Acoustic Levitation Gets Insects Ready For Their Close-Up
https://hackaday.com/2025/03/22/acoustic-levitation-gets-insects-ready-for-their-close-up/

The average Hackaday reader is likely at least familiar with acoustic levitation — a technique by which carefully arranged ultrasonic transducers can be used to suspend an object in the …read more (https://hackaday.com/2025/03/22/acoustic-levitation-gets-insects-ready-for-their-close-up/)

Card Radios Remembered
https://hackaday.com/2025/03/22/card-radios-remembered/

We know how [Techmoan] feels. In the 1980s we had a bewildering array of oddball gadgets and exciting new tech. But as kids we didn’t have money to buy a …read more (https://hackaday.com/2025/03/22/card-radios-remembered/)

Generative Art Machine Does it One Euro at a Time
https://hackaday.com/2025/03/22/generative-art-machine-does-it-one-euro-at-a-time/

[Niklas Roy] obviously had a great time building this generative art cabinet that puts you in the role of the curator – ever-changing images show on the screen, but it’s …read more (https://hackaday.com/2025/03/22/generative-art-machine-does-it-one-euro-at-a-time/)

Twisting Magnetism to Control Electron Flow
https://hackaday.com/2025/03/22/twisting-magnetism-to-control-electron-flow/

If you ever wished electrons would just behave, this one’s for you. A team from Tohoku, Osaka, and Manchester Universities has cracked open an interesting phenomenon in the chiral helimagnet …read more (https://hackaday.com/2025/03/22/twisting-magnetism-to-control-electron-flow/)

Piezo Sensor Reviewed
https://hackaday.com/2025/03/22/piezo-sensor-reviewed/

If you do FDM 3D printing, you know one of the biggest problems is sensing the bed. Nearly all printers have some kind of bed probing now, and it makes …read more (https://hackaday.com/2025/03/22/piezo-sensor-reviewed/)

Musings on a Good Parallel Computer
https://hackaday.com/2025/03/23/musings-on-a-good-parallel-computer/

Until the late 1990s, the concept of a 3D accelerator card was something generally associated with high-end workstations. Video games and kin would run happily on the CPU in one’s …read more (https://hackaday.com/2025/03/23/musings-on-a-good-parallel-computer/)

Booting a Desktop PDP-11
https://hackaday.com/2025/03/23/booting-a-desktop-pdp-11/

Ever heard of VENIX? There were lots of variants of Unix back in the day, and VENIX was one for the DEC Professional 380, which was — sort of — …read more (https://hackaday.com/2025/03/23/booting-a-desktop-pdp-11/)

The Mysterious Mindscape Music Board
https://hackaday.com/2025/03/23/the-mysterious-mindscape-music-board/

https://theretroweb.com/expansioncards/s/mindscape-music-board
" data-image-caption="" data-medium-file="https://hackaday.com/wp-content/uploads/2025/01/mindscape_music_board_ian_romanick.jpg?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2025/01/mindscape_music_board_ian_romanick.jpg?w=800">Sound cards on PC-compatible computer systems have a rather involved and convoluted history, with not only a wide diversity of proprietary standards, but also a collection of sound cards that …read more (https://hackaday.com/2025/03/23/the-mysterious-mindscape-music-board/)