I got some Geiger tubes a few days ago and built a very simple Geiger counter circuit that is powered entirely through the microphone jack (microphone connection provides a little power for things ...

These days, it’s plenty easy to build a Geiger counter with a microcontroller that has a nice fancy display and a simple digital readout for how many radiations you’re likely sucking up into your ...

An electronics engineer named Homo Ludens, who experienced the Chernobyl nuclear power plant accident in 1986 when he was young, said he wanted a way to detect radioactive materials. So he bought a ...