来自《耶鲁大学开放课程：基础物理 第17集 第17集》
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everything falls exponentially with time.所有的都随着时间呈指数下降 -
That is, you should imagine you pull something, let it go,也就是 假设你拉着什么 然后放开 -
it comes slowly and stops.它变慢而后静止 -
When you buy your shocks in your car,当你买车的减震器时 -
the shock absorbers,减震器 -
they're supposed to damp the vibration of the car.它们应起到减少车的震动的作用 -
It's got a spring suspending the tires,轮胎上挂着弹簧 -
but it's immersed in some viscous medium.不过它是嵌在某种粘性介质中 -
So that is, vibrations are damped.因此 震动被消减了 -
So, when you hit a bump,如果你被颠了一下 -
if your shocks are dead,而你的减震器又失灵了 -
you vibrate a lot of times and slowly settle down.你会震动很多次然后缓慢地稳定下来