap-rua-fragmentation-2026
56•adulion•4h ago•38 comments

Our position on open-weights models

https://www.anthropic.com/news/position-open-weights-models
1067•surprisetalk•16h ago•1537 comments

How to Survive Boiling Water

https://taxa.substack.com/p/how-to-survive-boiling-water
207•cainxinth•4d ago•30 comments

What AI developers could learn from Charles Bukowski?

https://galjot.si/what-ai-developers-could-learn-from-charles-bukowski
28•sedovsek•1h ago•21 comments

About the security content of macOS Tahoe 26.6

https://support.apple.com/en-us/128067
150•andor•5h ago•94 comments

Fast Remediation Is the New Trust Model (JFrog and OpenAI Zero-Day Findings)

https://jfrog.com/blog/jfrog-and-openai-collaboration-on-zero-day-security-findings/
26•882542F3884314B•2h ago•10 comments

Show HN: Scala Tutorials – interactive Scala 3 lessons in the browser

https://scalatutorials.com
39•eranation•3d ago•6 comments

A $500 RL fine-tune of a 9B open model beat frontier models on catalog review

https://fermisense.com/when-machines-take-the-wheel/
261•ilreb•12h ago•87 comments

Mondragon Corporation – a federation of co-operatives

https://en.wikipedia.org/wiki/Mondragon_Corporation
94•brnt•2h ago•12 comments

Usenet Archive Toolkit – process Usenet messages into a searchable archive

https://github.com/wolfpld/usenetarchive
15•bilegeek•4h ago•0 comments

Benchmarking Opus 5 on SlopCodeBench

https://github.com/humanlayer/advanced-context-engineering-for-coding-agents/blob/main/benchmarki...
352•dhorthy•16h ago•97 comments

Dolmenwood: Fantasy RPG built around the acclaimed Old-School Essentials rules

https://necroticgnome.com/collections/dolmenwood
18•doener•3d ago•7 comments

The Origins of Modern Mathematics in Russia

https://valeman.medium.com/the-origins-of-modern-mathematics-in-russia-from-peter-the-great-to-th...
11•ibobev•3d ago•0 comments

Ask HN: Crooked Timber showed showed me a virus captcha, What now?

9•Jgoauh•23m ago•5 comments

Ars Astronomica – English translations of rare Hebrew and Latin astronomy texts

https://arsastronomica.com/
94•sweisman•9h ago•28 comments

Vehicle Motion Cues

https://support.apple.com/guide/iphone/iphone-comfortably-riding-a-vehicle-iph55564cb22/ios
170•Austin_Conlon•13h ago•86 comments

Watching Go's new garbage collector move through the heap

https://theconsensus.dev/p/2026/07/19/observing-gos-garbage-collector-old-and-new.html
251•matheusmoreira•3d ago•36 comments

Great Mobile Apps Aren't Built Around Features

https://geekyants.com/case-studies/nowmatch-next-gen-social-and-dating-app-development
3•steve_7890•1h ago•0 comments

PyTorch: A Reference Language

https://docs.pytorch.org/devlogs/compiler/2026-07-25-pytorch-a-reference-language/
60•matt_d•10h ago•5 comments

TWC Classics

https://twcclassics.com/
30•stefanpie•5d ago•3 comments

Show HN: Segue – Save context in one AI, load it in another by a short handle

https://segue.ai/
10•csaguiar•2h ago•5 comments

Kimi K3 Now Available via Telnyx Inference API

https://telnyx.com/release-notes/kimi-k3-telnyx-inference
119•fionaattelnyx•16h ago•69 comments
Open in hackernews

Over 150k Flights: Airlines Just Flew the Busiest Day in Recorded History

https://simpleflying.com/over-150000-flights-airlines-busiest-day-recorded-history/
30•cainxinth•1h ago

Comments

addaon•1h ago
This feels like one of those cases where it’s safe to say “history” instead of “recorded history.”
amelius•55m ago
Even history is not safe if you consider the entire universe.
dudefeliciano•17m ago
Technically history only refers to the parts of the past for which we have written records.
sandworm101•32m ago
I dont think they are refering to that. I think it is a reference to all the non-recorded flights happening every day. Maybe there was a day last week with more flying, but it wasnt all recorded.
rob74•29m ago
History, as recorded by Flightradar24: "a whopping grand total of 153,359 commercial flights were tracked between 00:00 UTC and 23:59 UTC on July 23, 2026" So I would say it's justified to qualify it. Not sure how Flightradar24's coverage has evolved over time, but it could theoretically be that there were more flights at some point before 2020, but some of them weren't tracked?
datakan•1h ago
With numbers like that I guess they have no reason to make flights more comfortable or convenient. I just did a cross country flight and back 2 weeks ago and I'm still recovering from it. I really hate flying now.
collabs•53m ago
> With numbers like that I guess they have no reason to make flights more comfortable or convenient. I just did a cross country flight and back 2 weeks ago and I'm still recovering from it. I really hate flying now.

