Even though we all know what rain looks like and why it occurs, there are still plenty of facts about it that many of us haven’t heard about. First of all, when we imagine rain drops, they are usually tear shaped, and it's not how they really look like. Rain drops have spherical shape and the bigger the drop, the flatter they become, so before it starts to rain we can already recognise how big the shower will be after studying a single drop shape on the ground. We can also recognise a heavy shower by the speed of drops hitting the ground, because the weight of huge drops make them fall really fast. Also many places that we associate with rainy weather are not as wet in statistics and it’s because it might be raining there every single day, but most of the time those are light drizzles. It’s all about the number of millimeters of rain per year that counts and not the number of rainy days. Also, the rainfall in millimeters can differ for every single meter of the ground, so the measure is always the average. In my opinion, those aren’t any surprising facts, but it still makes us think about an everyday event in a different, more curious way.
link:https://theconversation.com/five-things-you-probably-have-wrong-about-rain-194380
Isn't a rain drop a bit like a balloon that changes its shape depending on external pressure?
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