"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 ...

The clicking of a Geiger counter is well enough known as a signifier of radioactive materials, due to it providing the menacing sound effect any time a film or TV show deals with radiation. What we’re ...

Apple reportedly made a secret iPod with a Geiger counter for the U.S. government The wild story by a former iPod engineer about how Apple helped make an iPod with a Geiger counter so the U.S. could ...