December 1, 2021

East Valley Times

Complete News World

Why Marie Curie notebooks are stored under multiple layers of lead in a cellar (will remain intact for at least 1,500 years)

In the cellars of the National Library of France are placed special boxes containing several layers of lead, some of the most important documents in the history of science.

To consult with them, researchers can only do so by wearing protective clothing almost like an astronaut, and the company must sign an approval waiver of any liability.