With all the focus on biological problems, we might forget that sometimes it’s handy to know about radiation hazards, too. [Ryan Harrington] shows us how to make a Geiger counter with very few parts, ...

“I can’t help but notice we are in a Whole Foods,” I tell a Whole Foods employee who—perhaps having noticed me walking around ...

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 ...

Japan's nuclear meltdown in the aftermath of the March 11, 2011 earthquake inspired the creation of a grassroots radiation sensor network and a homemade Geiger counter for ordinary citizens. The DIY ...

In the weeks and months after the Fukushima nuclear disaster, a group of entrepreneurs, engineers, hackers and computer programmers formed Safecast and started constructing their own, crowdsourced ...

We all know the clicking of Geiger counters from movies, and we all know that the faster the counter clicks, the worse things are. But how exactly do they work? There are three types of radiation, ...

There’s perhaps no sound more recognizable than the frantic clicking of a Geiger counter. Not because this is some post-apocalyptic world in which everyone is personally acquainted with the operation ...