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I Stored a Website in a Favicon

https://www.timwehrle.de/blog/i-stored-a-website-in-a-favicon/
95•theanonymousone•2h ago•29 comments

Data Compression Explained (2012)

https://mattmahoney.net/dc/dce.html
106•mtdewcmu•3d ago•9 comments

Where to Find the Colors Your Screen Can't Show You

https://moultano.wordpress.com/2026/06/19/where-to-find-the-colors-your-screen-cant-show-you/
73•moultano•4h ago•15 comments

There are no instances in ATProto

https://overreacted.io/there-are-no-instances-in-atproto/
428•danabramov•17h ago•223 comments

The discovery that changed how scientists think about memory

https://www.ibm.com/think/news/discovery-changed-how-scientists-think-about-memory-kavli-prize
45•rbanffy•2d ago•9 comments

Can you see three trees?

https://www.not-ship.com/can-you-see-three-trees/
88•Pamar•2d ago•24 comments

Surprising economics of load-balanced systems

https://brooker.co.za/blog/2020/08/06/erlang.html
106•KraftyOne•12h ago•24 comments

Hyundai buys Boston Dynamics

https://startupfortune.com/hyundai-takes-full-control-of-boston-dynamics-as-softbank-exits-for-32...
802•ck2•16h ago•350 comments

How many of the 170k English words do you know?

https://vocabowl-870366514258.us-west1.run.app/
349•abnry•18h ago•442 comments

Norway imposes near ban on AI in elementary school

https://www.reuters.com/technology/norway-imposes-near-ban-ai-elementary-school-2026-06-19/
638•ilreb•16h ago•436 comments

Satellite reveals immense scale of GPS signal tampering

https://www.space.com/space-exploration/satellites/its-quite-a-bit-more-than-we-expected-satellit...
63•y1n0•4h ago•18 comments

Project Valhalla, Explained: How a Decade of Work Arrives in JDK 28

https://www.jvm-weekly.com/p/project-valhalla-explained-how-a
588•philonoist•1d ago•361 comments

Bobby Prince, composer for Doom, Wolfenstein 3D, and Duke Nukem 3D, has died

https://www.legacy.com/legacy/robert-bobby-prince-lll
350•pgrote•12h ago•39 comments

GPT-5.5 hallucinates 3x more than MIT-licensed GLM-5.2

https://arrowtsx.dev/bigger-models/
115•oshrimpton•16h ago•23 comments

Soccer Arcade Games Through the Years

https://arcadeheroes.com/2026/06/13/world-cup-2026-soccer-arcade/
11•speckx•3d ago•1 comments

A Perceptron in Age of Empires II

https://adewynter.github.io/notes/aoe2-circuits
66•EvgeniyZh•2d ago•30 comments

Egyptian Fractions (2006)

https://blog.plover.com/math/egyptian-fractions.html
90•luu•4d ago•7 comments

A 1969 camera operators' strike created Upstairs Downstairs multiverse

https://ironicsans.ghost.io/the-color-strike/
11•ohjeez•3d ago•0 comments

Designing a backyard deck for my house

https://blog.cosmin.cloud/posts/diy-deck.html
9•spycraft•3h ago•2 comments

AURpocalypse now: a look at the recent AUR attacks

https://lwn.net/SubscriberLink/1077619/f7b07c5489fdd43a/
75•jwilk•15h ago•46 comments

John Jumper to join Anthropic

https://twitter.com/JohnJumperSci/status/2068001285173834106
123•artninja1988•14h ago•93 comments

Court Records Should Be Free

https://www.eff.org/deeplinks/2026/06/court-records-should-be-free
357•hn_acker•14h ago•75 comments

Ask HN: Will programmers write more efficient code during the memory shortage?