My expectations are low and yet airlines somehow manage to fail. I made the mistake of booking a flight with frontier and they "delayed" the flight several times before eventually canceling the whole flight.

richwater•38m ago
The real cost of air travel continues to go down as customers really only discriminate on price. Airlines have tried before to compete on other facets but everything failed.

The best you can do is look at specific carriers, and more importantly specifically what aircraft you'll be flying on.

A cross country flight in economy is going to be more comfortable in a Delta A220 than a United 737 Max. However, because of hubs and lack of competition many non-mega metros don't really have a large amount of choice.

datakan•15m ago
Maybe, I don't know. Sprit Airlines closing up abruptly like it did may refute your premise. They were the cheapest of the cheap, people hated them and now they are gone.
richwater•5m ago
As the country exited COVID, mainline carriers began to really push their basic and barebones fares which directly took away business from ULCCs like Spirit. Spirit never really leveraged their credit cards effectively to help subsidize the cost of seats.

ULCCs thrive when they can maximize their time in the sky across as many different flights as possible. Filling up the day with many different flights allows them to rake in checked-baggage fees, reserved seat fees etc more often than longer mainline carrier flights. All of this went out the window when a large portion of their A320 fleet was grounded because of the P&W engine issues. This absolutely killed their utilization percentage.

Spirit died way more because of business management than it did because customers didn't choose on price.

bestouff•56m ago
Yes let's continue burning fuel. It's fine.
iso1631•55m ago
We're screwed and powerless so activate ostrich mode is one way to deal with things, at least on a personal level. Probably better for your health
K0nserv•46m ago
Flying is a bit unique in that there aren't really viable alternatives. It also accounts for a fairly small portion of emissions. Land transport (cars and trucks), power generation, and heating are where the big wins exist with viable alternatives.
megablast•40m ago
What?? In Europe there are lots of viable alternatives. Same as Asia!!
FredFS456•37m ago
Depends on where you're flying to and from in Asia, and how far.
jjice•36m ago
For transport you're right. I think the parent your referring to was specifically saying there's no alternative way to power a plane. That's my assumption at least.
RankingMember
richwater•44m ago
The new Airbus Project Sunrise aircraft also set the record for longest passenger aircraft flight
RankingMember•22m ago
Just looked that up. Good lord, they need to amend the universal declaration of human rights to include flying people 24 hours straight in coach as a violation.
richwater•3m ago
It will surely be a tough sell. It will be very expensive (comparatively), and most travelers won't even want to do it. There's a reason Ethiad is so successful on these kinds of flights because their hub creates a natural stopping point halfway.
Wildgoose•38m ago
This seems like madness to me. A fully loaded 747 has around 140,000 litres of energy-dense jet fuel containing between 2.2 and 2.9 GWh worth of energy - or around two hours output of a typical power station.

This level of profligacy is simply not sustainable.

noosphr•19m ago
Yes, we need to shut down the power plants. People lived without electricity for millions of years, they can always get back to it. /s
RankingMember•17m ago
To me, the parent's statement was a comment on the enormity of aircraft fuel used.
twister2920•17m ago
not really the same thing
RankingMember•19m ago
Parkinson's Law needs a moderator in the form of agreed-upon limits. How we get there, I have no idea, but it's well-overdue.
kbart•9m ago
Modern aviation is an amazing engineering feat (all the environmental issues aside). With such numbers it means that "one in a million" failure occurs roughly evey week, but the fact that we have so little major incidents demonstrates how well aicrafts are engineered.
kilroy123•8m ago
I was up in the air flying that day.

It didn't seem busy at all. Everything was on time, quick, and smooth on both sides. My partner and I commented on how smooth everything went.

•
25m ago
I'd like to see an attempt at modern air cruises on giant zeppelins.
lbriner•19m ago
Then the plane takes longer than the train!
phoghed•16m ago
A price I’m more than willing to pay to for my Final Fantasy IX airship
RankingMember•15m ago
Exactly what I had in mind
RankingMember•14m ago
Yeah this would be more making the airship part of the experience rather than a means to an end.
K0nserv•22m ago
I was saying a bit of both. megablast is correct that there are alternatives, but I'd maybe quibble with "viable". For example you can get from Stockholm to Umeå with a 1 hour flight or a 6-8 hour train journey, is the train a viable alternative? For aviation there aren't alternative fuels and on many journeys even the alternative transport options aren't in the same ballpark.
sdoering•9m ago
Calling it a “1 hour flight” is a bit misleading when comparing transport options. The relevant number is door-to-door travel time.

Once you include getting out of Stockholm to the airport, security, boarding, the flight itself, possible baggage collection, and the trip into Umeå, I would be surprised if the total were much below 4 hours. Comparable German domestic flights such as Hamburg–Munich usually took me around 4–4.5 hours in practice in the past when traveling for work before the pandemic.

That makes the train a 6–8 hour alternative to a roughly 4-hour flight journey. Whether that is viable depends on the traveller, but it is certainly more competitive than “1 hour versus 8 hours” suggests.

