Liquid nitrogen isn’t exactly an everyday material, but it’s acquired conveniently enough to be used in extreme overclocking experiments, classroom demonstrations, chemistry and physics experiments, and a number of other niche applications. Liquid oxygen, by contrast, is dangerous enough that it’s only really used in rocket engines. Nevertheless, [Electron Impressions] made some of his own, […]
For many decades humankind has entertained the notion that we can maybe tweak the Earth’s atmosphere or biosphere in such a way that we can for example undo the harms of climate change, or otherwise affect the climate for our own benefit. This often involves spreading certain substances in parts of the atmosphere in order […]
[Yeckel] recently put the finishing touches on an ambitious implementation of a simple D-STAR (Digital Smart Technologies for Amateur Radio) transceiver using some very accessible and affordable hardware. The project is D-StarBeacon, and [Yeckel] shows it working on a LilyGO TTGO T-Beam, an ESP32-based development board that includes a SX1278 radio module and GPS receiver. […]
There aren’t many speed records that remain unbroken for the greater part of a century, but one of them is that of the fastest steam locomotive. As with so many such things, there’s a bit of controversy and more than one contender, but the one in the record books is the A4 Pacific, Mallard. In […]
Everyone loves Wago connectors for how versatile and effective they are for quickly and securely connecting conductors, but it can be tempting to buy a bag of the significantly cheaper knock-offs. The reason why this can be a terrible idea is explained by [Big Clive] who tore down a few bags of them to ogle […]
[Nagy Krisztián] had an Intel 286 CPU, only… There was no motherboard to install it in. Perhaps not wanting the processor to be lonely, [Nagy] built a simulated system to bring the chip back to life. Okay, 68 pins does look like a lot when you arrange them like that. The concept is simple enough. […]
We’ll start this week off with a bit of controversy from Linux Land. Anyone who’s ever used the sudo command knows that you don’t see any kind of visual feedback while entering your password. This was intended as a security feature, as it was believed that an on-screen indicator of how many characters had been […]
Bottom of the cast-iron radiator gaming PC during plumbing. (Credit: Billet Labs, YouTube) Water-cooled PCs generally have in common that there’s a radiator somewhere in the loop, yet nobody said that you can’t build the PCB into the radiator. Something like a genuine Victorian-era cast-iron radiator, for example. For the folk over at [Billet Labs], […]