Collaborate Disseminate
There was a time when only the richest ham radio operators could have a radio with a panadapter. Back in the day, this was basically a spectrum analyzer that monitored …read more Continue reading Adding a Panadapter to a Classic Receiver
If you want smooth top surfaces on your 3D printed parts, a common technique is to turn on ironing in your slicer. This causes the head to drag through the …read more Continue reading Stop Ironing 3D Prints
While you may have never heard of TAT-8, there is a good chance you sent some data through it. TAT-8 was the 8th transatlantic communications cable and the first transatlantic …read more Continue reading TAT-8 — The First Transatlantic Fiber — Rises Again
If you know about Peltier modules, a solid-state fridge seems like an easy project. Pump 12V into the module, include a heat sink and a fan. Then you are done, …read more Continue reading Peltier Fridges Have Early Death
If you want to reverse engineer a PC board, you could do worse than X-ray it. But thanks to [Philip Giacalone], you could just take a photo, load it into …read more Continue reading X-Ray a PCB Virtually
You wake up in the middle of the night. Is it time to get up? Well, you can look at the nightstand clock. Unless your partner is in the way. …read more Continue reading Tech In Plain Sight: Projection Clocks
One of the issues with nuclear power plants is that they produce long-lived radioactive waste. Storing spent nuclear fuel is a real problem. However, researchers at the Department of Energy’s …read more Continue reading Nuclear Waste Remediation by Proton Beam
Even entry-level oscilloscopes today have simple math functions such as adding or subtracting two channels. But as [Arthur Pini] notes, more advanced scopes can now even do integration and differentiation. …read more Continue reading Calculus by Oscilloscope
You may or may not know, but printf is a Turing-complete language, once you exploit all the strange and wonderful format characters in it (especially %n). But who has time …read more Continue reading Running in Printf
[Hans Rosenberg] has a new video talking about a nasty side effect of using resistors: noise. If you watch the video below, you’ll learn that there are two sources of …read more Continue reading Quieting Noisy Resistors