These are some of my technology writings. I am a firm believer in the value of open source software and the culture of openness and cooperation that surrounds it. So most of my written work today is about open source rather than proprietary products. If you are looking for information about Microsoft products or anything Windows-based, then you are probably in the wrong place – though please feel free to look around anyway, if you have a few moments to spare.
JPEG (Joint Photographic Experts Group) format for images has served us well for nearly three decades. But is is essentially a 1990’s format. Today we have better ways of compressing images. The most popular currently is Google’s WEBP (Web Picture) Format. Many modern websites use WebP as its default format for uploaded images that it…
Seems that as London and the midlands – not to mention much of central Europe – sizzle in 40°C temperatures, our planet is to be hit with unusual weather of a different kind: a solar storm. Activity in the upper atmosphere of the sun, known as the ‘corona’, creates huge ‘solar flares’. These generate powerful…
A few folks have asked me what I use to keep our various networking and internet connectivity kit neat and tidy, yet reasonably service friendly. Well, I have to admit that it was rather a muddle for a many years. That was until I decided to make a simple multistorey stainless steel router rack. Moreover,…
“I want to move to Linux, so where do I start?” or variants thereof, is one of those frequently asked questions that often land in my in-box and on various fora. Such questions usually come from disgruntled Microsoft Windows users who are fed up with the cost, the privacy breaches, the malware infections and the…
For reasons I won’t bore you with now, my wife and I need to be rather careful regarding respiratory infections. I did my last model shoot 2020-03-08, shut everything down pro tem due to COVID. Amongst other projects, I used the time-out to undertake a fairly major refurbishment of my studio. I wanted to get…
Some interesting questions arose recently on a forum to which I belong. Members were comparing conventional broadcast TV with on-line video sites such as Youtube, and asking… What are people watching on YouTube? Are they watching new material ? Or are they watching old repeats that are be being shown in breach of copyright? Are…
One of the problems with modern life is the plethora of plug-in mains adaptors or “wall warts” as they call them on the other side of “The Pond”. Aside from the mess of wires, and the fact that often they are plugged into multi-gang power sockets an heaped on top of one another, building up…
I belong to several online photography fora. One of the questions that repeatedly pops up is “what image editing software do you use?” and “what alternatives are there to Adobe Photoshop/Lightroom?” In this article, I hope to demonstrate that high quality image processing is perfectly possible using FOSS (free open source software). I will also…
Social networking platforms come and go. Does anyone remember Myspace? or Bebo? Granted, Facebook has enjoyed a longer run than most. But today saw parent company Meta’s shares plummet by a staggering $226 billion. That’s the biggest one-day loss for any US company, ever. https://www.theguardian.com/technology/2022/feb/03/facebook-stock-shares-meta-mark-zuckerberg This comes on top of news last month that a…
I had a pretty grim time recently trying to fix a “Flatpak public key error” on Ubuntu 20.04 LTS. Well KDE Neon to be more precise, but it’s underlying operating system is Ubuntu. I had been attempting a “user” mode installation of an application via Flatpak with no success. I installed Flatpak in the normal…
I recently purchased a new 20 TB Ultrastar hard disk that UK supplier Scan Computers has on special offer. The Ultrastar range is descended from IBM/Hitachi’s DeskStar series, has a five year warranty and it is considered a high-end high-spec product, intended for heavy server and NAS use. It is a helium filled disk and…
“Is a smartphone a substitute for a proper camera?” was an interesting question, posed on a photographic forum to which I belong . It certainly got me thinking… Firstly, I think there is a certain element of “using the right tool for the job” here. An analogy if I may: one can (un)do most screws…
