Collaborate Disseminate
On Star Trek, if you want to go from one deck to another, you enter a “turbolift” and tell it where you want to go. However, many people have speculated …read more Continue reading Next Floor: Geosynchronous Satellites, Orbiting Laboratories
There are two ways to deal with improving ham radio receivers, or — for that matter — any sort of receiver. You can filter and modify the radio frequency including …read more Continue reading Ham Radio Hacking: Thinking Inside the Box
We are big fans of using SQLite for anything of even moderate complexity where you might otherwise use a file. The advantages are numerous, but sometimes you want to be …read more Continue reading Never Too Rich Or Thin: Compress Sqlite 80%
We’ve noticed that [Carl Bugeja] likes flexible PCBs. His latest exploit is to make PCB-based springs that combine with some magnets to create little devices that jump. We aren’t sure …read more Continue reading When [Carl] Says Jump, PCBs say “How High?”
There are many ways to test HF antennas ranging from simulation to various antenna analyzers and bridges. However, nothing can replace simply using the antenna to see how it works. …read more Continue reading Testing Antennas with WSPR
If you had the traditional engineering education, you’ve made your peace with calculus. If you haven’t, you may have learned it on your own, but for many people, calculus has …read more Continue reading Calculus Made Easy in the Car
Most desktop fused deposition modeling (FDM) 3D printers these days use a 0.4 mm nozzle. While many people have tried smaller nozzles to get finer detail and much larger nozzles …read more Continue reading Go Big Or Go Home: 0.6 mm Nozzles are the Future
We think of data storage as a modern problem, but even ancient civilizations kept records. While much of the world used stone tablets or other media that didn’t survive the …read more Continue reading Inca Knots Inspire Quantum Computer
There are some things that leave indelible impressions in your memory. One of those things, for me, was a technical presentation in 1980 I attended — by calling in a …read more Continue reading Your Own Engineering Workstation, with Mame
Want to try a big quantum computer but don’t have the cash? Google wants to up your simulation game with their “Quantum Virtual Machine” that you can use for free. …read more Continue reading Google Quantum, Virtually