Chumby co-creator Andrew "Bunnie" Huang was so moved by the Japanese Earthquake and Fukushima meltdown that he felt compelled to help out. Teaming up with nonprofit organization Safecast, he started work on a radiation monitor that was suitable for everyday civilian use, rather than it remain the sole province of officials. As well as its readings being able to stand up to scientific scrutiny, Huang's counter had to remain functional after a natural disaster, last for ages and be small enough for people to carry around. When he had finished building the reference design, he open-sourced the design so companies like Medcom and individuals could build their own. If you'd like to dabble in the arts of radiation monitoring, head on down to the source link for a fascinating insight into how it's done.

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Bunnie Huang builds open-source geiger counter to help Japanese civilians