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Apple Vision Pro: What About Comic Books?

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Obviously the Vision Pro isn’t the first VR/AR/whatever device, but it’s the first one that’s got...
Obviously the Vision Pro isn’t the first VR/AR/whatever device, but it’s the first one that’s got enough resolution to prevent me from getting pissed off as soon as I stick it to my face. And while there have already been reams of articles published about other aspects of using the Vision Pro, I haven’t seen anybody...
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General purpose MCUs built in to LEDs emulate candle flicker

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Years ago I spent some time analyzing Candle-Flicker LEDs that contain an integrated circuit to mimic...
Years ago I spent some time analyzing Candle-Flicker LEDs that contain an integrated circuit to mimic the flickering nature of real candles. Artificial candles have evolved quite a bit since then, now including magnetically actuated “flames” an even better candle-emulation. However, at the low end, there are still s...
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Speeding Slows You Down (By a Lot)

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I often drive between Boston and New Haven. While on the road, I find myself pondering...
I often drive between Boston and New Haven. While on the road, I find myself pondering a simple question: If my only goal is to arrive as fast as possible, how fast should I drive? Ignoring things like ethics (or fuel efficiency), the solution would seem to be simple. Drive as fast as possible. But there’s a catch: ...
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Tiny UPS for Tiny NAS

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Re-implementing an old DOS game in C++ 17

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Back in 2016, I started a side project to reverse engineer the game Duke Nukem II...
Back in 2016, I started a side project to reverse engineer the game Duke Nukem II and build an open source reimplementation of its engine from scratch – called Rigel Engine (Check it out on GitHub). Now, more than 2 1/2 years later, my version is complete enough to allow playing the entire shareware episode of the o...
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Enphase Envoy-S data scraping (2016)

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White space does matter in C23

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Usually in C identifiers are not directly followed by strings. But when U prefixed literals were...
Usually in C identifiers are not directly followed by strings. But when U prefixed literals were introduced in C. there still were some rare clashes with existing code. This happened were a macro U that expanded to a string was used to add some sort of leading character sequence to a string. Prior, this usage was no...
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Modern Misconceptions About Medieval Warfare

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A Song of Ice and Fire and other “realistic” medieval fantasy works have been trying to...
A Song of Ice and Fire and other “realistic” medieval fantasy works have been trying to challenge the set-in conceptions of Middle Ages and provide a more realistic take on the era, one that tries to remove the lenses of noble prejudices and show how things truly were. Problem is, they have failed. Instead of removi...
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Using Xrandr for Multi Monitor Setups (plus some useful scripts) (2021)

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If you’re a window manager user, one of the things you might be looking for is...
If you’re a window manager user, one of the things you might be looking for is a quick and easy way of setting up multiple monitors. There’s a few GUI programs that achieve that goal, but they’re rather unnecessary when you can just use xrandr to achieve that goal. ## Prerequisite Just make sure xrandr is installed....
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A vision for the alleviation of water scarcity in the US Southwest

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Just a couple of hours drive east of Los Angeles lies the Imperial Valley, home to...
Just a couple of hours drive east of Los Angeles lies the Imperial Valley, home to Palm Springs, some of the most productive agriculture on Earth, and the Salton Sea. Together with Los Angeles, this area uses over five million acre-feet (MAF) of water from the Colorado River every year, a river whose flow continues ...
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Is nuclear power a solution to climate change?

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Amid discussion of anthropogenic climate change there has been a steady stream of advocacy for nuclear...
Amid discussion of anthropogenic climate change there has been a steady stream of advocacy for nuclear power to provide low carbon electricity. Several of my exceptionally clever friends describe themselves as being on Team Nuclear, so I wanted to understand a bit about the argument and how the future might play out...
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Franz Morat KG TV-computersystem 6800

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The two cultures of mathematics and biology

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I’m a (50%) professor of mathematics and (50%) professor of molecular & cell biology at UC...
I’m a (50%) professor of mathematics and (50%) professor of molecular & cell biology at UC Berkeley. There have been plenty of days when I have spent the working hours with biologists and then gone off at night with some mathematicians. I mean that literally. I have had, of course, intimate friends among both biolog...
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Video playback on low-end MS-DOS machines

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Playing video on MS-DOS… it kinda was a thing with things such as the GRASP/GLPro and...
Playing video on MS-DOS… it kinda was a thing with things such as the GRASP/GLPro and FLIC formats back in the day. But not on REALLY low-end machines, such as 8088s and CGA. Until the demo 8088 Corruption was released in 2004. And then its successor 8088 Domination in 2014, which I already discussed earlier. It can...
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Adding Vision to the SunFounder PiCar-X

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Last time, we programmed a SunFounder PiCar-X to behave similar to a Roomba, to basically move...
Last time, we programmed a SunFounder PiCar-X to behave similar to a Roomba, to basically move around a room following an algorithm to go all over the place. This was a first step and had a few limitations. The main one is that it could easily get stuck, since if there is nothing in front of the ultrasonic sensor, t...
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Back to Basics

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I originally learned to program in grade 10, where my highschool had a DEC LA36 DECwriter...
I originally learned to program in grade 10, where my highschool had a DEC LA36 DECwriter terminal connected through a 300 baud modem to a local college’s DEC PDP-11 running the RSTS-11 operating system. We wrote programs in the built-in BASIC programming language. This was 1976 back before structured programming to...
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Semantic versioning is a mistake

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When I first heard about Semantic Versioning, or SemVer, I thought it was one of those...
When I first heard about Semantic Versioning, or SemVer, I thought it was one of those ideas that’s so obviously right that we were all going to benefit from someone having just codified it and written it down. In a nutshell, it’s the idea that your software should be versioned with a three-part string in the format...
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The ghost of a colonial road on the eastern side of the Chrysler Building

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There’s no finer example of a New York City Art Deco skyscraper than the Chrysler Building,...
There’s no finer example of a New York City Art Deco skyscraper than the Chrysler Building, which gleams with strength and grace 77 stories over 42nd Street and Lexington Avenue. The Chrysler Building in 1931, rising above 42nd Street This icon of Machine Age Manhattan was completed in record time between 1928 and 1...
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