We all know 555 timers are very useful and pop up in a wide range of projects, but did you know a metal detector is one of them? [vonPongrac] stumbled upon this handy guide, a free eBook on 50 ...

Local historical societies or libraries can offer information to guide your search. Different objects will show up with ...

Manufactures X-ray scanners, walkthrough metal detectors, and hand wands for maximum detection security searches. Provides training, professional installation, and service. Provides contraband ...

You may want to stick around because this is the part of our Desert Detectors beginners’ guide you don’t want to miss. Once you’ve completed the tutorial quest and bought yourself a nice ...

It was a perfect job for a metal detector, but since they didn’t own one, a serviceable unit had to be assembled from literal garbage. To start with, [zaphod] had to research how a metal ...