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A tiny radioactive battery could keep your future phone running for 50 years
(www.techradar.com)
This is a most excellent place for technology news and articles.
No worries. Glow it up, let's get some extreme energy density up in this bitch. I went for nuke in the old days where I enlisted in the military.
I have a healthy respect for radiation. That's why I leave handling the good stuff to the professionals.
I've actually got some small isotope samples in a lockbox from an old highschool demonstration lab for Geiger counters. No Geiger counter though yet. I haven't even opened it since I got it to check the contents were intact.
pen-sized-ish Geiger counters/scintillating meters are pretty cheap these days.