Study finds raindrops act like tiny electric charges, corroding car surfaces

A new study has revealed that raindrops generate small electrical discharges similar to lightning bolts when they strike surfaces. This phenomenon, previously overlooked, has been found to contribute to the corrosion of car bodywork over time. Researchers discovered that the impact of falling water droplets produces enough electrical energy to degrade certain materials. The findings highlight a new and unexpected way in which ordinary rainfall can cause physical damage to vehicles and potentially other surfaces.