Well, whaddya know? It seems that E. coli, the bane of Romaine and spinach everywhere, has at least one practical use. Researchers at Harvard have created a kind of 3D-printable …read more (https://hackaday.com/2021/12/27/its-printable-its-programmable-its-e-coli/)

Whipping Together A Little Ray Tracer Racer
https://hackaday.com/2021/12/27/whipping-together-a-little-ray-tracer-racer/

When you hear raytracing, you might think of complex dark algorithms that to stare too long at their source code invites the beginning of madness. And you’re technically not far …read more (https://hackaday.com/2021/12/27/whipping-together-a-little-ray-tracer-racer/)

Taste the Television: TTTV
https://hackaday.com/2021/12/27/taste-the-television-tttv/

Associate Professor [Homei Miyashita] from Meiji University’s School of Science and Technology in Tokyo has developed a new technology for reproducing taste on a television or monitor, a system called Taste the …read more (https://hackaday.com/2021/12/27/taste-the-television-tttv/)

Single Bit Computer from Vacuum Tubes
https://hackaday.com/2021/12/27/single-bit-computer-from-vacuum-tubes/

Image from project Hackaday.io gallery
" data-image-caption="" data-medium-file="https://hackaday.com/wp-content/uploads/2021/12/bit1-feature.jpg?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2021/12/bit1-feature.jpg?w=800">Culminating a year-long project, [Usagi Electric] aka [David] has just wrapped up his single-bit vacuum tube computer. It is based on the Motorola MC14500 1-bit industrial controller, but since [David] changed …read more (https://hackaday.com/2021/12/27/single-bit-computer-from-vacuum-tubes/)

Voice Command Made Mostly Easy
https://hackaday.com/2021/12/27/voice-command-made-mostly-easy/

Speech commands are all the rage on everything from digital assistants to cars. Adding it to your own projects is a lot of work, right? Maybe not. [Electronoobs] shows a …read more (https://hackaday.com/2021/12/27/voice-command-made-mostly-easy/)

Custom Christmas Light Controller Blocks Blinks
https://hackaday.com/2021/12/27/custom-christmas-light-controller-blocks-blinks/

Finding that his recently purchased LED Christmas lights defaulted to an annoying blinking pattern that took a ridiculous seven button presses to disable each time they were powered up, [Matthew …read more (https://hackaday.com/2021/12/27/custom-christmas-light-controller-blocks-blinks/)

Turing Ring is Compact
https://hackaday.com/2021/12/28/turing-ring-is-compact/

One of the problems with a classic Turing machine is the tape must be infinitely long. [Mark’s] Turing Ring still doesn’t have an infinite tape, but it does make it …read more (https://hackaday.com/2021/12/28/turing-ring-is-compact/)