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Have you ever wondered why does hardwood float top top water, while rocks and fine sand grains fall into the water and also sink?

There is a straightforward answer to this question: because the wood has actually a lower thickness than water, it floats on it.

Well, it is the appropriate answer, but it’s no perfect in ~ all. Over there are various other points.

Have you ever wondered just how a large ship can move ~ above the water there is no drowning? how does a metal boat stay floating on the water, however an iron rod drowns? have actually you ever before thought about it?