~hackernews | Bookmarks (11955)

Show HN: Using aerospace projects to teach maths [video]

youtube.com

education
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The Hidden Complexity of Scaling WebSockets

composehq.com

With the rising demand for sync engines and real-time feature, WebSockets have become a critical component...
With the rising demand for sync engines and real-time feature, WebSockets have become a critical component for modern applications. At Compose, WebSockets form the backbone of our service, powering our backend SDKs that enable developers to deliver low-latency interactive applications with just backend code.But, sca...
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A simplified analysis of the Chernobyl accident (2021)

epj-n.org

EPJ Nuclear Sci. Technol. 7, 1 (2021)https://doi.org/10.1051/epjn/2020021Regular Article A simplified analysis of the Chernobyl accident Bertrand...
EPJ Nuclear Sci. Technol. 7, 1 (2021)https://doi.org/10.1051/epjn/2020021Regular Article A simplified analysis of the Chernobyl accident Bertrand Mercier1*, Di Yang2, Ziyue Zhuang2 and Jiajie Liang2 1 CEA/INSTN, Gif sur Yvette 91191, France 2 Institut Franco-Chinois de l'Energie Nucléaire, Sun Yat-sen University, 51...

epj n
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Cloud Virtualization: Red Hat, AWS Firecracker, and Ubicloud internals

ubicloud.com

January 24, 2025 · 8 min readOzgun ErdoganCo-founder / Co-CEOVMs are much harder to understand today...
January 24, 2025 · 8 min readOzgun ErdoganCo-founder / Co-CEOVMs are much harder to understand today than they were back in 2009. Linux provides many building blocks for virtualization, but only a select few kernel engineers know how to stitch them together.Further, finding a good design document that describes VM t...
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A phishing attack involving g.co, Google's URL shortener

github.com
2
A Very Chicago Gamble

bitsaboutmoney.com

This column doesn’t offer investment advice, as I am not a registered investment advisor. This is...
This column doesn’t offer investment advice, as I am not a registered investment advisor. This is not merely a mandatory disclaimer; this is a warning. We will discuss some specific securities below that I am not merely incapable of recommending.Finance performs a strange alchemy, teleporting value through time and ...
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Making my life easier with GADTs

acatalepsie.fr
1
Dead Internet Theory and the Falsification of PhysicsForums

hallofdreams.org

An exposé no one will read, about the widespread falsification of user posts in PhysicsForums, a...
An exposé no one will read, about the widespread falsification of user posts in PhysicsForums, a scientific community founded in 2001. This is a microcosm of the death of the human-written Internet.What Internet Will Look Like in the Futurecripes does anybody remember Google People– qntm, August 21st, 2019Does anybo...
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C++26: Pack Indexing

sandordargo.com

C++11 introduced parameter packs to provide a safer way to pass an undefined number of parameters...
C++11 introduced parameter packs to provide a safer way to pass an undefined number of parameters to functions instead of relying on variadic functions.While packs are a useful feature, and since C++17 it’s so easy to use them in fold expressions, extracting a specific element of a pack is somewhat cumbersome.You ei...
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Life expectancy/years of life lost in adults w ADHD in UK: matched cohort study

cambridge.org

Attention-deficit and hyperactivity disorder (ADHD) is a neurodevelopmental condition diagnosed based on ‘a persistent pattern (at...
Attention-deficit and hyperactivity disorder (ADHD) is a neurodevelopmental condition diagnosed based on ‘a persistent pattern (at least 6 months) of inattention and/or hyperactivity-impulsivity that has a direct negative impact on academic, occupational or social functioning’.1 It was first included in the DSM in 1...
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Show HN: Snap Scope – Visualize Lens Focal Length Distribution from EXIF Data

shj.rip
1
Urban legend: I think there is a world market for maybe five computers

geekhistory.com

An internet search of the phrase "I think there is a world market for maybe five...
An internet search of the phrase "I think there is a world market for maybe five computers" will produce dozens of websites claiming those were the words of IBM Chairman Thomas Watson.The quote is often listed as one of the biggest epic fail statements of all times. We searched the net trying to find the source of t...

business computers legends myths
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How is [my new] Type Predicate Generator different?

github.com
1
Anatomy of a Formal Proof

ams.org

Conversation It has been a long day and you are making your way through a paper...
Conversation It has been a long day and you are making your way through a paper related to your work. You suddenly come across the following remark: “…since $x$ and $y$ are eigenvectors of $f$ with distinct eigenvalues, they are linearly independent.” Wait—how does the proof go? You should really know this. Here $x$...
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Neanderthals' blood type may help explain their demise, new study finds

livescience.com

When modern humans journeyed out of Africa, a rapid evolution in their red blood cells may...
When modern humans journeyed out of Africa, a rapid evolution in their red blood cells may have helped them survive — but it may have also led to the eventual disappearance of Neanderthals, a new study finds.By sequencing the genomes of dozens of people who lived between 120,000 and 20,000 years ago, researchers fou...
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Derveni Papyrus

wikipedia.org

Oldest surviving European manuscript (c. 340 BC) The Derveni papyrus is an Ancient Greek papyrus roll...
Oldest surviving European manuscript (c. 340 BC) The Derveni papyrus is an Ancient Greek papyrus roll that was discovered in 1962 at the archaeological site of Derveni, near Thessaloniki, in Central Macedonia. A philosophical treatise, the text is an allegorical commentary on an Orphic poem, a theogony concerning th...
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Introducing Ads in Threads

facebook.com

ads advertising on threads brand and safety business goals testing threads
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Alibaba, Datadog, and Quesma Join Forces on Go Compile-Time Instrumentation

opentelemetry.io

Standards are only useful if they’re widely adopted, and adoption is only effective if the available...
Standards are only useful if they’re widely adopted, and adoption is only effective if the available tooling facilitates it. I imagine SI units would not have been too popular when they were introduced if you had to build your own scales to weigh things in Kilograms!If you use OpenTelemetry in Go, you’ll be familiar...
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Eki Bright – The Case for DIY Routing

twocentstudios.com
1
Tele-present wind – David Bowen

dwbowen.com
1
Converge (YC S23) Is Hiring Founding Engineer #2 in NYC

gem.com
1
Subpixel Snake

youtube.com

people & blogs
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Gaza checkpoint contractor is Wyoming shell company

substack.com

A Google Maps capture of 115 W Snow King Ave., Jackson, Wyoming in August 2024. The...
A Google Maps capture of 115 W Snow King Ave., Jackson, Wyoming in August 2024. The address is shared by both Safe Reach Solutions, LLC and Two Ocean Trust, LLC.January 24, 2025, 10:30 a.m.: Added proof that Silver Pheasant PTC was registered to the same address as Two Ocean Trust and Safe Reach Solutions but with a...
1
Data Branching for Batch Job Systems

isaacjordan.me

Data is being increasingly treated like code has been treated for decades. For many use-cases it...
Data is being increasingly treated like code has been treated for decades. For many use-cases it isn't enough to know "What is the current value?" but also "What was the value previously?", "Who last changed the value?", and "Why did they change the value?".Having a history for data provides data security benefits b...
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