Hah. Make one of these. Two, for a thoughtful holiday gift.https://en.wikipedia.org/wiki/Kearny_fallout_meterhttp://www.abomb1.org/pdf/kfm_inst.pdf
Other options:
Re: Ionizing Radiation
Hah. Make one of these. Two, for a thoughtful holiday gift.
https://en.wikipedia.org/wiki/Kearny_fallout_meter
http://www.abomb1.org/pdf/kfm_inst.pdf
If you lived out West, I'd recommend
https://en.wikipedia.org/wiki/Kearny_air_pump
- which would be very useful about now.