A Brief History of Perpetual Motion
https://hackaday.com/2024/07/01/a-brief-history-of-perpetual-motion/

Conservation of energy isn’t just a good idea: It is the law. In particular, it is the first law of thermodynamics. But, apparently, a lot of people don’t really get …read more (https://hackaday.com/2024/07/01/a-brief-history-of-perpetual-motion/)

Modeling Home Heating Systems With Circuit Simulation Software
https://hackaday.com/2024/07/01/modeling-home-heating-systems-with-circuit-simulation-software/

Electricity flow is generally invisible, silent, and not something that most humans want to touch, so understanding how charge moves around can be fairly unintuitive at first. There are plenty …read more (https://hackaday.com/2024/07/01/modeling-home-heating-systems-with-circuit-simulation-software/)

FreeCAD Foray: Shells For All Our PCBs
https://hackaday.com/2024/07/01/freecad-foray-shells-for-all-our-pcbs/

Are you the kind of hacker who tries to pick up FreeCAD, but doesn’t want to go through a tutorial and instead pokes around the interface, trying to transfer the …read more (https://hackaday.com/2024/07/01/freecad-foray-shells-for-all-our-pcbs/)

Casting Concrete With A 3D-Printed Mould
https://hackaday.com/2024/07/01/casting-concrete-with-a-3d-printed-mould/

We’re accustomed to covering the use of 3D printing in casting, usually as a lost-PLA former in metal casting. That’s not the only use of the technique though, and perhaps …read more (https://hackaday.com/2024/07/01/casting-concrete-with-a-3d-printed-mould/)

Split A USB-C PD Port Into Three Port-ions
https://hackaday.com/2024/07/01/split-a-usb-c-pd-port-into-three-port-ions/

There’s no shortage of USB-C chargers in all sorts of configurations, but sometimes, you simply need a few more charging ports on the go, and you got a single one. …read more (https://hackaday.com/2024/07/01/split-a-usb-c-pd-port-into-three-port-ions/)

A DIY Proximity Sensor, Using Just Scrap Parts and Software
https://hackaday.com/2024/07/01/diy-proximity-sensor-using-just-scrap-parts-and-software/

[mircemk] shows how to create a simple non-contact proximity sensor using little more than an Arduino Nano board, and a convenient software library intended to measure the value of capacitors. …read more (https://hackaday.com/2024/07/01/diy-proximity-sensor-using-just-scrap-parts-and-software/)

SIMD-Accelerated Computer Vision on the ESP32-S3
https://hackaday.com/2024/07/01/simd-accelerated-computer-vision-on-the-esp32-s3/