How does the moon affect large bodies of water, but not smaller ones like pools or our bodies?

Question

How does the moon affect large bodies of water, but not smaller ones like pools or our bodies?

In: Physics

Answer 1

It affects small bodies as well, but since the effect is pretty much the same over all the small body’s mass there’s nothing to see, however with a very accurate scale you probably could measure slight weight variations.

When you have a large bodies of mass some parts are pulled more than others, this means some parts of the ocean are effectively heavier than others, so the heavier parts displace the lighter ones.