TIL about the $50 science kit that had real Uranium. The Gilbert U-238 Atomic Energy Lab (1950s) was meant for kids. The kit included a cloud chamber for viewing particle physics, a Geiger counter for monitoring radiation levels and measuring radioactive decay, as well as radioactive ore.
https://en.wikipedia.org/wiki/Gilbert_U-238_Atomic_Energy_Laboratory
https://www.reddit.com/r/todayilearned/comments/15sjymd/til_about_the_50_science_kit_that_had_real/
