Old Civil Defense survey meters like the V-715 are interesting conversation starters, but of very little practical use today. These devices were intended to be a sort of litmus test that survivors of ...

It’s really amazing what you can find at military surplus shops. [David] just built a radiation detector out of a DT-590A scintillation probe originally made to test if Air Force bases were ...

Anyone considering building their very own Raspberry Pi laptop cyberdeck are sure to enjoy and get inspiration from the R.A.T.I.S. (Remote Assault and Tactical Intelligence System) cyberdeck created ...

We can't always work alongside a pro to see what makes things tick, and that's where do-it-yourself projects come in handy. They're the entertaining alternative to learning a new skill. In this week's ...