Sound-Reactive Light Saber Flips Allegiance Via Vowel Sounds
https://hackaday.com/2023/12/29/sound-reactive-light-saber-flips-allegiance-via-vowel-sounds/

Students [Berk Gokmen] and [Justin Green] developed an RP2040-based LED-illuminated lightsaber as a final project with a bit of a twist. It has two unusual sound-reactive modes: disco mode, and …read more (https://hackaday.com/2023/12/29/sound-reactive-light-saber-flips-allegiance-via-vowel-sounds/)

Peltier Mini Fridge for Class by Class
https://hackaday.com/2023/12/30/peltier-mini-fridge-for-class-by-class/

How do you keep a few sodas in your classroom cool? Well, if you are teacher [Ethan Hunt], you have your students design and build a solid-state mini refrigerator that …read more (https://hackaday.com/2023/12/30/peltier-mini-fridge-for-class-by-class/)

How to Build a Small Solar Power System
https://hackaday.com/2023/12/30/how-to-build-a-small-solar-power-system/

We live in an exciting time with respect to electrical power, one in which it has never been easier to break free from mains electricity, and low-frequency AC power in …read more (https://hackaday.com/2023/12/30/how-to-build-a-small-solar-power-system/)

Don’t Give Up
https://hackaday.com/2023/12/30/dont-give-up/

I’m at Chaos Communication Congress this weekend, and it’s like being surrounded by the brightest, most creative, and being honest, nerdiest crowd imaginable. And that’s super invigorating. But because of …read more (https://hackaday.com/2023/12/30/dont-give-up/)

Quivering Facehugger is All Geared Up
https://hackaday.com/2023/12/30/quivering-facehugger-is-all-geared-up/

[Jason Winfield] shared with us a video describing a project with a lot of personality: a mounted, lit, and quivering Alien facehugger triggered by motion. The end result is a …read more (https://hackaday.com/2023/12/30/quivering-facehugger-is-all-geared-up/)

37C3: You Think It’s Bad With Pluto? A History of the Planets
https://hackaday.com/2023/12/30/37c3-you-think-its-bad-with-pluto-a-history-of-the-planets/

Not every talk at the Chaos Communication Congress is about hacking computers. In this outstanding and educational talk, [Michael Büker] walks us through the history of our understanding of the …read more (https://hackaday.com/2023/12/30/37c3-you-think-its-bad-with-pluto-a-history-of-the-planets/)

37C3: When Apple Ditches Thuderbolt, Hack USB-C
https://hackaday.com/2023/12/30/37c3-when-apple-ditches-thuderbolt-hack-usb-c/