There are plenty of rocket experimenters toying with various liquid-fueled contraptions at the moment, and [Sciencish] is one of them. He grew tired of using air-pressurized fuel delivery systems in …read more (https://hackaday.com/2022/04/25/3d-printed-turbo-pump-hopes-to-propel-rockets-to-the-sky/)

The Apollo Digital Ranging System: More Than Meets The Eye
https://hackaday.com/2022/04/25/the-apollo-digital-ranging-system-more-than-meets-the-eye/

If you haven’t seen [Ken Shirriff]’s teardowns and reverse engineering expeditions, then you’re in for a treat. His explanation and demonstration of the Apollo digital ranging system is a fascinating …read more (https://hackaday.com/2022/04/25/the-apollo-digital-ranging-system-more-than-meets-the-eye/)

Learning Electronics By Just Doing It
https://hackaday.com/2022/04/25/learning-electronics-by-just-doing-it/

Learning anything new, especially so broad and far reaching as electronics, can be hard. [IMSAI Guy] knows this because he gets asked regularly “how do I learn electronics?” Many of …read more (https://hackaday.com/2022/04/25/learning-electronics-by-just-doing-it/)

Lofipi Keeps the Chill Beats Coming
https://hackaday.com/2022/04/25/lofipi-keeps-the-chill-beats-coming/

These days, many people love having some lo-fi beats on when they chill and study. This has led to a cottage industry dedicated to producing said beats, and the format …read more (https://hackaday.com/2022/04/25/lofipi-keeps-the-chill-beats-coming/)

Physical Control Panel Elevates Flight Sim Experience
https://hackaday.com/2022/04/26/physical-control-panel-elevates-flight-sim-experience/

Like so many of us, [pgsanchez] has been bitten by the flight simulator bug. It’s a malady that can only be treated, but never cured — and like so many …read more (https://hackaday.com/2022/04/26/physical-control-panel-elevates-flight-sim-experience/)

Hand-Built Metal Mouse is Beautifully Engraved
https://hackaday.com/2022/04/26/hand-built-metal-mouse-is-beautifully-engraved/

Computer mice, like computers themselves, used to be built almost solely in hideous beige designs. These days, things are a bit more stylish, but they’re still largely following a simple …read more (https://hackaday.com/2022/04/26/hand-built-metal-mouse-is-beautifully-engraved/)

The Sinclair ZX Spectrum Turns 40
https://hackaday.com/2022/04/26/the-sinclair-zx-spectrum-turns-40/

btrhdr
" data-medium-file="https://hackaday.com/wp-content/uploads/2022/04/spectrum-40-featured.jpg?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2022/04/spectrum-40-featured.jpg?w=800">It’s an auspicious moment for retrocomputing fans, as it’s now four decades since the launch of the Sinclair ZX Spectrum. This budget British microcomputer was never the best of the …read more (https://hackaday.com/2022/04/26/the-sinclair-zx-spectrum-turns-40/)