"Hearst Magazines and Yahoo may earn commission or revenue on some items through the links below." Geiger counters are used to detect and measure levels of radioactivity. Scientists invented the ...

One thing a radioactive world needs is a good “atom-sized” Geiger counter. Last week the University of Chicago proudly displayed a handy, hip-pocket model. The new gadget is so easy to read that ...

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 ...

Next time you’re waiting in the security line in an airport, why don’t you pull out your smartphone and count all the radiation being emitted by those body scanners and x-rays? There’s an app for that ...

The recent tsunami in Japan and the on-going calamity with the Fukushima nuclear power plant has apparently greatly increased sales of radiation meters, not only in Japan but elsewhere around the ...