Radioactivity--Intensity of Gamma Radiation vs. Distance

[@sadikhasan7887]

My heartbeat stopped for a second when I saw him grabbing the radioactive thing with bare hand. My lab assistant was way too cautious 😵

[@aapoheiska3724]

related to finland?

[@borisbellone5833]

ruclips.net/video/TFi5bLrbBJ4/видео.html una radiografia o meglio gammagrafia con un campione di pechblenda di Marie Curie