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How I because the 2nd-most prolific contributor to docs.rs

DISCLAIMER: This was not my idea - I picked it up from Jane Nicholson at an XTC event, who was introduced to it by Jess Gilbert (who in turn, I am told, got it from someone else). This post is just explaining why I believe it can be a useful exercise, not any truly original...

This page collects links to raw and live sources on how well the planet, including its vital infrastructure, is doing right now, potentially visualised attractively. But the key thing is, we want Real Data, from the most direct sources. Sources are expected to be realtime or at least updated frequently. Mere estimates of things based on questionable inputs are explicitly not welcome, no matter how pretty their output. Please submit new links or fixes to @bert_hu_bert or bert@hubertnet.

By bert hubert / bert@hubertnet.nl This post is an excerpt of a far longer post on Galileo, its structures and the cause of the outage. Here we’ll only focus on the outage - the potential underlying reasons behind it are described in the full article. Since the week-long outage in July I’ve been fascinated by Galileo and, together with a wonderful crew of developers, experts and receiver operators, have learned so much about what I now know are called ‘Global Navigation Satellite Systems’ or GNSS.

By bert hubert / bert@hubertnet.nl In this post I want to document some mostly non-technical aspects of the EU’s Galileo Satellite Navigation Network. I will also share some observations on how things are going, and perhaps how they could be improved. NOTE: A shorter version of this article, focusing only on the July outage, can be found here. Since the week-long outage in July I’ve been fascinated by Galileo and, together with a wonderful crew of developers, experts and receiver operators, have learned so much about what I now know are called ‘Global Navigation Satellite Systems’ or GNSS.

Our latest book, written together with my partner Mars, plus friends Tim and Jon, is out! It covers everything you need to know to do practical AI with Swift (hence its title: Practical Artificial Intelligence with Swift, clever right?).

You can buy it from all sorts of book shops, as well as read it on O’Reilly’s Online Learning platform.

I took some time to study how NBA Jam arcade cabinet worked. Here is what I learned.

The Netherlands is struggling with a shortage of primary school teachers, which as a nice side effect means that I get ample opportunities to do technical propaganda in the name of education. This is a quick writeup of a lesson on how GPS (or in general, satellite based navigation) works. I’d like to thank Jasper Vos and Michel Dingen of OBS De Notenkraker for the opportunity & the very useful feedback on the lessons!

Note: For context, please see this article on the Economist Job. I also want to thank Job Snijders who was of great help in writing this article. How the Internet Leaks A few weeks ago large swathes of the internet stopped working around the world. The cause was quickly found: a computer networking mistake over at a specialty metals company based in Pittsburgh, Pennsylvania. Earlier that month, a similar accident took down payment terminals in The Netherlands because of a misconfiguration in a Swiss datacenter which rerouted key parts of the internet to China.

Note: For context, please see this article on the Economist Job. This is a condensed and updated version of my earlier post On the pan-genome. Towards a multi-stranded genome Given that the completion of the human genome project was announced in 2003, one could be forgiven for thinking the kinks would have been worked out by now. It turns out however that as published today, the human DNA reference sequence is neither complete nor a good description of mankind.

Over the holiday, I ran into this job advertisement from The Economist: The Economist is looking for a new Science and Technology correspondent. Knowledge of the field, an ability to write informatively, succinctly and wittily, and an insatiable curiosity are more important attributes than prior journalistic experience. Please send a CV, a brief letter introducing yourself, and an article of 600 words suitable for publication to xxxx@economist.com. The closing date for applications is August 23rd.

By bert hubert bert@hubertnet.nl / @bert_hu_bert / https://galmon.eu/ Late July 2019, Galileo, “the European GPS” suffered from a week long outage. I’m a proud European, and I think we should have our own well-functioning navigation system, so I tried to figure out what was going on. Surely someone was monitoring this stuff in public? I come from the internet where we monitor all the things, if someone asked for it or not.

It has been an issue for a long time to run Docker images on multiple architectures. I remember the first time I got the idea to install Docker on my Raspberry Pi and I realized quickly that what I was trying to do would not work. The issue of course was that I was trying to use an AMD64 compiled Docker image on a ARM 32 bit CPU. Anyone who works with any lower level languages would call me an idiot for realizing this sooner than later. I would agree with them. Docker just seems to work like magic, running on most machines without any issue, like running Linux containers on Windows. One thing that has not been easy though is building Docker images on one type of CPU and running them on another.

Hi everyone, As noted previously I’ve gone all in on GNSS monitoring. GNSS is the generic term for GPS, Galileo, GLONASS and BeiDou satellites. Eventually a big blog post will come out, but meanwhile you can see the results on galmon.eu. A few days ago, an unknown GLONASS satellite started transmitting signals on slot R26 and I tried to figure out which one it was. By definition, GNSS satellites broadcast their own very precise location & speed, which makes it possible to match up their orbit to published “TLEs”, which document where objects in space are.

A description of the technique for generating guaranteed-soluble Minesweeper grids in my puzzle game Mines. Written in response to an email query.

This is a fun hobby project based around a couple of Raspberry Pi. The goal was to run container based workloads across all of computers. The project has evolved into a Kubernetes cluster with persistent storage and a VPN tunnel to allow for serving of public websites.