92•amichail•9h ago•158 comments

Zen and the Art of Machine Learning Research

https://blog.jxmo.io/p/zen-and-the-art-of-machine-learning
256•jxmorris12•4d ago•92 comments

Building a robotics research setup that lives next to my desk

https://dfdxlabs.com/research/2026/robotics-setup/
145•mplappert•1d ago•51 comments

Big Banana Car

https://bigbananacar.com/
146•Bender•14h ago•75 comments

Telescope Ranchers

https://kottke.org/26/06/telescope-ranchers
121•bookofjoe•3d ago•46 comments

Digital Printing of Arabic: explaining the problem

https://digitalorientalist.com/2017/08/21/digital-printing-of-arabic-explaining-the-problem/
50•a_t48•3d ago•17 comments

Show HN: Metiq: a real time 3D globe for 100 public datasets

https://metiq.space
117•rakeda•3d ago•32 comments

Hey, n00b, we didn't hire you to complete tasks

https://newsletter.kentbeck.com/p/hey-n00b-we-didnt-hire-you-to-complete
165•rrvsh•8h ago•84 comments
Open in hackernews

Can you see three trees?

https://www.not-ship.com/can-you-see-three-trees/
88•Pamar•2d ago

Comments

helloplanets•1h ago
Esbo / Espoo is an odd one out, of those four. The three others look like the olden European cities you'd expect, but you'll have a hard time getting around in Espoo without a car. There are plenty of beautiful neighborhoods in Espoo, but it's basically a large spread of separate suburbs rather than a city in the way the rest are. The actual "Espoo Center" is not very green and flowery either, and it's not really thought of as an actual city center.
stevekemp•36m ago
Helsinki has a lot of parks, and also housing companies tend to have trees in their gardens, along with trees alongside many of the bigger roads. But even so it's a reasonably dense city.

Espoo is much more spread out, and the areas between them are all full of trees and greenery. So I very much agree with you, I've visited Espoo a few times but without a car I wouldn't want to live there.

mapontosevenths•1h ago
‘Beneath the pavement, the beach!’
jamiecurle•7m ago
and three years later, the beech has Ganoderma due to root compaction!
rendaw•1h ago
Some photos would be really awesome. What does a view in an area that passes the test look like compared to one that doesn't? 3 trees doesn't sound like a lot, I don't have a good mental concept of this.
isoprophlex•53m ago
indeed, i can see more than three trees, but the tree cover is probably... 1%?
jamiecurle•37m ago
Here you go. Hot off the press for you. My house which passes the test.

https://jamiecurle.com/posts/trees-3-30-300

Northumberland, UK.

ErroneousBosh•1h ago
No data for NW Scotland, presumably because 140mph winds for four weeks of the year (in the local language we call that "January") is incompatible with large trees.
psychoslave•1h ago
Looks great, are they interactive maps showing these data?
luuundonjk•1h ago
I was walking in central London and something felt wrong. I couldn't quite tell what though, but I had this constant feeling of unease.

It took me a few days to understand - there are no trees in central London (the City).

Sure, you have a small/big park here and there, but no random trees on side walks. It's literally a (beautiful) concrete/glass wasteland.

Note: I only walked a few of the main streets, I'm sure I'm exaggerating a bit, but it's quite noticeable compared with other cities after you realize it. And there are random trees in other areas, outside City of London.

mickeyp•1h ago
What? London is one of the greenest cities in the world.
luuundonjk•1h ago
I'm talking about trees on sidewalks and streets, not about parks.
pm215•31m ago
The city government tracks data on public realm trees, and has a nice map based visualization of it: https://www.london.gov.uk/programmes-and-strategies/environm... and if you zoom in you'll see that many of these are streetside trees.

Personally I have always felt that most Japanese cities are very devoid of urban greenery compared to UK towns and cities.

jamiecurle•1h ago
I'm not sure what parts of London you were in, but there's many trees in London. There's even a specific species for it - the London plane (Platanus × hispanica)

If you're in the very new, constantly rebuilt, concrete jungle that is the very small part of the city, then OK, greenery is going to be hard to spot. Particularly as they tend to nearly always choose the wrong species to plant and aftercare is an afterthought. But your assessment is factually incorrect.

