Why do Babies calm down when placed on a washing machine?

Kat - Yes, I think that there is definitely some truth in this because obviously the inside of a lady is not a very quiet and still place. People walk around, they're sort of constantly talking, joggling about, wondering around, all that kind of stuff. And so, I should think that the vibrations of a washing machine and perhaps a bit of the noise would help to calm a baby down. A friend of mine always used this, by sticking the kid just in the back of the car and driving around until it fell asleep. So, I'm sure there's probably some truth in that and it probably is the vibration that does it.