So i’ve recently seen alot of videos with those unsinkable boats in a box: [https://www.youtube.com/watch?v=3UuNTJQEd88&ab\_channel=Commonlee](https://www.youtube.com/watch?v=3UuNTJQEd88&ab_channel=Commonlee) now I get that the blue stuff is water with food coloring and the transparent stuff is oil and that oil always stays on top of the water. But why does the boat always stay inside the oil part? Thanks!
In: Physics
It’s all about density. The materials in the boat are balanced in just such a way as to give it a density *in between* that of the two fluids, so it sinks in one liquid but floats in the other.
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