Fluoroscopy is probably the best-known method of X-ray imaging: an X-ray beam passes through the subject to be imaged, and...
hackaday
An old algebra teacher used to say, “You have to take what you know and use it to get what...
What counts as portable is somewhat a matter of opinion, especially over the years. has a portable spy radio of...
There’s not much more nostalgic for many than good ole’ Jimmy Neutron. This was true for , who saw the...
One of the fun aspects of astrophysics is that much of it involves phenomena which you cannot exactly study from...
One of the stun gun modules with battery pack. (Credit: Dani Cruster DiWHY, YouTube) Few things are more satisfying during...
Even if you’re not normally interested in what’s happening in low Earth orbit, you probably heard that last week NASA...
We’ve talked before about number stations — mysterious shortwave transmitters repeating numbers, presumably for clandestine purposes. But, of course, the...
wanted to spend more time listening to a normal radio to cut back on phone use. But the programming wasn’t...
If you are an American of a certain age, you know the Soviet Union launched the first satellite, Sputnik, beating...
There was a time when a CB radio was a simple affair: a small box with a channel selector, volume,...
There are a lot of single board computers on the market these days, so you can be forgiven if you...
When the Artemis lunar program was first conceived, the third mission would have seen astronauts step foot on the Moon...
OK, every operating system is a bit of a stretch — Windows Vista notably didn’t make the cut — but...
Gravity batteries aren’t exactly a new idea. You can store energy by lifting something heavy, converting kinetic energy into potential...
With so many online messaging services to choose from it’s almost as though the daddy of them all, email, has...
A potentiometer is a simple electrical device that allows resistance to be varied at will. Most everyone in the electronics...
Although 1999 might still feel like yesterday for some of us, in the world of technology the intervening years are...
Zinc air batteries have been a familiar sight for decades in the world of photography, where they provided an environmentally...
Detail of the lead connecting to the inner carbon-filled tube. (Credit: CuriousMarc) Although resistors are hardly among the most exciting...
We’ve all done it. We spy an old radio at a garage sale or resale shop. We know someone should...
Research reactors come in many forms and sizes, with the TRIGA class being commonly found at universities. The TRIGA reactor...
The Global Positioning System (GPS) was developed by the United States military in the 1970s, but it wasn’t long before...
Recently we featured an unusual Commodore 8-bit computer on the bench of — a Commodore 64 in a PET case....
The Hindenburg disaster recently marked its 89th anniversary, and marked the event with a video that dispels many of the...
