If you have ever played around with lenses, you’ll know that a convex lens can focus an image onto a target. It can be as simple as focusing the sun …read more (https://hackaday.com/2025/06/20/all-you-need-to-know-about-photographic-lenses/)
Building Diode and Diode-Transistor Logic Gates
https://hackaday.com/2025/06/20/building-diode-and-diode-transistor-logic-gates/
https://hackaday.com/2025/06/20/building-diode-and-diode-transistor-logic-gates/
The fun part about logic gates is that there are so many ways to make them, with each approach having its own advantages and disadvantages. Although these days transistor-transistor logic …read more (https://hackaday.com/2025/06/20/building-diode-and-diode-transistor-logic-gates/)
PVA Filament: Not Always What it Seems
https://hackaday.com/2025/06/20/pva-filament-not-always-what-it-seems/
https://hackaday.com/2025/06/20/pva-filament-not-always-what-it-seems/
PVA filament is an interesting filament type, for the reason that while it can be printed with any FDM printer, it supposedly readily dissolves in water, which is also the …read more (https://hackaday.com/2025/06/20/pva-filament-not-always-what-it-seems/)
The last time we checked in with the ELIZA archeology project, they had unearthed the earliest known copy of the code for the infamous computer psychiatrist written in MAD-SLIP. After …read more (https://hackaday.com/2025/06/20/eliza-reanimated/)
The Most Satisfying Way To Commit
https://hackaday.com/2025/06/20/the-most-satisfying-way-to-commit/
https://hackaday.com/2025/06/20/the-most-satisfying-way-to-commit/
Have you ever finished up a bit of code and thought that typing “git push” in a terminal is just not a satisfying finish? So did [penumbriel], so he built …read more (https://hackaday.com/2025/06/20/the-most-satisfying-way-to-commit/)
If Your Kernel Development is a Little Rusty
https://hackaday.com/2025/06/21/if-your-kernel-development-is-a-little-rusty/
https://hackaday.com/2025/06/21/if-your-kernel-development-is-a-little-rusty/
To paraphrase an old joke: How do you know if someone is a Rust developer? Don’t worry, they’ll tell you. There is a move to put Rust everywhere, even in …read more (https://hackaday.com/2025/06/21/if-your-kernel-development-is-a-little-rusty/)
Tiny Tellurium Orbits Atop a Pencil
https://hackaday.com/2025/06/21/tiny-tellurium-orbits-atop-a-pencil/
https://hackaday.com/2025/06/21/tiny-tellurium-orbits-atop-a-pencil/
We like scale models here, but how small can you shrink the very large? If you’re [Frans], it’s pretty small indeed: his Micro Tellurium fits the orbit of the Earth …read more (https://hackaday.com/2025/06/21/tiny-tellurium-orbits-atop-a-pencil/)