Marie Curie's notebooks are crazy once you think about it. They're so radioactive they have to be sealed in a lead box. Imagine a world where atomic theory is forgotten and a dude just goes "yea there's a book that details the secrets of the universe, the machinations of the creation of existence down to its barest essentials, but if you get close to it you fucking die. The more you read it the more your body slowly disassembles into mush." like wat excuse me
The Natural History Museum in the UK has been open since the 19th Century. The oldest collection, Geology, hasn't changed much since those days, as there's only so many ways people can come in and look at rocks. However, when I visited in early 2010s, there were a number of small, yellowed pieces of paper marking where specimens had been removed, and explaining that these were later discovered to be radioactive.
Imagine people looking at fucking uranium in those glass cases.










