The latest blog posts to take off on Hacker News. 4,419 posts.
A study of over 60,000 people who were followed for as long as two decades found that people’s perceptions about their level of activity have a more significant effect on their longevity than the...
A practical introduction to the programming language Scheme
The only real valuable thing is intuition. – Albert Einstein A year ago I got rid of my scale, a simple act that turned out to be the catalyst for a year’s worth of quiet introspection and experimentation in removing quantification from my life. A year later I’m quantifiably more ignorant about myself than I have been…
A blog post on reverse engineering and customizing the firmware of a cheap fitness tracker bracelet.
Over on GitHub, David Yu has an interesting performance benchmark for function calls of various Foreign Function Interfaces ( FFI ):
Over the last five months, hundreds of patches were committed to the source tree as a result of this work. Dozens of bugs were fixed, among which a good number of actual, remotely-triggerable vulnerabilities.
This post is actually about artificial intelligence, and argues a position that many AI researchers will disagree with. Specifically, it arg...
Explaining the basic ideas behind reinforcement learning. In particular, Markov Decision Process, Bellman equation, Value iteration and Policy Iteration algorithms, policy iteration through linear algebra methods. It includes full working code written in Python.
Why do some English plurals end in "en" instead of "s"?
by Andrew Boyd Today, we meet in the middle. The University of Houston's College of Engineering presents this series about the machines that make our civilization run, and the people whose ingenuity created them.
In this series of posts, I am going to create a clone of the classic arcade game, space invaders, in C++ using only a few dependencies. In this post I will set up a window with an OpenGL 3.3 context u
The Visitor Pattern is one of the most mis-understood of the classic design patterns. While it has a reputation as a slightly roundabout technique for doing simple processing on simple trees, it is actually an advanced tool for a specific use case: flexible, streaming, zero-overhead processing of complex data…
A global array of telescopes, including APEX, reveals the finest details so far on event horizon scales in the centre of our Galaxy
You likely know I like the ZFS filesystem a lot. ZFS stores the files in B-trees in a similar fashion as InnoDB stores data.
Thanks for the featured writeup Hackaday! Make sure to check out the comments over there as well. Looks like Hackernoon picked it up as well, make sure to check in with the comments there too. It would be great if you could also head over to Hacker News, give an upvote, and join in the comments there. Let's get this…
We have a new vehicle, a Honda Odyssey Elite customised for my wheelchair, and for me to drive with hand controls.
The tech industry, especially the security industry, seems outrageously overwhelming to newcomers and even as an intermediate “InfoSec Pro” there seems to be an overwhelming number of paths and topics one can focus on. The problem most of us, especially newcomers, encounter is that we don’t know what to focus on. Even…
The end of semester is here and, as I grade our students semestral works, I get to use CMakeLists of dubious quality. After seeing the same errors repeat over and over again, I decided to write a short tutorial towards writing simple CMakeLists.
The past month has seen one blockbuster revelation after another about how our mobile phone and broadband providers have been leaking highly sensitive customer information, including real-time location data and customer account details. In the wake of these consumer privacy debacles, many are left wondering who’s…
When you read up on the DisplayPort connector in the VESA specification, it will show that both the source and the sink are supposed to provide power at 3.3V+-10% and 500mA on the DP_PWR pin, pin 20, of the connector.
A look at a Wikipedia editor's long-running campaign to discredit anti-war campaigners and journalists
There is a lot to say about parallelism in PostgreSQL. We have come a long way since I wrote my first post on this topic ( Parallel Sequen...
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