On the outside, a Geiger counter seems like a complicated thing. And you might think a device that detects a dangerous, mostly invisible threat like radiation should be complicated. But they’re ...

When the world finally goes all to hell and the missiles start flying, a Geiger counter will be a handy tool for anyone who survives the blast. Be prepared by building your own Mr. Fission radar ...

There are times in one’s life when circumstances drive an intense interest in one specific topic, and we put our energy into devouring all the information we can on the subject. [The Current Source], ...