I admit that for me, living about an hour north of the Hamburg main station but only 15 minutes from the airport, the plance for a business trip in Munich can still be a viable (albeit seldom taken) option. More often than not, if time permits, I take the train, work on the train. But as said - there still are situations, that make flying such a distance viable (to me).

I just wanted to point out, that it is not as clear cut as 1 hour vs. 6 to 8 hours.

VBprogrammer•2m ago
In the UK I could get from Central London to Central Glasgow in 4.5 hours on the train. The same trip on a flight, it takes an hour to get the airport (assuming it's not one of the budget airlines pretending Essex or Bedfordshire is London...), I need to be there 2 hours before (maybe less is you are brave and Security isn't messed up) the flight takes an hour and then I have to get out of the airport and find my way from Paisley back to Glasgow Central.

Of course there are a lot of variables, if instead I leave from my house the aircraft would actually be faster, mostly due to the extra time it takes to get to Central London and from Waterloo to Euston.

In reality we usually drive in about 6-8 hours because, as a family of 4 traveling, it's considerably cheaper even before you take into account having transport on the other end.

bluGill•14m ago
For short trips. Most plane trips are at a distance where there isn't a viable alternative. Sure there are some nice trains that can handle the more common trips, but airplanes really shine for much longer trips.
tonyedgecombe•21m ago
It only represents a small portion of emissions because so few people fly. For the people that do fly it represents a large portion of their emissions.

It’s also the activity least likely to be decarbonised.

Of course there are alternatives, I haven’t flown on a plane since 2001.

chneu•1m ago
There are plenty of alternatives. Most importantly: traveling locally.

Air travel is a very recent modern invention(1960s, at least for everyday folk) and people act like flying around the world is a right.

Modern capitalism is an excess machine. Air travel is a great example. Travel and tourism are seen as "musts" by people nowadays. It's insane how destructive and unnecessary it is.

buellerbueller•29m ago
I guess if you are really serious about saving the planet from airplanes, you could start a network of similar-feeling folks and begin randomly bombing enough flights to terrify the world into not flying.

Give yourself an edgy name, like the Children of Kali, to make it stick.

Honestly, if you think the stakes are that high then you implicate yourself with anything but fully committed action. Anything less, and you just seem preachy and screechy.

PS: It's a book called The Ministry of the Future. Try reading once in a while. Whoosh.

adrianN•24m ago
That is a terrible way to get the necessary support for climate action and would be actively harmful to the cause.

This argument has been made so often and in so much detail that I’m surprised to still see people suggest climate terrorism in, presumably, good faith.

fusslo•15m ago
I recently read Days of Rage about the various groups committing political violence during the 60s and 70s. Weatherman, Black Panthers, Black Liberation Army, etc.

I don't know if there was really a 'message' more than just reporting what 'happened'. But, I have to say I came away with the idea that that kind of political violence is futile. Non-violent political action seemed to have MUCH more beneficial action than any bomb. (of course it wasn't as clear-cut between non-violent groups and revolutionary groups at the time)

Maybe thats only because I just read the ONE book.

bluGill•10m ago
The general impression from talking to people who live then (I was a baby in the 1970s so I knew/know a fair number). The violent groups were looked on as weird or kids who needed to grow up - they were ignored for the most part other than cheering on what the police did.

There is a reason Rosa Parks was chosen to start the bus boycott - she comes off as "just like me" to the average person. Thus when she couldn't take it anymore the rest of America didn't write her off.

ortusdux•19m ago
Here is a good list of 'fuel per seat (in mpg)' numbers for various airplane configurations and flight durations: https://en.wikipedia.org/wiki/Fuel_economy_in_aircraft#Examp...

The total average across the industry in 2018 was between 67 and 81 mpg. Modern planes are in the 100-120mpg range.

elil17•15m ago
The issue is that we are enabling people to travel long distances too cheaply.
9cb14c1ec0•11m ago
Yes, let's make things more expensive, cause we experts know best. That poor guy that needs to attend a family funeral, he's a loser that should stay home. Inflation for the Win!
dudefeliciano•3m ago
What about short distances? Why is it cheaper to fly Berlin-Stuttgart than to take a train? it makes absoutely no sense.
dudefeliciano•4m ago
and according to the article the last record was 200k planes per day on june 29 2025, while july 23rd had more than 280k - so while efficiency may be going up (how many of those 280k planes are in the modern 100-120mpg range?) total flights are as well...total emissions are steadily increasing.
Findecanor•12m ago
I think the way airline tickets are priced is a big factor, and needs to change.

It is often cheaper to take a connecting flight to an airport and flying from there than to start from that airport. That disincentivises taking a low-carbon-emission train to the airport and experiencing more of (and spending more in) the city near the airport than just its airport.

Often, for longer flights, the more stops, the cheaper the total ticket gets. Planes consume more fuel at take-off and landing, making the the carbon footprint increase with these cheaper tickets. And the more you fly, the more points you get that could pay for more flights.

It should be the other way around: air-travel carbon tax should be progressive. You should pay more each time if you fly more often. That would reduce the number of flights in total while still allowing everyone to take that "trip of a life-time".