Among the many science toys that have fallen out of fashion since we started getting nervous around things like mercury, chlorinated hydrocarbons, and radiation is the spinthariscope, which let people …read more (https://hackaday.com/2025/11/17/watching-radioactive-decay-with-a-homemade-spinthariscope/)

Keebin’ with Kristina: the One with the Cipher-Capable Typewriter
https://hackaday.com/2025/11/17/keebin-with-kristina-the-one-with-the-cipher-capable-typewriter/

I must confess that my mouth froze in an O when I saw [Jeff]’s Typeframe PX-88 Portable Computing System, and I continue to stare in slack-jawed wonder as I find …read more (https://hackaday.com/2025/11/17/keebin-with-kristina-the-one-with-the-cipher-capable-typewriter/)

Meet The Shape That Cannot Pass Through Itself
https://hackaday.com/2025/11/17/meet-the-shape-that-cannot-pass-through-itself/

Can a shape pass through itself? That is to say, if one had two identical solids, would it be possible to orient one such that a hole could be cut …read more (https://hackaday.com/2025/11/17/meet-the-shape-that-cannot-pass-through-itself/)

Building A Smart Speaker Outside The Corporate Cloud
https://hackaday.com/2025/11/17/building-a-smart-speaker-outside-the-corporate-cloud/

If you’re not worried about corporate surveillance bots scraping your shopping list and manipulating you through marketing, you can buy any number of off-the-shelf smart speakers for your home. Alternatively, …read more (https://hackaday.com/2025/11/17/building-a-smart-speaker-outside-the-corporate-cloud/)

Binary Clock Also Monitors Weather
https://hackaday.com/2025/11/17/binary-clock-also-monitors-weather/

There are two things most of us want to know on a daily basis—the weather, and what time it is. [Guitarman9119] built a single device that can provide both pieces …read more (https://hackaday.com/2025/11/17/binary-clock-also-monitors-weather/)

Writing Type-Safe Generics in C
https://hackaday.com/2025/11/17/writing-type-safe-generics-in-c/

The fun part about a programming language like C is that although the language doesn’t directly support many features including object-oriented programming and generics, there’s nothing that’s keeping you from …read more (https://hackaday.com/2025/11/17/writing-type-safe-generics-in-c/)