The GNU/Linux family of operating systems (e.g. Debian, Fedora, KDE Neon, Kubuntu, LinuxMint, Red Hat, Ubuntu, Xubuntu et al) are not permitted to use the UNIX trademark. Instead, they are described as “unix-like“. In fact, the “GNU” in GNU/Linux (c/w the “G” in GIMP) is a recursive acronym meaning GNU’s not Unix. In a nutshell,…
Here are a few snaps taken as we installed Weather Station Aercus Weathersleuth WH24 External Sensor Cluster. It really needed to be up as high as possible, yet reasonably easy to maintain. It also needed to be clear of obstructions. Well, as clear as our postage-stamp sized backyard will allow. The only viable place was…
Raspberry Ď€4 for ZoneMinder Part 1 – Raspberry Ď€4 8GB for Zoneminder Part 2 – Update: Raspberry Ď€4 8GB for Zoneminder Part 3 – Another update: Raspberry Ď€4 for Zoneminder (you are here) My Ď€4 Zoneminder has been running for just over two months. Overall I’m pretty happy with it. The main issue I had…
A lot of folks complaining that they have to go buy yet another set of USB leads, thanks to this newfangled USB C plug that’s come along. So what’s it all about and why do practically all new smartphones come equipped with it? Main reason is that it allows suitably equipped mobile devices to charge…
There are many ways to break an SD slot, but a surprisingly common one is to jam a tiny piece of plastic it it that has snapped off from a damaged SD card. The tiny plastic dividers between an CD card’s contacts can snap off. I’ve had quite several cards do that over the years….
Following on from my last article, this is Raspberry Ď€4 8GB for Zoneminder part 2. Now I have had time to set it up and test it for a while. Firstly, I decided to abandon the ARM64 version of Ubuntu on Ď€ because it seems slow and clunky. Basically it seems the current beta ARM64…
This is a overview of my adventures experimenting with a tiny Raspberry Ď€4 8GB for Zoneminder GNU/Linux-based security system. Raspberry Ď€4 for ZoneMinder Part 1 – Raspberry Ď€4 8GB for Zoneminder (you are here) Part 2 – Update: Raspberry Ď€4 8GB for Zoneminder Part 3 – Another update: Raspberry Ď€4 for Zoneminder Background I have…
Folks considering remote shooting via smartphone may wish to experiment with Pavel Khlebovich’s “IP Webcam”. Basically it’s an amazingly clever and full-featured app that allows you to control the camera(s) on your smartphone with a remote computer, using standard internet protocols. https://play.google.com/store/apps/details?id=com.pas.webcam I initially got into it because it plays nicely with Zoneminder. Thus any…
Seems it’s time to buy another laptop. My trusty old Thinkpad has seen better days. Worse, a company with somewhat ironic name of “PCSpecialist” made a total pig’s breakfast of repairing my new Clevo N141ZU I had purchased from it earlier. “PCSpecialist” also lost my hard disk, then denied having it. And what “PCSpecialist” laughingly…
I recently purchased an unlocked Chinese Ulefone Armor 3W ruggedised smartphone – c/w Mediatek chipset, 8-core 64-bit CPU, dual unlocked SIM slots, 256GiB TF slot and 10300mAH battery. I have quite a soft-spot for cheap generic Chinese phones. Of course, one has to choose the product quite carefully. You need to ensure your preferred device…
Some of my favourite computers require no PSU, no batteries, no RAM, no disks, no upgrades and they are 100% resistant to all known malware. No, I’m not talking about some newfangled Linux. I’m talking about good old fashioned sliderules. 🙂 Sliderules top to bottom… Top: Darmstadt 304. Despite its German-sounding name, this sliderule was…
Discussion came up on a forum to which I belong whether it is better to use NAS (network attached storage) or external hard drives for backup. My answer is why not use both? Effectively I have three NAS servers. One is a media server. The others are purely backup – though they can quickly be…
OK, so we are still in coronavirus lockdown here in the UK and I have spent the afternoon playing! 🙂 I saw the basic idea on a web forum on a photography site, and decided to look around my garage and see if there was any thing suitable to produce something similar. I also took…
