The Cheap Yellow Display (CYD) is an ESP32 development board that’s been making the rounds for a while now, thanks to its value and versatility. For around $10 USD, you …read more (https://hackaday.com/2025/01/07/more-things-to-do-with-your-cheap-yellow-display/)

Cleaning Up Bhopal: the World’s Worst Industrial Disaster
https://hackaday.com/2025/01/07/cleaning-up-bhopal-the-worlds-worst-industrial-disaster/

https://commons.wikimedia.org/wiki/File:Bhopal-Union_Carbide_2.jpg
" data-image-caption="Deteriorating section of the UCIL plant near Bhopal, India. (Credit: Luca Frediani, Wikimedia)
" data-medium-file="https://hackaday.com/wp-content/uploads/2025/01/Bhopal-Union_Carbide_2.jpg?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2025/01/Bhopal-Union_Carbide_2.jpg?w=800">Forty years ago, on the night of Sunday 2 December of 1984, people in the city of Bhopal and surrounding communities were settling in for what seemed like yet another …read more (https://hackaday.com/2025/01/07/cleaning-up-bhopal-the-worlds-worst-industrial-disaster/)

The Helicone: Toy or Mathematical Oddity?
https://hackaday.com/2025/01/07/the-helicone-toy-or-mathematical-oddity/

We always enjoy videos from the [Mathologer], but we especially liked the recent video on the Helicone, a toy with a surprising connection to mathematics. The toy is cool all …read more (https://hackaday.com/2025/01/07/the-helicone-toy-or-mathematical-oddity/)

Gaze Upon This Omni-directional Treadmill’s Clever LEGO Construction
https://hackaday.com/2025/01/07/gaze-upon-this-omni-directional-treadmills-clever-lego-construction/

Want to see some wildly skillful LEGO construction? Check out [Banana Gear Studios]’ omni-directional treadmill which showcases not only how such a thing works, but demonstrates some pretty impressive problem …read more (https://hackaday.com/2025/01/07/gaze-upon-this-omni-directional-treadmills-clever-lego-construction/)

Bending Light, Bending Time: A DIY Polarizer Clock
https://hackaday.com/2025/01/07/bending-light-bending-time-a-diy-polarizer-clock/

Imagine a clock where the colors aren’t from LEDs but a physics phenomenon – polarization. That’s just what [Mosivers], a physicist and electronics enthusiast, has done with the Polarizer Clock. …read more (https://hackaday.com/2025/01/07/bending-light-bending-time-a-diy-polarizer-clock/)

Regular (Expression) Chess
https://hackaday.com/2025/01/07/regular-expression-chess/

[Nicholas Carlini] found some extra time on his hands over the holiday, so he decide to do something with “entirely no purpose.” The result: 84,688 regular expressions that can play …read more (https://hackaday.com/2025/01/07/regular-expression-chess/)

Toot-B-Gone, With The FartMaster 3000
https://hackaday.com/2025/01/07/toot-b-gone-with-the-fartmaster-3000/

Face it, we’ve all been there, in a crowded workshop building something, and horror of horrors, things are going to get a little… windy. Do you try to drop it …read more (https://hackaday.com/2025/01/07/toot-b-gone-with-the-fartmaster-3000/)