A woman was killed when she fell from a building. Why don't raindrops fall from the sky and hurt people?

In recent years, there have been frequent incidents of falling objects from high altitude, and the results of each incident have shocked us and we can't bear to look straight. There are many objects falling from the sky, such as glass, balls and wine bottles, each of which can cause great lethality. But we are often caught in the rain. Why aren't we hurt? This is determined by the characteristics of rain.

I once saw a joke that an ordinary person mixed into a group of doctors, and the doctors were discussing whether a very light object would die if it fell from a very high place. The doctor said that women are right, but they can't convince each other with all kinds of arguments. Finally, the ordinary people said: Have you never been caught in the rain? Then he got kicked. ...

Although this is a joke, it is actually based on science. Rain is liquid, and its mass is small enough. When falling from the sky, there will be some air resistance, but it is still accelerating. When the speed of raindrops increases, the resistance increases. When the gravity and resistance of raindrops are equal, raindrops move in a straight line at a uniform speed. At this time, raindrops have no lethality.

Secondly, the texture of raindrops is not strong enough, and they will break when touched, which also greatly reduces the lethality. In fact, this is just a very simple high school physics common sense.

Fortunately, this common sense lies in raindrops. If you put it on other hard objects, it is easy to open a big hole in your head, which is also the reason why falling objects are dangerous.

In fact, water is also lethal, but it is only stressful. For example, the "water knife" is fast enough and thin enough to completely make up for the defects in texture, and even the hardest diamonds can be chopped instantly.

It's not dangerous to get caught in the rain, but falling objects from high altitude are very dangerous. We should be responsible for the safety of ourselves and others.