Geiger counters work through ionization, a process in which atoms or molecules gain or lose electrons and become electrically charged. In the device, an electric circuit containing a transformer ...

From cosmic rays to CT scans, radiation surrounds us but not all exposure is dangerous. Here’s how to separate fact from fear ...

There’s no shortage of Geiger counter projects based on the old Soviet SBM-20 tube, it’s a classic circuit that’s easy enough even for a beginner to implement — so long as they don’t get ...

Which Geiger counter is best? If you want to monitor radiation levels from a specific source, you need a reliable Geiger counter. This tool can warn you when there is radiation, as well as measure ...

Top Geiger counter for the money. GQ GMC-320 Plus Geiger Counter Nuclear Radiation Detector. What you need to know: This portable device has a clear display and is simple but effective. What you ...

Marie Curie worked with radioactive material with her bare hands. More than 100 years later, Sophie Hardach travels to Paris ...