Kritik sah

Modern consoles bring joy to televisions around the globe, but they’re fundamentally mass-produced totems to gaming excellence. That wasn’t good enough for [Matt], who decided that his PlayStation 5 needed a total case makeover . (Video, embedded below.) The material of choice is brass. Capable of being polished to a mirror-like shine while being readily workable and available, it’s perfect for making a PlayStation 5 look just a little more  deluxe.  While [Matt] has worked with brass before, replicating the PS5’s case in the metal pushed him to learn new skills. The main center divider was easy enough, with paper used to create a cutting template to match the form which bends through 90 degrees. The real challenge, however, was the side panels. With complex curves across several axes, manually bending metal plates to match the shape proved impossible. Instead, a custom wooden and plaster jig was made, onto which brass plates could be clamped to match the curves. A blowtorch...

It’s always fun to look over aerial and satellite maps of places we know, seeing a perspective different from our usual ground level view. We lose that context when it’s a place we don’t know by heart. Such as, say, Mars. So [Matthew Earl] sought to give Perseverance rover’s landing video some context by projecting onto orbital imagery from ESA’s Mars Express. The resulting video (embedded below the break) is a fun watch alongside the technical writeup Reprojecting the Perseverance landing footage onto satellite imagery . Some telemetry of rover position and orientation were transmitted live during the landing process , with the rest recorded and downloaded later. Surprisingly, none of that information was used for this project, which was based entirely on video pixels. This makes the results even more impressive and the techniques more widely applicable to other projects. The foundational piece is SIFT ( Scale Invariant Feature Transform ), which is one of many tools in the OpenCV t...

Church organs may be mechanically complicated and super old-school, but they share something in common with the earliest computer sound chips. In theory, and largely in practice, they produce very simple waveforms. The primary reason that church organs seem so full and rich compared to your old Commodore 64 is that they have the benefit of a whole church’s worth of reverb to fatten out the sound. [Linus] demonstrates this with the Sixtyforgan. The Sixtyforgan is a Commodore 64 hooked up to a spring reverb tank. By running the relatively basic waveforms from the Commodore’s SID chip through this reverb, it’s possible to generate sounds that are eerily similar to those you might hear at your local Sunday service. While we won’t expect chiptune luminaries like [chipzel] to start busting out songs of praise at events like Square Sounds , it’s kind of awesome to think of the composers of antiquity rocking out to some mad Game Boy jams way back when. It’s a great demonstration of the Comm...

We use electricity to move things with the help of motors and magnets all the time. But if you have enough voltage, you can move things with voltage alone. As [James] found out, though, it works best if your objects — ping pong balls, in his case — are conductive . He wanted to add a Van de Graaff generator to add to his “great ball machine” which already has some cool ways to move ping pong balls. However, to get the electrostatic motion, [James] had to resort to spraying the balls with RF shielding spray. We liked that he did some experiments to see how the balls would work before spending a lot of time 3D printing the final project. We did wonder, though, if there were cheaper options to make the balls conductive such as graphite or conductive ink. The end result is a 3D printed low-energy ping pong rail gun, more or less. The design is pretty clever and you might find some ideas even if you don’t want to actually accelerate ping pong balls. An Arduino, of course, controls the ...

from Packet Storm https://ift.tt/3tYrVTe

Red Hat Security Advisory 2021-1004-01 - This release of Red Hat build of Quarkus 1.11.6 includes security updates, bug fixes, and enhancements. For more information, see the release notes page listed in the References section. Issues addressed include code execution, information leakage, and traversal vulnerabilities. from Packet Storm https://ift.tt/31qqOzI

Health Center Patient Record Management System version 1.0 suffers from a persistent cross site scripting vulnerability. from Packet Storm https://ift.tt/31x18S1