The Kix Cereal Atomic Bomb Ring from 1947, a radioactive toy premium sold to children at the height of post-war atomic enthusiasm — a small plastic ring containing polonium-210 in a tiny chamber that let children watch actual radioactive decay through a lens, a product that could not exist today

Kix Cereal Sold an Actual Radioactive Nuclear Ring To Children in 1947

The Atomic Bomb Ring was a 1940s cereal premium that let kids watch real radioactive magic—a brief but potent blend of playground fun and scientific spectacle.

Moss and Fog
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