Everyone generally knows about piston and rotary engines, with many a flamewar having been waged over the pros and cons of each design. The “correct” answer is thus to combine …read more (https://hackaday.com/2025/12/28/the-birotary-engine-explained/)
39C3: Hardware, and the Hard Bit
https://hackaday.com/2025/12/29/39c3-hardware-and-the-hard-bit/
https://hackaday.com/2025/12/29/39c3-hardware-and-the-hard-bit/
The 39th annual Chaos Communication Congress (39C3) is underway, and it kicked off with a talk that will resonate deeply with folks in the Hackaday universe. [Kliment] gave an impassioned invitation …read more (https://hackaday.com/2025/12/29/39c3-hardware-and-the-hard-bit/)
Only Known Copy of UNIX V4 Recovered From Tape
https://hackaday.com/2025/12/29/only-known-copy-of-unix-v4-recovered-from-tape/
https://hackaday.com/2025/12/29/only-known-copy-of-unix-v4-recovered-from-tape/
UNIX version 4 is quite special on account of being the first UNIX to be written in C instead of PDP-11 ASM, but it was also considered to have been …read more (https://hackaday.com/2025/12/29/only-known-copy-of-unix-v4-recovered-from-tape/)
How Wind Nearly Took Down Boulder NTP
https://hackaday.com/2025/12/29/how-wind-nearly-took-down-boulder-ntp/
https://hackaday.com/2025/12/29/how-wind-nearly-took-down-boulder-ntp/
NTP is one of the most interesting and important, but all to forgotten, protocols that makes the internet tick. Accurate clock synchronization is required for everything ranging from cryptography to …read more (https://hackaday.com/2025/12/29/how-wind-nearly-took-down-boulder-ntp/)
39C3: Hacking Washing Machines
https://hackaday.com/2025/12/29/39c3-hacking-washing-machines/
https://hackaday.com/2025/12/29/39c3-hacking-washing-machines/
Many of us have them, few of us really hack on them: well, here we’re talking about large home appliances. [Severin von Wnuck-Lipinski] and [Hajo Noerenberg] were both working on …read more (https://hackaday.com/2025/12/29/39c3-hacking-washing-machines/)
Keebin’ with Kristina: the One with the Keyboard-Mouse, Again
https://hackaday.com/2025/12/29/keebin-with-kristina-the-one-with-the-keyboard-mouse-again/
https://hackaday.com/2025/12/29/keebin-with-kristina-the-one-with-the-keyboard-mouse-again/
The astute among you may remember an earlier version of this Russian beauty, the Lapa, which I featured last year around this time. Creator [lemosbor] claims that the worry was …read more (https://hackaday.com/2025/12/29/keebin-with-kristina-the-one-with-the-keyboard-mouse-again/)
Different Algorithms Sort Christmas Lights
https://hackaday.com/2025/12/29/different-algorithms-sort-christmas-lights/
https://hackaday.com/2025/12/29/different-algorithms-sort-christmas-lights/
Sorting algorithms are a common exercise for new programmers, and for good reason: they introduce many programming fundamentals at once, including loops and conditionals, arrays and lists, comparisons, algorithmic complexity, …read more (https://hackaday.com/2025/12/29/different-algorithms-sort-christmas-lights/)