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Author Archives: Al Williams

Spy Drone Propeller Makes for a Quiet PC

Posted on February 7, 2023 by Al Williams

MIT recently announced its research on toroidal propellers to create quieter drones. That got [Major Hardware] thinking about noisy PC fans. The obvious solution was to adapt the toroidal shape …read more Continue reading Spy Drone Propeller Makes for a Quiet PC→

Posted in 3d Printer hacks, fan, PC cooling

SDR Scanner Listens to Everything

Posted on February 6, 2023 by Al Williams

In the old days, scanners would listen to a bunch of channels in a round-robin fashion. If a signal breaks the squelch, the scanner stops and scanning continues scanning after …read more Continue reading SDR Scanner Listens to Everything→

Posted in radio hacks, RTL-SDR, scanner, sdr

Arduino Does SDI Video with FPGA Help

Posted on February 6, 2023 by Al Williams

If you are running video around your home theater, you probably use HDMI. If you are running it in a professional studio, however, you are probably using SDI, Serial Digital …read more Continue reading Arduino Does SDI Video with FPGA Help→

Posted in arduino, Arduino Hacks, Arduino MKR Vidor 4000, FPGA, sdi, serial digital interface, video hacks

Ikea Clock Gets Wanderlust

Posted on February 6, 2023 by Al Williams

We always enjoy unique clocks, and a recent 3D print from [David Kingsman] caught our eye. It converts an Ikea clock into a very unusual-looking “wandering hour” clock that uses …read more Continue reading Ikea Clock Gets Wanderlust→

Posted in 3d print, 3d Printer hacks, clock, clock hacks, Geneva Drive, wandering hour

Hacking the Python For Loop

Posted on February 6, 2023 by Al Williams

In the early days of C, you’d occasionally see someone — probably a former Pascal programmer — write something like this: #define BEGIN { #define END } This would usually …read more Continue reading Hacking the Python For Loop→

Posted in Python, software development, software hacks

Sundial Collection is 2D Printed

Posted on February 5, 2023 by Al Williams

We see a lot of clocks, and many of the better ones have some 3D printed elements to them. But [Carl Sabanski] shows us his kits for making sundials for …read more Continue reading Sundial Collection is 2D Printed→

Posted in 2d print, clock hacks, kids, orgami, Paper, sundial | Tagged Folding

Scratch Your Itch to Program a Microcontroller

Posted on February 4, 2023 by Al Williams

One of the fun things about “old school” computers is that it was fairly easy to get kids into programming them. The old Basic interpreters were pretty forgiving, and you …read more Continue reading Scratch Your Itch to Program a Microcontroller→

Posted in block programming, Microcontrollers, scratch

Electron Microscope Conversion Hack

Posted on February 1, 2023 by Al Williams

Some of you probably know this already, but there’s actually more than one kind of electron microscope. In electronics work, the scanning electron microscope (SEM) is the most common. You …read more Continue reading Electron Microscope Conversion Hack→

Posted in electron microscope, Science

DIY Adjustable Wrench? Nuts!

Posted on February 1, 2023 by Al Williams

What do you do if you want a tiny little adjustable wrench? If you’re [my mechanics] you build your own. Where do you get the stock metal? Well, he started …read more Continue reading DIY Adjustable Wrench? Nuts!→

Posted in adjustable wrench, handtools, metalworking, tool hacks

RF Spectrometer Sees Inside

Posted on January 31, 2023 by Al Williams

Spectrometry is a well-known technique or, more correctly, a set of techniques. We usually think of it as the analysis of light to determine what chemicals are producing it. For …read more Continue reading RF Spectrometer Sees Inside→

Posted in nanovna, RF, Science, spectroscopy

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