👉 The Marie fluid, also known as the Marie Curie fluid or radium-fluorescent liquid, is a highly luminescent and viscous solution discovered by Marie Curie and her husband Pierre in the early 20th century. It was created by dissolving radium chloride in a solvent, typically a mixture of alcohol and ether, which exhibited intense green fluorescence when exposed to ultraviolet light. This luminescence was so pronounced that it could be seen even in complete darkness, earning it the name "Marie fluid." The Marie fluid's unique properties made it a significant scientific curiosity and contributed to the understanding of radioactivity, as it highlighted the radioactive nature of radium.
