Have you ever fell asleep on the bus or subway ride home? If so, you'd know that vibration can put you to sleep very quickly. I've always wondered why and how it succeeded at doing so. I've already considered a few relations to baby cribs and that's why parents will rock it to make their infant fall asleep quicker. What is it about the notion of continued movement at a constant speed and how does it put you to sleep?
Anyone care to take a guess?
Anyone care to take a guess?