No Active Components in This Mysterious Audio Oscillator
https://hackaday.com/2024/04/23/no-active-components-in-this-mysterious-audio-oscillator/

What’s the simplest audio frequency oscillator you can imagine? There’s the 555, of course, and we can think of a few designs using just two transistors or even a few …read more (https://hackaday.com/2024/04/23/no-active-components-in-this-mysterious-audio-oscillator/)

Flute Now Included on List of Human Interface Devices
https://hackaday.com/2024/04/24/flute-now-included-on-list-of-human-interface-devices/

For decades now, we’ve been able to quickly and reliably interface musical instruments to computers. These tools have generally made making and recording music much easier, but they’ve also opened …read more (https://hackaday.com/2024/04/24/flute-now-included-on-list-of-human-interface-devices/)

Chinese Subs May Be Propelled Silently By Lasers
https://hackaday.com/2024/04/24/chinese-subs-may-be-propelled-silently-by-lasers/

A Chinese Type 41 submarine, without lasers
" data-medium-file="https://hackaday.com/wp-content/uploads/2024/04/Chinese_Type_041_submarine.jpg?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2024/04/Chinese_Type_041_submarine.jpg?w=800">If sharks with lasers on their heads weren’t bad enough, now China is working on submarines with lasers on their butts. At least, that’s what this report in the South …read more (https://hackaday.com/2024/04/24/chinese-subs-may-be-propelled-silently-by-lasers/)

Mining and Refining: Uranium and Plutonium
https://hackaday.com/2024/04/24/mining-and-refining-uranium-and-plutonium/

When I was a kid we used to go to a place we just called “The Book Barn.” It was pretty descriptive, as it was just a barn filled with …read more (https://hackaday.com/2024/04/24/mining-and-refining-uranium-and-plutonium/)

The First European Pocket Calculator Came From Yugoslavia
https://hackaday.com/2024/04/24/the-first-european-pocket-calculator-came-from-yugoslavia/

At the start of the 1970s the pocket calculator was the last word in personal electronics, and consumers in Europe looked eagerly towards Japan or the USA for a glimpse …read more (https://hackaday.com/2024/04/24/the-first-european-pocket-calculator-came-from-yugoslavia/)

Supercon 2023: Alex Lynd Explores MCUs in Infosec
https://hackaday.com/2024/04/24/supercon-2023-alex-lynd-explores-mcus-in-infosec/

The average Hackaday reader hardly needs to be reminded of the incredible potential of the modern microcontroller. While the Arduino was certainly transformative when it hit the scene, those early …read more (https://hackaday.com/2024/04/24/supercon-2023-alex-lynd-explores-mcus-in-infosec/)

DIY Electronics Plus Woodworking Equal Custom Lamp
https://hackaday.com/2024/04/24/diy-electronics-plus-woodworking-equal-custom-lamp/