Radioactivity measurements - introduction

Just for fun I started to collect some radioactivity measurements.
I did something similar 35 years ago in Italy with a DIY kit from Nuova Elettronica.
Why ? Well, as I said, just for fun and curiosity and don't forget we have a nuclear plant in Arkansas. Never hurt to monitor if something fishing is going on (and no, so far everything is fine for what I can say :) )

A toroid tale

I'm a software developer, mainly in firmware for many years and still today I really love working on small board in C or assembly. I consider that a "real" programmer job.
Going down on the memory lane (pun intended :) ) it can explains maybe why.