WAGS 25.11.2020: Bubbles in the Rain
Bubbles in the Rain You have all seen this, but perhaps never questioned why the bubbles form from some rain drops and not from others! I have noticed that more often than not, the bubbles form on asphalt, such as used in roads and playgrounds. Not so much on flat concrete. Sometimes on mud and low grass. My grandfather, who was a bit of a savant used to say, "bubbles in the puddles it will rain all day". But then where he lived, in England, it used to rain all day quite a lot. Now I researched this and came up with some probable reasons from apparently learned professors: Bubbles consist of a gas trapped by a liquid, where the liquid has a surface tension high enough to encapsulate the gas. This gives bubbles three ingredients: the liquid, the gas, and surface tension. The first ingredient, the liquid, is obviously the rainwater . The second ingredie...