Eli5: why does the viscosity of a liquid determine the amount of pressure it takes to blow bubbles in it and does the depth of the liquid relative to where the air is released also play a role? (Is it harder to blow bubbles In deeper water?)
In: Mathematics
In order to blow a bubble, you have to push the liquid out of the way to make room for the air. In order for air to push, it has to have pressure. The harder it is the push the liquid, the higher pressure the air has to have in order to successfully push.
Viscosity is just a measure of how hard it is to push liquid around.
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