Collaborate Disseminate
It is no secret that we like a good hack and [Federico Amedeo Izzo] explains a hack for the PinePhone that can double the speed used for the device’s memory …read more Continue reading PinePhone Speed Up Takes Soldering
Over on the Spectrum web site, [Dale] — a relatively new ham radio operator — talks about his system for sending text messaging over VHF radios called HamMessenger. Of course, …read more Continue reading Arduino + Ham Radio = Texting
Here it is almost 2022 and we still don’t have our jet packs. But don’t feel bad. NASA astronauts wanted a lunar jetpack, but they didn’t get one either. [Amy] …read more Continue reading There were Almost Jet Packs on the Moon
People tend to obsess over making computer software faster. You can, of course, just crank up the clock speed and add more processors, but often the most powerful way to …read more Continue reading Hacking Multiplication with Karatsuba’s Algorithm
You don’t have two ears by accident. [Stoppi] has a great post about this, along with a video you can see below. (The text is in German, but that’s what …read more Continue reading Binaural Hearing Modeled with an Arduino
Glasses wearers, try a little experiment. Take off your glasses and look at this page or, at least, at something you can’t see well without your glasses. Now imagine if …read more Continue reading Tech in Plain Sight: Eyeglasses
If you don’t care about shortwave frequencies, the PlutoSDR is a great deal. The device is supposed to be an evaluation board for Analog Device’s radio chips, but it does …read more Continue reading Pluto Spectrum Analyzer Uses Command Line
GPS and similar satellite navigation systems changed everything. The modern generation is far less likely to have had to fold a service station map or ask someone for directions on …read more Continue reading Vacuum “Tube” Might Replace GPS One Day
Throughout history, people have devised ways to send information across long distances. For centuries we relied on smoke signals, semaphores, and similar physical devices. Electricity changed everything. First the telegraph …read more Continue reading Forget Radio! Transmitting with Neutrons
Finding high voltage capacitors can be tricky. Sure, you can buy these capacitors, but they are often expensive and hard to find exactly what you want. [RachelAnne] needed some low-value …read more Continue reading Build Your Own HV Capacitors