https://hackaday.com/2025/11/17/watching-radioactive-decay-with-a-homemade-spinthariscope/
Watching Radioactive Decay With A Homemade Spinthariscope | Hackaday
Nov 17, 2025 - Among the many science toys that have fallen out of fashion since we started getting nervous around things like mercury, chlorinated hydrocarbons, and...
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