See for yourself. Go to Google maps, drop a good few street view randomly around the city and you'll see that more often than not you'll see trees.

Also, I have a networks in arboriculture who work in the city and they're never short on work.

I'm not doubting your experience of unease or a concrete/glass wasteland (that's yours and not mine to question) but the facts don't support the statement of no random trees on pavements (side walks).

I live in the North, but I'm often in London.

lmf4lol•1h ago
One thing that I really really like about living in Amsterdam, is that we have trees and plants everwhere. Also, for 2 years now, city stopped cutting most of the plant growth in parks and on the side of roads. Its so beautiful green and colourful now and insects are having a great time. I counted this year already 6 different sorts of humblebees in my garden.
spacedcowboy•1h ago
Hah, looking out my window, I can see about 300 trees, and it’d be more if it weren’t for all the trees in the way. The house is next to a park that’s designed for walking in, with lots of twisty pathways between trees and bushes to give you the feeling that you’re not in a manufactured space.
ImaCake•49m ago
That first map seems to map quite closely to koppen climate zones across the continent. Its hard to say whether the climate is decisive here because climate is a big influencer of urban design. However, its interesting that in Australia its the two Mediterranean climate cities (Perth and Adelaide) which frequently get labelled as worse for tree cover compared to the sub tropical east coast cities.
taffydavid•25m ago
I'm happy to report I can see much more than 3 out every window.
paulmooreparks•17m ago
Singapore here, checking all the boxes. 200m from a neighborhood park with many trees, and ~700m from a GARGANTUAN park, Jurong Lake Gardens, over 4 km in length with many times that in pathways through gardens and around a lake.
luuundonjk•44m ago
open Google maps at Monument station, find a tree in the area. all the streets in that region of London (let's say 1 sq km) are quite narrow, I would guess there just is not enough space for street trees.
jamiecurle•16m ago
When I drop a pin to Monument station I see a sign, so I spin the view around. In canon street I see two trees (no leaves - winter). They're hard to see as they're behind a black cab.

Clicking once into Canon street towards those trees presents me with the trees. They're now in leaf and look like Sorbus intermedia "swedish whitebeam" and the key id is the margin on the leaf and the green fruits. Photo was taken July/August as prior to that they're in the flowering phase (beautiful to see btw).

When I spin the view down Canon street I see three mature trees in full leaf on pavements / sidewalks.

As I said in another reply, I'm an arborist and I'm hardwired to see trees and perhaps I subconsciously avoid areas that have none, so maybe that's bias on my part.

thebrid•40m ago
I'd echo the gp's thoughts. There are parts of the City and the West End that are basically devoid of trees.

My biggest bugbear in London is the number of developments that have a "token tree" with one lonely tree in one corner, often doing quite poorly, presumably included to check some item on a planning consent checklist.

Of course, London has many green spaces and on the whole has plenty of trees, it's just they're quite unevenly distributed.

jamiecurle•34m ago
Maybe I'm just in different places. Normally I'm walking from Kings Cross down Grey street and around Covent Garden type areas.

I'm nearly always on foot. Perhaps it's just because I'm also an arborist and I'm hard wired to see trees and avoid places that don't have them?

The token tree thing is a problem. Daisy Barrington was part of webinar on the topic as part of the Arboricultural Associations webinar series [0]. Rarely do the species planted get based on local ecology and or have a solid aftercare plan. They're normally chosen for immediate aesthetic look (Paper / Himalayan birch being the most common) rather than how they'd exist over time.

In short birch being a pioneer species is short lived (80 years), grows fast towards light and dislikes being pruned. Where as oaks, norway maple, London planes ( some of which are "climax species") etc live for longer, grow slower and respond to pruning better, support local ecology better and some don't mind the pollution of an urban environment so much.

[0]: https://youtu.be/Kql22dZlq6o?t=2407

jamiecurle•9m ago
Maybe we're both right and wrong at the same time.

Here's a map of the canopy data.

https://apps.london.gov.uk/public-realm-trees/explore