From space, the most striking feature of our Pale Blue Dot is exactly what makes it blue: all that water. About three-quarters of the globe is covered with liquid water, …read more (https://hackaday.com/2024/10/17/mining-and-refining-mine-dewatering/)

The FNIRSI HRM-10 Internal Resistance Meter
https://hackaday.com/2024/10/17/the-fnirsi-hrm-10-internal-resistance-meter/

https://www.youtube.com/watch?v=yJ0N97Ck-zI
" data-image-caption="" data-medium-file="https://hackaday.com/wp-content/uploads/2024/10/Screenshot-2024-10-16-130422-featured.png?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2024/10/Screenshot-2024-10-16-130422-featured.png?w=800" tabindex="0" role="button">Occasionally, we find fun new electronic instruments in the wild and can’t resist sharing them with our readers. The item in question is the FNIRSI HRM-10 Internal resistance meter, which …read more (https://hackaday.com/2024/10/17/the-fnirsi-hrm-10-internal-resistance-meter/)

Ubiquitous Successful Bus: Version 2
https://hackaday.com/2024/10/17/ubiquitous-successful-bus-version-2/

I’ve talked a fair bit about USB-C before, explaining how it all works, from many different angles. That said, USB-C is just the physical connector standard, plus the PD part …read more (https://hackaday.com/2024/10/17/ubiquitous-successful-bus-version-2/)

Access the Information Superhighway With a Mac Plus
https://hackaday.com/2024/10/17/access-the-information-superhighway-with-a-mac-plus/

For some time now, Apple has developed a reputation for manufacturing computers and phones that are not particularly repairable or upgradable. While this reputation is somewhat deserved, especially in recent …read more (https://hackaday.com/2024/10/17/access-the-information-superhighway-with-a-mac-plus/)

Tiny LoRa GPS Node Relies on ESP32
https://hackaday.com/2024/10/17/tiny-lora-gps-node-relies-on-esp32/

Sometimes you need to create a satellite navigation tracking device that communicates via a low-power mesh network. [Powerfeatherdev] was in just that situation, and they whipped up a particularly compact …read more (https://hackaday.com/2024/10/17/tiny-lora-gps-node-relies-on-esp32/)

Laser Painting Explained
https://hackaday.com/2024/10/17/laser-painting-explained/

If you get an inexpensive diode laser cutter, you might have been disappointed to find it won’t work well with transparent acrylic. The material just passes most of the light …read more (https://hackaday.com/2024/10/17/laser-painting-explained/)

Redbox Is Dead, But The Machines Are Kind Of Hanging On
https://hackaday.com/2024/10/17/redbox-is-dead-but-the-machines-are-kind-of-hanging-on/

Redbox was a service for renting DVDs from automated kiosks. The business was going well until it wasn’t anymore, and then the company went bankrupt in July this year. And …read more (https://hackaday.com/2024/10/17/redbox-is-dead-but-the-machines-are-kind-of-hanging-on/)

Building A ZX Spectrum Using Only New Parts
https://hackaday.com/2024/10/17/building-a-zx-spectrum-using-only-new-parts/