How Hydraulic Ram Pumps Push Water Uphill With No External Power Input

Imagine you have a natural stream running through a low-lying area on your farm. It’s a great source of fresh water, only you really need it to irrigate some crops …read more

On 3D Scanners And Giving Kinects A New Purpose In Life

The concept of a 3D scanner can seem rather simple in theory: simply point a camera at the physical object you wish to scan in, rotate around the object to …read more

FLOSS Weekly Episode 849: Veilid: Be A Brick

This week Jonathan talks with Brandon and TC about Veilid, the peer-to-peer networking framework that takes inspiration from Tor, and VeilidChat, the encrypted messenger built on top of it. What …read more

Lost Techniques: Bond-out CPUs And In Circuit Emulation

These days, we take it for granted that you can connect a cheap piece of hardware to a microcontroller and have an amazing debugging experience. Stop the program. Examine memory …read more

The Hottest Spark Plugs Were Actually Radioactive

In the middle of the 20th century, the atom was all the rage. Radiation was the shiny new solution to everything while being similarly poorly understood by the general public …read more

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Divining Air Quality With A Cheap Computer Vision Device

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By Lewin Day | October 5, 2025

There are all kinds of air quality sensors on the market that rely on all kinds of electro-physical effects to detect gases or contaminants and report them back as a …read more
Optimizing A QuickTake Image Decoder For The Apple II’s 6502

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By Maya Posch | October 5, 2025

The idea of using the Apple II home computer for digital photography purposes may seem somewhat daft considering that this is not a purpose that they were ever designed for, …read more
Wearable Neon Necklaces Run On Battery Power

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By Lewin Day | October 5, 2025

We typically think of neon signs as big commercial advertisements, hanging inside windows and lofted on tall signposts outside highway-adjacent businesses. [James Akers] has gone the other route with a …read more
3D Printing A New Kind Of Skateboard That Is Ultimately Unsafe

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By Lewin Day | October 5, 2025

Skateboards were organically developed in the 1940s and 1950s; 30 years would then pass before the ollie was developed, unlocking new realms for skaters dedicated to the artform. The advent …read more
Simple Counter Mechanism In An Asthma Inhaler

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By Maya Posch | October 5, 2025

Recently [Anthony Francis-Jones] decided to take a closer look at the inhaler that his son got prescribed for some mild breathing issues, specifically to teardown the mechanical counter on it. …read more
2025 Component Abuse Challenge: Digital Logic With Analog Components

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By Bryan Cockfield | October 4, 2025

[Tim] noticed recently that a large number of projects recreating discrete logic tend to do so with technology around 70 years old like resistor-transistor logic (RTL) or diode-transistor logic (DTL). …read more
How To Design Custom LCDs For Your Own Projects

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By Lewin Day | October 4, 2025

These days, you can buy full graphical LCD or OLED displays for just a few dollars. However, if you’re so inclined, you can actually get your own segmented LCDs made …read more

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How Hydraulic Ram Pumps Push Water Uphill With No External Power Input

On 3D Scanners And Giving Kinects A New Purpose In Life

FLOSS Weekly Episode 849: Veilid: Be A Brick

Lost Techniques: Bond-out CPUs And In Circuit Emulation

The Hottest Spark Plugs Were Actually Radioactive

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How Hydraulic Ram Pumps Push Water Uphill With No External Power Input

FLOSS Weekly Episode 849: Veilid: Be A Brick

How Hydraulic Ram Pumps Push Water Uphill With No External Power Input

On 3D Scanners And Giving Kinects A New Purpose In Life

FLOSS Weekly Episode 849: Veilid: Be A Brick

Lost Techniques: Bond-out CPUs And In Circuit Emulation

The Hottest Spark Plugs Were Actually Radioactive

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