Linux Fu: Bash Strings
If you are a traditional programmer, using bash for scripting may seem limiting sometimes, but for certain tasks, bash can be very productive. It turns out, some of the limits …read more Continue reading Linux Fu: Bash Strings
Author Archives: Al Williams
Strange Computer Languages: A Hacker’s Field Guide
Why do we build radios or clocks when you can buy them? Why do we make LEDs blink for no apparent purpose? Why do we try to squeeze one extra …read more Continue reading Strange Computer Languages: A Hacker’s Field Guide
Better Car Hinges by 3D Printing
We often use 3D printing to replicate items we might otherwise make with traditional machining methods. Fraunhofer’s new door hinge for a sports car takes a different tack: it tries …read more Continue reading Better Car Hinges by 3D Printing
Printing in Silicone
When you think of making something out of silicone, you usually think of using a mold and injecting it with the material. Can you 3D print it? [Kimberly Beckett] answers …read more Continue reading Printing in Silicone
Underwater Drone Films, is in Film
Having a drone that can follow you running or biking with a camera isn’t big news these days. But French firm Notilo Plus has an underwater drone that can follow …read more Continue reading Underwater Drone Films, is in Film
Directional Antenna 3-Way
If you read old antenna books, you’ll probably see the idea of phased vertical antennas. These use certain lengths of coax to control the phase of a signal going to …read more Continue reading Directional Antenna 3-Way
Affordable HF Loop Antenna Reviewed
Modern ham radio operators often face restrictions on antennas. This has made small antennas more popular, despite some limitations. [Tech Minds] reviews the GA-450 indoor active HF loop antenna and …read more Continue reading Affordable HF Loop Antenna Reviewed
3D Printing Copper
People really want to 3D print metal, but while true metal printers exist, they still are expensive and out of reach of most hackers. However, even if you can afford …read more Continue reading 3D Printing Copper
All About Mecanum
If you’ve dealt with robots or other wheeled projects, you’ve probably heard of mecanum wheels. These seemingly magic wheels have the ability to move in any direction. If you’ve ever …read more Continue reading All About Mecanum
Arduino Meets Quantum Computer
Quantum computers aren’t quite ready for the home lab, but since there are ways to connect to some over the Internet, you can experiment with them more easily than you …read more Continue reading Arduino Meets Quantum Computer