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 ...

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 it ...

"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 ...

Radiation, or electromagnetic waves as it’s sometimes called, exists all around you in the natural environment. In most cases, it’s found in nontoxic amounts that have no lasting effect on the body.