Classic DOS games never ran from within stand-up arcade cabinets in dollhouses, but [Juha Lilja] imagines a world in which they did. His Micro DOS arcade cabinet is described as …read more (https://hackaday.com/2026/10/17/2026-retrocomputing-challenge-dollhouse-arcade-cabinet-runs-remote-dos-games/)

Busting the Myth that Plastics are Chemically Inert in Water
https://hackaday.com/2026/10/17/busting-the-myth-that-plastics-are-chemically-inert-in-water/

One of the often made claims about plastics is that they are chemically inert under most conditions, such as when exposed to water. This long-held belief has also challenged the …read more (https://hackaday.com/2026/10/17/busting-the-myth-that-plastics-are-chemically-inert-in-water/)

Making a New Mechanism for a Reciprocating Pencil Sharpener
https://hackaday.com/2026/10/17/making-a-new-mechanism-for-a-reciprocating-pencil-sharpener/

An engineer’s greatest tool is the writing utensil. Be it pen or pencil, we use them for everything from making diagrams to marking out cuts. But as with any practitioner …read more (https://hackaday.com/2026/10/17/making-a-new-mechanism-for-a-reciprocating-pencil-sharpener/)

Turning a Wi-Fi Adapter into an SDR
https://hackaday.com/2026/10/18/turning-a-wi-fi-adapter-into-an-sdr/

Since the discovery of an undocumented I/Q sampling feature in ESP32 chips about two weeks ago, there’s been a flood of similar features being found in other wireless chips, including …read more (https://hackaday.com/2026/10/18/turning-a-wi-fi-adapter-into-an-sdr/)

Evolving RC circuits
https://hackaday.com/2026/10/18/evolving-rc-circuits/

We are surrounded by evolving algorithms and AI models, and it feels like we have to evolve to them as well. Of course, the world itself is always evolving, and …read more (https://hackaday.com/2026/10/18/evolving-rc-circuits/)

A Plasma Donut
https://hackaday.com/2026/10/18/a-plasma-donut/

We know [The Action Lab] always has something hands-on. This time, the video shows a toroidal plasma demo and how it relates to nuclear fusion. Plasma has a high temperature, …read more (https://hackaday.com/2026/10/18/a-plasma-donut/)

Building a Microscope with a 3D View
https://hackaday.com/2026/10/18/building-a-microscope-with-a-3d-view/

As electronic components grow ever smaller, a microscope has become an increasingly indispensable tool for any fine work; when inspecting electronics, though, especially solder joints, [Corebb] found a top-down view …read more (https://hackaday.com/2026/10/18/building-a-microscope-with-a-3d-view/)