Splosh!

Well, you go all through your life believing something to be so, only to find that you've been wrong all along. What shape's a raindrop?  Well - raindrop shape, yes? A sort of tapered globe going to a point at the top. Also known as teardrop-shape. Well, no apparently.  American scientists have discovered that the true shape of a raindrop is more like the top half of a hamburger bun - rounded at the top and more or less flat on the bottom.  Mind you, at present we could just do with less of them, whatever the shape!