Why Does Rain Eat Through Protective Coatings on Metal Structures? Researchers Propose a New Idea: Electrically Charged Droplets
Scientists long attributed rain damage to physical abrasion and chemical degradation from acidic substances. A new study offers a third idea, which could help researchers develop longer-lasting coatings and preserve important objects
We haven't written up this one. Smithsonian has the full story — the link below goes straight to it.