Today was a good day for many people to observe how water droplets move on car windshields, at least here in Georgia. Science News noted this week that a new study shows that the movement of the droplets up or down the windshield depends on the size of the drop. The larger drops move downward due to the influence of gravity, while the smaller drops move upward under the force of the wind blowing over the windshield. You can read more at https://www.sciencenews.org/article/physics-raindrops-car-windows-gravity-wind.
